Update to IDS 0.5.8

2026-08-10 01:41:57 +00:00 · 2022-02-23 00:24:40 +01:00
parent ad135f70f1
commit 320bb7a086
3 changed files with 506 additions and 195 deletions
@@ -22,7 +22,7 @@ import logging
 import operator
 import os
 import numpy as np
-from datetime import date
+import datetime

 import ifcopenshell.util.element
 import ifcopenshell.util.placement
@@ -36,7 +36,7 @@ from xmlschema.validators import identities


 cwd = os.path.dirname(os.path.realpath(__file__))
-ids_schema = XMLSchema(os.path.join(cwd, "ids.xsd"))  # source: "http://standards.buildingsmart.org/IDS/ids_04.xsd"
+ids_schema = XMLSchema(os.path.join(cwd, "ids.xsd"))  # source: "http://standards.buildingsmart.org/IDS/ids_05.xsd"


 def error(msg):
@@ -48,29 +48,29 @@ class ids:

    def __init__(
        self,
-        ifcversion=None,
-        description=None,
-        author=None,
+        title="Name",
        copyright=None,
        version=None,
-        creation_date=None,
+        description=None,
+        author=None,
+        date=None,
        purpose=None,
        milestone=None,
    ):
        """Create an IDS object.

-        :param ifcversion: IFC schema version. If None, then schema independent. Options: '2.3.0.1'|'4.0.2.1'|'4.3.0.0'|None, defaults to None
-        :type ifcversion: str, optional
-        :param description:, defaults to None
-        :type description: str, optional
-        :param author: Email of the IDS author, defaults to None
-        :type author: str, optional
+        :param title: Name of the IDS file, defaults to None
+        :type title: str, required
        :param copyright:, defaults to None
        :type copyright: str, optional
        :param version: IDS file version, defaults to None
        :type version: float, optional
-        :param creation_date: Date in 'yyyy-mm-dd' format, defaults to current date
-        :type creation_date: str, optional
+        :param description:, defaults to None
+        :type description: str, optional
+        :param author: Email of the IDS author, defaults to None
+        :type author: str, optional
+        :param date: Date in 'yyyy-mm-dd' format, defaults to current date
+        :type date: str, optional
        :param purpose:, defaults to None
        :type purpose: str, optional
        :param milestone:, defaults to None
@@ -78,23 +78,22 @@ class ids:
        """
        self.specifications = []
        self.info = {}
-        if ifcversion:
-            if ifcversion in ["2.3.0.1", "4.0.2.1", "4.3.0.0"]:
-                self.info["ifcversion"] = ifcversion
-        if author:
-            if "@" in author:
-                self.info["author"] = author
-        if description:
-            self.info["description"] = description
+        if title:
+            self.info["title"] = title
        if copyright:
            self.info["copyright"] = copyright
        if version:
            self.info["version"] = version
-        if creation_date:
-            if re.match(r"\d\d\d\d-\d\d-\d\d", creation_date):
-                self.info["date"] = creation_date  # date.fromisoformat(creation_date).isoformat()
+        if description:
+            self.info["description"] = description
+        if author:
+            if "@" in author:
+                self.info["author"] = author
+        if date:
+            if re.match(r"\d\d\d\d-\d\d-\d\d", date):
+                self.info["date"] = date  # date.fromisoformat(creation_date).isoformat()
        if "date" not in self.info:
-            self.info["date"] = date.today().isoformat()
+            self.info["date"] = datetime.date.today().isoformat()
        if purpose:
            self.info["purpose"] = purpose
        if milestone:
@@ -110,12 +109,12 @@ class ids:
            "@xmlns": "http://standards.buildingsmart.org/IDS",
            "@xmlns:xs": "http://www.w3.org/2001/XMLSchema",
            "@xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
-            "@xsi:schemaLocation": "http://standards.buildingsmart.org/IDS/ids_04.xsd",
-            "specification": [],
+            "@xsi:schemaLocation": "http://standards.buildingsmart.org/IDS/ids_05.xsd",
            "info": self.info,
+            "specifications": [],
        }
        for spec in self.specifications:
-            ids_dict["specification"].append(spec.asdict())
+            ids_dict["specifications"].append({"specification": spec.asdict()})  #TEST!
        return ids_dict

    def to_xml(self, filepath="./", ids_schema=ids_schema):
@@ -142,7 +141,7 @@ class ids:
                "": "http://standards.buildingsmart.org/IDS",
                "xs": "http://www.w3.org/2001/XMLSchema",
                "xsi": "http://www.w3.org/2001/XMLSchema-instance",
-                "xsi:schemaLocation": "http://standards.buildingsmart.org/IDS/ids_04.xsd",
+                "xsi:schemaLocation": "http://standards.buildingsmart.org/IDS/ids_05.xsd",
            },
        )  # validation='skip',

@@ -152,7 +151,7 @@ class ids:
                "": "http://standards.buildingsmart.org/IDS",
                # 'xs': 'http://www.w3.org/2001/XMLSchema',
                # 'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
-                # 'xsi:schemaLocation': "http://standards.buildingsmart.org/IDS/ids_04.xsd"
+                # 'xsi:schemaLocation': "http://standards.buildingsmart.org/IDS/ids_05.xsd"
            },
        )

@@ -181,7 +180,7 @@ class ids:
            filepath, strip_namespaces=True, namespaces={"": "http://standards.buildingsmart.org/IDS"}
        )
        ids_file = ids()
-        ids_file.specifications = [specification.parse(s) for s in ids_content["specification"]]
+        ids_file.specifications = [specification.parse(s) for s in ids_content["specifications"]["specification"]]
        return ids_file

    def validate(self, ifc_file, logger=None):
@@ -197,19 +196,19 @@ class ids:
            logging.basicConfig(level=logging.INFO, format="%(message)s")
            logger.setLevel(logging.INFO)

-        if "ifcversion" in self.info.keys():
-            if self.info["ifcversion"] in ["2.3.0.1", "4.0.2.1", "4.3.0.0"]:
-                if self.info["ifcversion"][0:3] == "2.3":
-                    if not ifc_file.schema.startswith("IFC2x3"):
-                        logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
-                elif self.info["ifcversion"][0:3] == "4.0":
-                    if not ifc_file.schema == "IFC4":
-                        logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
-                elif self.info["ifcversion"][0:3] == "4.3":
-                    if not ifc_file.schema.startswith("IFC4x3"):
-                        logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
-                else:
-                    logger.error("IFC version not recognized")
+        # if "ifcversion" in self.info.keys():
+        #     if self.info["ifcversion"] in ["2.3.0.1", "4.0.2.1", "4.3.0.0"]:
+        #         if self.info["ifcversion"][0:3] == "2.3":
+        #             if not ifc_file.schema.startswith("IFC2x3"):
+        #                 logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
+        #         elif self.info["ifcversion"][0:3] == "4.0":
+        #             if not ifc_file.schema == "IFC4":
+        #                 logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
+        #         elif self.info["ifcversion"][0:3] == "4.3":
+        #             if not ifc_file.schema.startswith("IFC4x3"):
+        #                 logger.error("IFC file is of %s not of %s schema." % (ifc_file.schema, self.info["ifcversion"]))
+        #         else:
+        #             logger.error("IFC version not recognized")

        # Consider other way around: for elem, for spec so we can see if an element pass all IDSes?
        for spec in self.specifications:
@@ -222,7 +221,7 @@ class ids:
                if comply:
                    self.ifc_passed += 1
            if self.ifc_applicable == 0:
-                if spec.necessity == "required":
+                if spec.use == "required":
                    logger.error("No applicable elements found. Minimum 1 applicable element required.")
                else:
                    logger.debug("No applicable elements found. None required.")
@@ -248,18 +247,19 @@ class ids:
 class specification:
    """Represents the XML <specification> node and its two children <applicability> and <requirements>"""

-    def __init__(self, name="Specification", necessity="required"):
+    def __init__(self, name="Specification", use="required", ifcVersion="IFC2X3"):
        """Create a specification to be added in ids.

        :param name:, defaults to "Specification"
        :type name: str, optional
-        :param necessity: 'required'|'optional', defaults to "required"
-        :type necessity: str, optional
+        :param use: 'required'|'optional', defaults to "required"
+        :type use: str, optional
        """
        self.name = name
        self.applicability = None
        self.requirements = None
-        self.necessity = necessity
+        self.ifcVersion = ifcVersion
+        self.use = use

    def asdict(self):
        """Converts object to a dictionary, adding required attributes.
@@ -270,7 +270,8 @@ class specification:
        # if older python collections.OrderedDict()
        spec_dict = {
            "@name": self.name,
-            "@necessity": self.necessity,
+            "@use": self.use,
+            "@ifcVersion": self.ifcVersion,
            "applicability": {},
            "requirements": {},
        }
@@ -299,8 +300,12 @@ class specification:
            return facets

        spec = specification()
-        spec.name = ids_dict["@name"]
-        spec.necessity = ids_dict["@necessity"]
+        try:
+            spec.name = ids_dict["@name"]
+        except KeyError: 
+            spec.name = ""
+        spec.use = ids_dict["@use"]
+        spec.ifcVersion = ids_dict["@ifcVersion"]
        spec.applicability = boolean_and(parse_rules(ids_dict["applicability"]))
        spec.requirements = boolean_and(parse_rules(ids_dict["requirements"]))
        return spec
@@ -315,7 +320,7 @@ class specification:

            i = ids.ids()
            i.specifications.append(ids.specification(name="Test_Specification"))
-            e = ids.entity.create(name="Test_Name", predefinedtype="Test_PredefinedType")
+            e = ids.entity.create(name="Test_Name", predefinedType="Test_PredefinedType")
            i.specifications[0].add_applicability(e)
        """
        if self.applicability:
@@ -481,23 +486,23 @@ class facet(metaclass=meta_facet):
 class entity(facet):
    """The IDS entity facet currently *with* inheritance"""

-    parameters = ["name", "predefinedtype"]
+    parameters = ["name", "predefinedType"]

    @staticmethod
-    def create(name=None, predefinedtype=None):
+    def create(name=None, predefinedType=None):
        """Create an entity facet that can be added to applicability or requirements of IDS specification.

        :param name: IFC entity name that is required. e.g. IfcWall, defaults to None
        :type name: str, optional
-        :param predefinedtype: name of the predefined type, defaults to None
-        :type predefinedtype: str, optional
+        :param predefinedType: name of the predefined type, defaults to None
+        :type predefinedType: str, optional
        :return: entity object
        :rtype: entity
        """

        inst = entity()
        inst.name = name
-        inst.predefinedtype = predefinedtype
+        inst.predefinedType = predefinedType
        return inst

    def asdict(self):
@@ -507,11 +512,11 @@ class entity(facet):
        :rtype: dict
        """
        fac_dict = {"name": parameter_asdict(self.name)}
-        if "predefinedtype" in self:
-            if self.predefinedtype:
-                fac_dict["predefinedtype"] = parameter_asdict(self.predefinedtype)
+        if "predefinedType" in self:
+            if self.predefinedType:
+                fac_dict["predefinedType"] = parameter_asdict(self.predefinedType)
        # try:
-        #     fac_dict["predefinedtype"] = parameter_asdict(self.predefinedtype)
+        #     fac_dict["predefinedType"] = parameter_asdict(self.predefinedType)
        # except (RecursionError, UnboundLocalError) as e:
        #     print(e)
        return fac_dict
@@ -528,11 +533,11 @@ class entity(facet):
        """

        # @nb with inheritance
-        if self.predefinedtype and hasattr(inst, "PredefinedType"):
-            self.message = "an entity name '%(name)s' of predefined type '%(predefinedtype)s'"
+        if self.predefinedType and hasattr(inst, "PredefinedType"):
+            self.message = "an entity name '%(name)s' of predefined type '%(predefinedType)s'"
            return facet_evaluation(
-                inst.is_a(self.name) and inst.PredefinedType == self.predefinedtype,
-                self.message % {"name": inst.is_a(), "predefinedtype": inst.PredefinedType},
+                inst.is_a(self.name) and inst.PredefinedType == self.predefinedType,
+                self.message % {"name": inst.is_a(), "predefinedType": inst.PredefinedType},
            )
        else:
            self.message = "an entity name '%(name)s'"
@@ -632,22 +637,114 @@ class classification(facet):
            return facet_evaluation(False, "does not have %sclassification reference" % self.location_msg)


+class partOf(facet):
+    """
+    The IDS partOf facet by traversing the _______ inverse attribute
+    """
+
+    parameters = ["entity"]
+    message = "relation as part of %(entity)s"
+    #TODO temp default
+    entity = "IfcElementAssembly"
+
+    @staticmethod
+    #TODO should not assume IfcElementAssembly
+    # def create(entity=None):
+    def create(entity="IfcElementAssembly"):
+        """Create a partOf facet that can be added to applicability or requirements of IDS specification.
+
+        :param entity: Entity that should contain this object. Could be alphanumeric or restriction object, defaults to None
+        :type entity: restriction|alphanumeric, optional
+        :return: partOf object
+        :rtype: partOf
+        """
+
+        inst = partOf()
+        inst.entity = entity
+        return inst
+
+    def asdict(self):
+        """Converts object to a dictionary, adding required attributes.
+
+        :return: Xmlschema compliant dictionary.
+        :rtype: dict
+        """
+        fac_dict = {
+            "@entity": parameter_asdict(self.entity),
+            # "instructions": "SAMPLE_INSTRUCTIONS",
+        }
+        return fac_dict
+
+    def __call__(self, inst, logger):
+        """Validate an ifc instance against that partOf facet.
+
+        :param inst: IFC entity element
+        :type inst: IFC entity
+        :param logger: Logging object
+        :type logger: logging
+        :return: result of the validation as bool and message
+        :rtype: facet_evaluation(bool, str)
+        """
+
+        #TODO handle partOf facet
+
+#         instance_classiciations = inst.HasAssociations
+#         if ifcopenshell.util.element.get_type(inst):
+#             type_classifications = ifcopenshell.util.element.get_type(inst).HasAssociations
+#         else:
+#             type_classifications = ()
+
+#         if self.location == "instance" and instance_classiciations:
+#             associations = instance_classiciations
+#         elif self.location == "type" and type_classifications:
+#             associations = type_classifications
+#         elif self.location == "any" and (instance_classiciations or type_classifications):
+#             associations = instance_classiciations + type_classifications
+#         else:
+#             associations = ()
+
+        refs = []
+#         for association in associations:
+#             if association.is_a("IfcRelAssociatesClassification"):
+#                 cref = association.RelatingClassification
+#                 if hasattr(cref, "ItemReference"):  # IFC2x3
+#                     refs.append((cref.ReferencedSource.Name, cref.ItemReference))
+#                 elif hasattr(cref, "Identification"):  # IFC4
+#                     refs.append((cref.ReferencedSource.Name, cref.Identification))
+
+#         self.location_msg = location[self.location]
+
+        if refs:
+            pass
+            # return facet_evaluation(
+            #     (self.system, self.value) in refs,
+            #     self.message
+            #     % {
+            #         "system": refs[0][0],
+            #         "value": "'" + refs[0][1] + "'",
+            #         "location": self.location_msg,
+            #     },  # what if not first item of refs?
+            # )
+        else:
+            return facet_evaluation(False, "is not a part of %s" % self.node['@entity'])
+
+
 class property(facet):
    """
    The IDS property facet implemented using `ifcopenshell.util.element`
    """

-    parameters = ["name", "propertyset", "value", "location"]
-    message = "%(location)sproperty '%(name)s' in '%(propertyset)s' with a value %(value)s"
+    parameters = ["name", "propertySet", "value", "location"]
+    message = "%(location)sproperty '%(name)s' in '%(propertySet)s' with a value %(value)s"

    @staticmethod
-    def create(location="any", propertyset=None, name=None, value=None):
+    def create(location="any", propertySet=None, name=None, value=None):
        """Create a property facet that can be added to applicability or requirements of IDS specification.

        :param location: Define where to check for the parameter. One of "any"|"instance"|"type", defaults to "any"
        :type location: str, optional
-        :param propertyset: Propertyset that is required. Could be alphanumeric or restriction object, defaults to None
-        :type propertyset: restriction|alphanumeric, optional
+        :param propertySet: Propertyset that is required. Could be alphanumeric or restriction object, defaults to None
+        :type propertySet: restriction|alphanumeric, optional
        :param name: Name that is required. Could be alphanumeric or restriction object, defaults to None
        :type name: restriction|alphanumeric, optional
        :param value: Value that is required. Could be alphanumeric or restriction object, defaults to None
@@ -657,7 +754,7 @@ class property(facet):
        """
        inst = property()
        inst.location = location
-        inst.propertyset = propertyset
+        inst.propertySet = propertySet
        inst.name = name
        inst.value = value
        # cls.attributes = {'@location': location} # 'type', 'instance', 'any'
@@ -673,7 +770,7 @@ class property(facet):
        """
        fac_dict = {
            "@location": self.location,
-            "propertyset": parameter_asdict(self.propertyset),
+            "propertySet": parameter_asdict(self.propertySet),
            "name": parameter_asdict(self.name),
            "value": parameter_asdict(self.value),
            # "instructions": "SAMPLE_INSTRUCTIONS",
@@ -694,8 +791,8 @@ class property(facet):

        # self.location = self.node["@location"]

-        #TODO add documentation that attributes should have "attribute" as propertysets
-        if self.propertyset == "attribute":
+        #TODO add documentation that attributes should have "attribute" as propertySets
+        if self.propertySet == "attribute":
            val = {k.lower(): v for k, v in inst.get_info().items()}.get(self.name, None)
        else:
            # TODO sometimes AttributeError: 'str' object has no attribute 'wrappedValue'
@@ -722,19 +819,19 @@ class property(facet):
            else:
                props = {}

-            pset = props.get(self.propertyset)
+            pset = props.get(self.propertySet)
            val = pset.get(self.name) if pset else None

        self.location_msg = location[self.location]
-        di = {"name": self.name, "propertyset": self.propertyset, "value": "'%s'" % val, "location": self.location_msg}
+        di = {"name": self.name, "propertySet": self.propertySet, "value": "'%s'" % val, "location": self.location_msg}

        if val is not None:
            msg = self.message % di
        else:
            if pset:
-                msg = "does not have %(location)sproperty '%(name)s' in a set '%(propertyset)s'" % di
+                msg = "does not have %(location)sproperty '%(name)s' in a set '%(propertySet)s'" % di
            else:
-                msg = "does not have %(location)sset '%(propertyset)s'" % di
+                msg = "does not have %(location)sset '%(propertySet)s'" % di

        # TODO implement data type comparison
        # xs:string
@@ -826,8 +923,8 @@ class material(facet):
        for rel in material_relations:
            if rel.RelatingMaterial.is_a() == "IfcMaterial":
                materials.append(rel.RelatingMaterial.Name)
-            elif rel.RelatingMaterial.is_a() == "IfcMaterialMaterialList":  # DEPRECATED in IFC4
-                [materials.append(mat.Name) for mat in rel.RelatingMaterial]
+            elif rel.RelatingMaterial.is_a() == "IfcMaterialList":  # DEPRECATED in IFC4
+                [materials.append(mat.Name) for mat in rel.RelatingMaterial.Materials]
            elif rel.RelatingMaterial.is_a() == "IfcMaterialConstituentSet":
                [materials.append(mat.Material.Name) for mat in rel.RelatingMaterial.MaterialConstituents]
            elif rel.RelatingMaterial.is_a() == "IfcMaterialLayerSet":
@@ -911,14 +1008,19 @@ class restriction:
    @staticmethod
    def parse(ids_dict):
        """Parse xml restriction to python object.
-
+  
        :param ids_dict:
        :type ids_dict: dict
        """
        r = restriction()
        if ids_dict:
            # TODO 'base' missing in some IDS?!
-            r.base = ids_dict["@base"][3:]
+            
+            try:
+                r.base = ids_dict["@base"][3:]
+            except KeyError: 
+                r.base = "String"
+
            for n in ids_dict:
                if n == "enumeration":
                    r.type = "enumeration"
@@ -1038,7 +1140,11 @@ class restriction:
                    if eval(str(len(other)) + op):  # TODO eval not safe?
                        result = True
            elif self.type == "pattern":
-                translated_pattern = identities.translate_pattern(self.options)
+                if isinstance(self.options, list):
+                    #TODO handle case with multiple pattern options
+                    translated_pattern = identities.translate_pattern(self.options[0])
+                else:
+                    translated_pattern = identities.translate_pattern(self.options)
                regex_pattern = re.compile(translated_pattern)
                if regex_pattern.fullmatch(other) is not None:
                    result = True
@@ -1,52 +1,46 @@
-<!-- edited with XMLSpy v2021 rel. 3 (x64)  -->
-<!-- Version 0.4.1- July 26, 2021 - DRAFT  -->
-<!-- Most recent version available at: http://standards.buildingsmart.org/IDS  -->
-<xs:schema xmlns:ids="http://standards.buildingsmart.org/IDS" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ns1="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://standards.buildingsmart.org/IDS" elementFormDefault="qualified" attributeFormDefault="unqualified" version="0.4.1">
+<!-- edited with XMLSpy v2022 (x64) (http://www.altova.com) by Leon van Berlo (Overleaf Investments B.V.) -->
+<!-- February 8, 2022 - DRAFT  -->
+<xs:schema xmlns:ids="http://standards.buildingsmart.org/IDS" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://standards.buildingsmart.org/IDS" elementFormDefault="qualified" attributeFormDefault="unqualified" version="0.5.8">
 	<xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/>
 	<xs:import namespace="http://www.w3.org/2001/XMLSchema" schemaLocation="https://www.w3.org/2001/XMLSchema.xsd"/>
 	<xs:import namespace="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.w3.org/2001/XMLSchema-instance"/>
 	<xs:element name="ids">
 		<xs:complexType>
-			<xs:complexContent>
-				<xs:extension base="ids:idsType">
-					<xs:sequence>
-						<xs:element name="info">
-							<xs:complexType>
-								<xs:choice maxOccurs="unbounded">
-									<xs:element name="ifcversion">
-										<xs:simpleType>
-											<xs:restriction base="xs:string">
-												<xs:enumeration value="2.3.0.1"/>
-												<xs:enumeration value="4.0.2.1"/>
-												<xs:enumeration value="4.3.0.0"/>
-											</xs:restriction>
-										</xs:simpleType>
-									</xs:element>
-									<xs:element name="description" type="xs:string" minOccurs="0"/>
-									<xs:element name="author" minOccurs="0">
-										<xs:simpleType>
-											<xs:restriction base="xs:string">
-												<xs:pattern value="[^@]+@[^\.]+\..+"/>
-											</xs:restriction>
-										</xs:simpleType>
-									</xs:element>
-									<xs:element name="copyright" type="xs:string"/>
-									<xs:element name="version" type="xs:decimal"/>
-									<xs:element name="date" type="xs:date"/>
-									<xs:element name="purpose" type="xs:string" minOccurs="0"/>
-									<xs:element name="milestone" type="xs:string" minOccurs="0"/>
-								</xs:choice>
-							</xs:complexType>
-						</xs:element>
-					</xs:sequence>
-				</xs:extension>
-			</xs:complexContent>
+			<xs:sequence>
+				<xs:element name="info">
+					<xs:complexType>
+						<xs:sequence>
+							<xs:element name="title" type="xs:string"/>
+							<xs:element name="copyright" type="xs:string" minOccurs="0"/>
+							<xs:element name="version" type="xs:string" minOccurs="0"/>
+							<xs:element name="description" type="xs:string" minOccurs="0"/>
+							<xs:element name="author" minOccurs="0">
+								<xs:simpleType>
+									<xs:restriction base="xs:string">
+										<xs:pattern value="[^@]+@[^\.]+\..+"/>
+									</xs:restriction>
+								</xs:simpleType>
+							</xs:element>
+							<xs:element name="date" type="xs:date" minOccurs="0"/>
+							<xs:element name="purpose" type="xs:string" minOccurs="0"/>
+							<xs:element name="milestone" type="xs:string" minOccurs="0"/>
+						</xs:sequence>
+					</xs:complexType>
+				</xs:element>
+				<xs:element name="specifications">
+					<xs:complexType>
+						<xs:complexContent>
+							<xs:extension base="ids:specificationsType"/>
+						</xs:complexContent>
+					</xs:complexType>
+				</xs:element>
+			</xs:sequence>
 		</xs:complexType>
 	</xs:element>
 	<xs:complexType name="entityType">
 		<xs:sequence>
 			<xs:element name="name" type="ids:idsValue"/>
-			<xs:element name="predefinedtype" type="ids:idsValue" minOccurs="0"/>
+			<xs:element name="predefinedType" type="ids:idsValue" minOccurs="0"/>
 		</xs:sequence>
 	</xs:complexType>
 	<xs:complexType name="idsValue">
@@ -57,8 +51,8 @@
 		</xs:choice>
 	</xs:complexType>
 	<xs:complexType name="classificationType">
-		<xs:sequence maxOccurs="2">
-			<xs:element name="value" type="ids:idsValue"/>
+		<xs:sequence>
+			<xs:element name="value" type="ids:idsValue" minOccurs="0"/>
 			<xs:element name="system" type="ids:idsValue" minOccurs="0"/>
 		</xs:sequence>
 		<xs:attribute name="location" use="required">
@@ -73,12 +67,77 @@
 	</xs:complexType>
 	<xs:complexType name="applicabilityType">
 		<xs:sequence>
-			<xs:element name="entity" type="ids:entityType"/>
-			<xs:element name="classification" type="ids:classificationType" minOccurs="0"/>
+			<xs:element name="entity" type="ids:entityType" minOccurs="0"/>
+			<xs:element name="classification" type="ids:classificationType" minOccurs="0" maxOccurs="unbounded"/>
+			<xs:element name="attribute" type="ids:attributeType" minOccurs="0" maxOccurs="unbounded"/>
 			<xs:element name="property" minOccurs="0" maxOccurs="unbounded">
 				<xs:complexType>
 					<xs:complexContent>
-						<xs:extension base="ids:propertyType"/>
+						<xs:extension base="ids:propertyType">
+							<xs:attribute name="measure">
+								<xs:annotation>
+									<xs:documentation>See the documentation and default units of these measures on https://github.com/buildingSMART/IDS/wiki/Physical-Quantities-and-Units</xs:documentation>
+								</xs:annotation>
+								<xs:simpleType>
+									<xs:restriction base="xs:string">
+										<xs:enumeration value="String"/>
+										<xs:enumeration value="Number"/>
+										<xs:enumeration value="AmountOfSubstance"/>
+										<xs:enumeration value="AreaDensity"/>
+										<xs:enumeration value="Area"/>
+										<xs:enumeration value="DynamicViscosity"/>
+										<xs:enumeration value="ElectricCapacitance"/>
+										<xs:enumeration value="ElectricCharge"/>
+										<xs:enumeration value="ElectricConductance"/>
+										<xs:enumeration value="ElectricCurrent"/>
+										<xs:enumeration value="ElectricResistance"/>
+										<xs:enumeration value="ElectricVoltage"/>
+										<xs:enumeration value="Energy"/>
+										<xs:enumeration value="Force"/>
+										<xs:enumeration value="Frequency"/>
+										<xs:enumeration value="HeatFluxDensity"/>
+										<xs:enumeration value="Heating"/>
+										<xs:enumeration value="Illuminance"/>
+										<xs:enumeration value="IonConcentration"/>
+										<xs:enumeration value="IsoThermalMoistureCapacity"/>
+										<xs:enumeration value="Length"/>
+										<xs:enumeration value="Speed"/>
+										<xs:enumeration value="LuminousFlux"/>
+										<xs:enumeration value="LuminousIntensity"/>
+										<xs:enumeration value="MassDensity"/>
+										<xs:enumeration value="MassFlowRate"/>
+										<xs:enumeration value="Mass"/>
+										<xs:enumeration value="MassPerLength"/>
+										<xs:enumeration value="ModulusOfElasticity"/>
+										<xs:enumeration value="MoistureDiffusivity"/>
+										<xs:enumeration value="MolecularWeight"/>
+										<xs:enumeration value="MomentOfInertia"/>
+										<xs:enumeration value="PH"/>
+										<xs:enumeration value="PlanarForce"/>
+										<xs:enumeration value="Angle"/>
+										<xs:enumeration value="PlaneAngle"/>
+										<xs:enumeration value="Power"/>
+										<xs:enumeration value="Pressure"/>
+										<xs:enumeration value="RadioActivity"/>
+										<xs:enumeration value="Ratio"/>
+										<xs:enumeration value="RotationalFrequency"/>
+										<xs:enumeration value="SectionModulus"/>
+										<xs:enumeration value="SoundPower"/>
+										<xs:enumeration value="SoundPressure"/>
+										<xs:enumeration value="SpecificHeatCapacity"/>
+										<xs:enumeration value="TemperatureRateOfChange"/>
+										<xs:enumeration value="ThermalConductivity"/>
+										<xs:enumeration value="Temperature"/>
+										<xs:enumeration value="Time"/>
+										<xs:enumeration value="Torque"/>
+										<xs:enumeration value="VaporPermeability"/>
+										<xs:enumeration value="Volume"/>
+										<xs:enumeration value="VolumetricFlowRate"/>
+										<!-- kind of number defined in base of restriction -->
+									</xs:restriction>
+								</xs:simpleType>
+							</xs:attribute>
+						</xs:extension>
 					</xs:complexContent>
 				</xs:complexType>
 			</xs:element>
@@ -100,9 +159,24 @@
 	</xs:complexType>
 	<xs:complexType name="propertyType">
 		<xs:sequence>
-			<xs:element name="propertyset" type="ids:idsValue"/>
+			<xs:element name="propertySet" type="ids:idsValue"/>
 			<xs:element name="name" type="ids:idsValue"/>
-			<xs:element name="value" type="ids:idsValue"/>
+			<xs:element name="value" type="ids:idsValue" minOccurs="0"/>
+		</xs:sequence>
+		<xs:attribute name="location" use="required">
+			<xs:simpleType>
+				<xs:restriction base="xs:string">
+					<xs:enumeration value="type"/>
+					<xs:enumeration value="instance"/>
+					<xs:enumeration value="any"/>
+				</xs:restriction>
+			</xs:simpleType>
+		</xs:attribute>
+	</xs:complexType>
+	<xs:complexType name="attributeType">
+		<xs:sequence>
+			<xs:element name="name" type="ids:idsValue"/>
+			<xs:element name="value" type="ids:idsValue" minOccurs="0"/>
 		</xs:sequence>
 		<xs:attribute name="location" use="required">
 			<xs:simpleType>
@@ -116,7 +190,7 @@
 	</xs:complexType>
 	<xs:complexType name="materialType">
 		<xs:sequence>
-			<xs:element name="value" type="ids:idsValue"/>
+			<xs:element name="value" type="ids:idsValue" minOccurs="0"/>
 		</xs:sequence>
 		<xs:attribute name="location" use="required">
 			<xs:simpleType>
@@ -130,31 +204,76 @@
 	</xs:complexType>
 	<xs:complexType name="requirementsType">
 		<xs:sequence maxOccurs="unbounded">
-			<xs:element name="entity" type="ids:entityType" minOccurs="0">
+			<xs:element name="entity" minOccurs="0">
 				<xs:annotation>
 					<xs:documentation>Make sure 'Name' value of requirements entity is the same as the 'applicability' node, or a wildcard (inclusive pattern).</xs:documentation>
 				</xs:annotation>
+				<xs:complexType>
+					<xs:complexContent>
+						<xs:extension base="ids:entityType">
+							<xs:attribute name="instructions">
+								<xs:annotation>
+									<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+								</xs:annotation>
+							</xs:attribute>
+						</xs:extension>
+					</xs:complexContent>
+				</xs:complexType>
 			</xs:element>
-			<xs:element name="classification" minOccurs="0">
+			<xs:element name="partOf" minOccurs="0" maxOccurs="unbounded">
+				<xs:complexType>
+					<xs:attribute name="entity" use="required">
+						<xs:simpleType>
+							<xs:restriction base="xs:string">
+								<xs:enumeration value="IfcElementAssembly"/>
+								<xs:enumeration value="IfcGroup"/>
+								<xs:enumeration value="IfcSystem"/>
+							</xs:restriction>
+						</xs:simpleType>
+					</xs:attribute>
+				</xs:complexType>
+			</xs:element>
+			<xs:element name="classification" minOccurs="0" maxOccurs="unbounded">
 				<xs:complexType>
 					<xs:complexContent>
 						<xs:extension base="ids:classificationType">
-							<xs:sequence>
-								<xs:element name="instructions" type="xs:string" minOccurs="0">
-									<xs:annotation>
-										<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
-									</xs:annotation>
-								</xs:element>
-							</xs:sequence>
 							<xs:attribute name="uri" type="xs:anyURI" use="optional"/>
 							<xs:attribute name="use" use="optional">
 								<xs:simpleType>
 									<xs:restriction base="xs:string">
-										<xs:enumeration value="required"/>
 										<xs:enumeration value="optional"/>
+										<xs:enumeration value="prohibited"/>
+										<xs:enumeration value="required"/>
 									</xs:restriction>
 								</xs:simpleType>
 							</xs:attribute>
+							<xs:attribute name="instructions">
+								<xs:annotation>
+									<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+								</xs:annotation>
+							</xs:attribute>
+						</xs:extension>
+					</xs:complexContent>
+				</xs:complexType>
+			</xs:element>
+			<xs:element name="attribute" minOccurs="0" maxOccurs="unbounded">
+				<xs:complexType>
+					<xs:complexContent>
+						<xs:extension base="ids:attributeType">
+							<xs:attribute name="use" use="optional">
+								<xs:simpleType>
+									<xs:restriction base="xs:string">
+										<xs:enumeration value="optional"/>
+										<xs:enumeration value="prohibited"/>
+										<xs:enumeration value="required"/>
+									</xs:restriction>
+								</xs:simpleType>
+							</xs:attribute>
+							<xs:attribute name="instructions">
+								<xs:annotation>
+									<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+								</xs:annotation>
+							</xs:attribute>
 						</xs:extension>
 					</xs:complexContent>
 				</xs:complexType>
@@ -163,22 +282,84 @@
 				<xs:complexType>
 					<xs:complexContent>
 						<xs:extension base="ids:propertyType">
-							<xs:sequence>
-								<xs:element name="instructions" type="xs:string" minOccurs="0">
-									<xs:annotation>
-										<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
-									</xs:annotation>
-								</xs:element>
-							</xs:sequence>
 							<xs:attribute name="uri" type="xs:anyURI" use="optional"/>
 							<xs:attribute name="use" use="optional">
 								<xs:simpleType>
 									<xs:restriction base="xs:string">
-										<xs:enumeration value="required"/>
 										<xs:enumeration value="optional"/>
+										<xs:enumeration value="prohibited"/>
+										<xs:enumeration value="required"/>
 									</xs:restriction>
 								</xs:simpleType>
 							</xs:attribute>
+							<xs:attribute name="measure">
+								<xs:annotation>
+									<xs:documentation>See the documentation and default units of these measures on https://github.com/buildingSMART/IDS/wiki/Physical-Quantities-and-Units</xs:documentation>
+								</xs:annotation>
+								<xs:simpleType>
+									<xs:restriction base="xs:string">
+										<xs:enumeration value="String"/>
+										<xs:enumeration value="Number"/>
+										<xs:enumeration value="AmountOfSubstance"/>
+										<xs:enumeration value="AreaDensity"/>
+										<xs:enumeration value="Area"/>
+										<xs:enumeration value="DynamicViscosity"/>
+										<xs:enumeration value="ElectricCapacitance"/>
+										<xs:enumeration value="ElectricCharge"/>
+										<xs:enumeration value="ElectricConductance"/>
+										<xs:enumeration value="ElectricCurrent"/>
+										<xs:enumeration value="ElectricResistance"/>
+										<xs:enumeration value="ElectricVoltage"/>
+										<xs:enumeration value="Energy"/>
+										<xs:enumeration value="Force"/>
+										<xs:enumeration value="Frequency"/>
+										<xs:enumeration value="HeatFluxDensity"/>
+										<xs:enumeration value="Heating"/>
+										<xs:enumeration value="Illuminance"/>
+										<xs:enumeration value="IonConcentration"/>
+										<xs:enumeration value="IsoThermalMoistureCapacity"/>
+										<xs:enumeration value="Length"/>
+										<xs:enumeration value="Speed"/>
+										<xs:enumeration value="LuminousFlux"/>
+										<xs:enumeration value="LuminousIntensity"/>
+										<xs:enumeration value="MassDensity"/>
+										<xs:enumeration value="MassFlowRate"/>
+										<xs:enumeration value="Mass"/>
+										<xs:enumeration value="MassPerLength"/>
+										<xs:enumeration value="ModulusOfElasticity"/>
+										<xs:enumeration value="MoistureDiffusivity"/>
+										<xs:enumeration value="MolecularWeight"/>
+										<xs:enumeration value="MomentOfInertia"/>
+										<xs:enumeration value="PH"/>
+										<xs:enumeration value="PlanarForce"/>
+										<xs:enumeration value="Angle"/>
+										<xs:enumeration value="PlaneAngle"/>
+										<xs:enumeration value="Power"/>
+										<xs:enumeration value="Pressure"/>
+										<xs:enumeration value="RadioActivity"/>
+										<xs:enumeration value="Ratio"/>
+										<xs:enumeration value="RotationalFrequency"/>
+										<xs:enumeration value="SectionModulus"/>
+										<xs:enumeration value="SoundPower"/>
+										<xs:enumeration value="SoundPressure"/>
+										<xs:enumeration value="SpecificHeatCapacity"/>
+										<xs:enumeration value="TemperatureRateOfChange"/>
+										<xs:enumeration value="ThermalConductivity"/>
+										<xs:enumeration value="Temperature"/>
+										<xs:enumeration value="Time"/>
+										<xs:enumeration value="Torque"/>
+										<xs:enumeration value="VaporPermeability"/>
+										<xs:enumeration value="Volume"/>
+										<xs:enumeration value="VolumetricFlowRate"/>
+										<!-- kind of number defined in base of restriction -->
+									</xs:restriction>
+								</xs:simpleType>
+							</xs:attribute>
+							<xs:attribute name="instructions">
+								<xs:annotation>
+									<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+								</xs:annotation>
+							</xs:attribute>
 						</xs:extension>
 					</xs:complexContent>
 				</xs:complexType>
@@ -187,22 +368,21 @@
 				<xs:complexType>
 					<xs:complexContent>
 						<xs:extension base="ids:materialType">
-							<xs:sequence>
-								<xs:element name="instructions" type="xs:string" minOccurs="0">
-									<xs:annotation>
-										<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
-									</xs:annotation>
-								</xs:element>
-							</xs:sequence>
 							<xs:attribute name="uri" type="xs:anyURI" use="optional"/>
 							<xs:attribute name="use" use="optional">
 								<xs:simpleType>
 									<xs:restriction base="xs:string">
-										<xs:enumeration value="required"/>
 										<xs:enumeration value="optional"/>
+										<xs:enumeration value="prohibited"/>
+										<xs:enumeration value="required"/>
 									</xs:restriction>
 								</xs:simpleType>
 							</xs:attribute>
+							<xs:attribute name="instructions">
+								<xs:annotation>
+									<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+								</xs:annotation>
+							</xs:attribute>
 						</xs:extension>
 					</xs:complexContent>
 				</xs:complexType>
@@ -215,16 +395,41 @@
 			<xs:element name="requirements" type="ids:requirementsType"/>
 		</xs:sequence>
 		<xs:attribute name="name" type="xs:string" use="optional"/>
-		<xs:attribute name="necessity" use="required">
+		<xs:attribute name="use" use="required">
 			<xs:simpleType>
 				<xs:restriction base="xs:string">
-					<xs:enumeration value="required"/>
 					<xs:enumeration value="optional"/>
+					<xs:enumeration value="prohibited"/>
+					<xs:enumeration value="required"/>
 				</xs:restriction>
 			</xs:simpleType>
 		</xs:attribute>
+		<xs:attribute name="ifcVersion" use="required">
+			<xs:simpleType>
+				<xs:list>
+					<xs:simpleType>
+						<xs:restriction base="xs:string">
+							<xs:enumeration value="IFC2X3"/>
+							<xs:enumeration value="IFC4"/>
+							<xs:enumeration value="IFC4_3"/>
+						</xs:restriction>
+					</xs:simpleType>
+				</xs:list>
+			</xs:simpleType>
+		</xs:attribute>
+		<xs:attribute name="identifier">
+			<xs:annotation>
+				<xs:documentation>Author of the IDS can provide an identifier to the IDS. Beware: this cannot be enforced/assumed as (global) unique.</xs:documentation>
+			</xs:annotation>
+		</xs:attribute>
+		<xs:attribute name="description" type="xs:string" use="optional"/>
+		<xs:attribute name="instructions">
+			<xs:annotation>
+				<xs:documentation>Author of the IDS can leave instructions for the authors of the IFC. This text could/should be displayed in the BIM/IFC authoring tool.</xs:documentation>
+			</xs:annotation>
+		</xs:attribute>
 	</xs:complexType>
-	<xs:complexType name="idsType">
+	<xs:complexType name="specificationsType">
 		<xs:sequence>
 			<xs:element name="specification" type="ids:specificationType" minOccurs="1" maxOccurs="unbounded"/>
 		</xs:sequence>
@@ -54,20 +54,20 @@ class TestIdsParsing(unittest.TestCase):
        ids_file = ids.ids.open(IDS_URL)
        self.assertEqual(ids_file.specifications[0].requirements.terms[0].node["name"]["simpleValue"], "IfcWall")

-    def test_parse_predefinedtype_facet(self):
+    def test_parse_predefinedType_facet(self):
        IDS_URL = (
-            os.path.join(os.path.dirname(__file__), "Sample-BIM-Files/IDS/", "IDS_Wall_needs_predefinedtype.xml")
+            os.path.join(os.path.dirname(__file__), "Sample-BIM-Files/IDS/", "IDS_Wall_needs_predefinedType.xml")
        )
        ids_file = ids.ids.open(IDS_URL)
        self.assertEqual(
-            ids_file.specifications[0].requirements.terms[0].node["predefinedtype"]["simpleValue"], "CLADDING"
+            ids_file.specifications[0].requirements.terms[0].node["predefinedType"]["simpleValue"], "CLADDING"
        )

    def test_parse_property_facet(self):
        IDS_URL = os.path.join(os.path.dirname(__file__), "Sample-BIM-Files/IDS/", "IDS_Wall_needs_property.xml")
        ids_file = ids.ids.open(IDS_URL)
        self.assertEqual(
-            ids_file.specifications[0].requirements.terms[0].node["propertyset"]["simpleValue"], "Test_PropertySet"
+            ids_file.specifications[0].requirements.terms[0].node["propertySet"]["simpleValue"], "Test_PropertySet"
        )
        self.assertEqual(ids_file.specifications[0].requirements.terms[0].node["name"]["simpleValue"], "Test_Parameter")
        self.assertEqual(ids_file.specifications[0].requirements.terms[0].node["value"]["simpleValue"], "Test_Value")
@@ -141,9 +141,9 @@ class TestIdsAuthoring(unittest.TestCase):
    """Creating basic IDS"""

    def test_entity_create(self):
-        e = ids.entity.create(name="Test_Name", predefinedtype="Test_PredefinedType")
+        e = ids.entity.create(name="Test_Name", predefinedType="Test_PredefinedType")
        self.assertEqual(e.name, "Test_Name")
-        self.assertEqual(e.predefinedtype, "Test_PredefinedType")
+        self.assertEqual(e.predefinedType, "Test_PredefinedType")

    def test_classification_create(self):
        c = ids.classification.create(location="any", value="Test_Value", system="Test_System")
@@ -153,10 +153,10 @@ class TestIdsAuthoring(unittest.TestCase):

    def test_property_create(self):
        p = ids.property.create(
-            location="any", propertyset="Test_PropertySet", name="Test_Parameter", value="Test_Value"
+            location="any", propertySet="Test_PropertySet", name="Test_Parameter", value="Test_Value"
        )
        self.assertEqual(p.location, "any")
-        self.assertEqual(p.propertyset, "Test_PropertySet")
+        self.assertEqual(p.propertySet, "Test_PropertySet")
        self.assertEqual(p.name, "Test_Parameter")
        self.assertEqual(p.value, "Test_Value")

@@ -170,7 +170,7 @@ class TestIdsAuthoring(unittest.TestCase):
        self.assertEqual(s.name, "Test_Specification")

    def test_ids_add_content(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        self.assertEqual(i.specifications[0].name, "Test_Specification")
        m = ids.material.create(location="any", value="Test_Value")
@@ -186,7 +186,7 @@ class TestIdsAuthoring(unittest.TestCase):
    """ Creating IDS with restrictions """

    def test_create_restrictions_enumeration(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(ids.entity.create(name="Test_Name"))
        r = ids.restriction.create(options=["testA", "testB"], type="enumeration", base="string")
@@ -197,11 +197,11 @@ class TestIdsAuthoring(unittest.TestCase):
        self.assertNotEqual(i.specifications[0].requirements.terms[0].value, "testC")

    def test_create_restrictions_bounds(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(ids.entity.create(name="Test_Name"))
        r = ids.restriction.create(options={"minInclusive": 0, "maxExclusive": 10}, type="bounds", base="integer")
-        p = ids.property.create(location="any", propertyset="Test", name="Test", value=r)
+        p = ids.property.create(location="any", propertySet="Test", name="Test", value=r)
        i.specifications[0].add_requirement(p)
        self.assertEqual(i.specifications[0].requirements.terms[0].value, 0)
        self.assertEqual(i.specifications[0].requirements.terms[0].value, 5)
@@ -209,11 +209,11 @@ class TestIdsAuthoring(unittest.TestCase):
        self.assertNotEqual(i.specifications[0].requirements.terms[0].value, 10)

    def test_create_restrictions_pattern_simple(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(ids.entity.create(name="Test_Name"))
        r = ids.restriction.create(options="[A-Z]{2,4}", type="pattern", base="string")
-        p = ids.property.create(location="any", propertyset="Test", name="Test", value=r)
+        p = ids.property.create(location="any", propertySet="Test", name="Test", value=r)
        i.specifications[0].add_requirement(p)
        self.assertEqual(i.specifications[0].requirements.terms[0].value, "XYZ")
        self.assertNotEqual(i.specifications[0].requirements.terms[0].value, "abc")
@@ -221,43 +221,43 @@ class TestIdsAuthoring(unittest.TestCase):
        self.assertNotEqual(i.specifications[0].requirements.terms[0].value, "A")

    def test_create_restrictions_pattern_advanced(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(ids.entity.create(name="Test_Name"))
        r = ids.restriction.create(options="(Wanddurchbruch|Deckendurchbruch).*", type="pattern", base="string")
-        p = ids.property.create(location="any", propertyset="Test", name="Test", value=r)
+        p = ids.property.create(location="any", propertySet="Test", name="Test", value=r)
        i.specifications[0].add_requirement(p)
        self.assertEqual(i.specifications[0].requirements.terms[0].value, "Wanddurchbruch")
        self.assertEqual(i.specifications[0].requirements.terms[0].value, "Deckendurchbruch")
        self.assertNotEqual(i.specifications[0].requirements.terms[0].value, "Deeckendurchbruch")

    def test_create_restrictions_pattern_utf(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(ids.entity.create(name="Test_Name"))
        r = ids.restriction.create(options="èêóòâôæøåążźćęóʑʒʓʔʕʗʘʙʚʛʜʝʞ", type="pattern", base="string")
-        p = ids.property.create(location="any", propertyset="Test", name="Test", value=r)
+        p = ids.property.create(location="any", propertySet="Test", name="Test", value=r)
        i.specifications[0].add_requirement(p)
        self.assertEqual(i.specifications[0].requirements.terms[0].value, "èêóòâôæøåążźćęóʑʒʓʔʕʗʘʙʚʛʜʝʞ")

    """ Saving created IDS to IDS.xml """

    def test_created_ids_to_xml(self):
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
-        e = ids.entity.create(name="Test_Name", predefinedtype="Test_PredefinedType")
+        e = ids.entity.create(name="Test_Name", predefinedType="Test_PredefinedType")
        c = ids.classification.create(location="any", value="Test_Value", system="Test_System")
        m = ids.material.create(location="any", value="Test_Value")
        re = ids.restriction.create(options=["testA", "testB"], type="enumeration", base="string")
        rb = ids.restriction.create(options={"minInclusive": 0, "maxExclusive": 10}, type="bounds", base="integer")
        rp1 = ids.restriction.create(options="[A-Z]{2,4}", type="pattern", base="string")
        rp2 = ids.restriction.create(options="èêóòâôæøåążźćęóʑʒʓʔʕʗʘʙʚʛʜʝʞ", type="pattern", base="string")
-        p1 = ids.property.create(location="any", propertyset="Test_PropertySet", name="Test_Parameter", value=re)
-        p2 = ids.property.create(location="any", propertyset="Test_PropertySet", name="Test_Parameter", value=rb)
-        p3 = ids.property.create(location="any", propertyset="Test_PropertySet", name="Test_Parameter", value=rp1)
-        p4 = ids.property.create(location="any", propertyset="Test_PropertySet", name="Test_Parameter", value=rp2)
+        p1 = ids.property.create(location="any", propertySet="Test_PropertySet", name="Test_Parameter", value=re)
+        p2 = ids.property.create(location="any", propertySet="Test_PropertySet", name="Test_Parameter", value=rb)
+        p3 = ids.property.create(location="any", propertySet="Test_PropertySet", name="Test_Parameter", value=rp1)
+        p4 = ids.property.create(location="any", propertySet="Test_PropertySet", name="Test_Parameter", value=rp2)
        p5 = ids.property.create(
-            location="any", propertyset="Test_PropertySet", name="Test_Parameter", value=[re, rb, rp1]
+            location="any", propertySet="Test_PropertySet", name="Test_Parameter", value=[re, rb, rp1]
        )
        i.specifications[0].add_applicability(e)
        i.specifications[0].add_applicability(m)
@@ -276,12 +276,12 @@ class TestIdsAuthoring(unittest.TestCase):

    def test_create_full_information(self):
        i = ids.ids(
-            ifcversion="2.3.0.1",
+            title="Test IDS",
            description="test",
            author="test@test.com",
            copyright="test",
            version=1.23,
-            creation_date="2021-01-01",
+            date="2021-01-01",
            purpose="test",
            milestone="test",
        )
@@ -302,15 +302,15 @@ class TestIfcValidation(unittest.TestCase):
    def test_validate_all_facets(self):
        #Those are true: 
        e = ids.entity.create(name="IfcWall")
-        p1 = ids.property.create(location="any", propertyset="MySet", name="Param1", value="banan")
-        p2 = ids.property.create(location="any", propertyset="MySet", name="Param2", value=120.0)
-        p3 = ids.property.create(location="any", propertyset="Pset_WallCommon", name="LoadBearing", value=False)
+        p1 = ids.property.create(location="any", propertySet="MySet", name="Param1", value="banan")
+        p2 = ids.property.create(location="any", propertySet="MySet", name="Param2", value=120.0)
+        p3 = ids.property.create(location="any", propertySet="Pset_WallCommon", name="LoadBearing", value=False)
        #Those are false:
-        p4 = ids.property.create(location="any", propertyset="MySet", name="Param1", value="orange")
-        p5 = ids.property.create(location="any", propertyset="MySet", name="Param2", value=123.4)
-        p6 = ids.property.create(location="any", propertyset="Pset_WallCommon", name="LoadBearing", value=True)
+        p4 = ids.property.create(location="any", propertySet="MySet", name="Param1", value="orange")
+        p5 = ids.property.create(location="any", propertySet="MySet", name="Param2", value=123.4)
+        p6 = ids.property.create(location="any", propertySet="Pset_WallCommon", name="LoadBearing", value=True)
        
-        i = ids.ids()
+        i = ids.ids(title="My IDS")
        i.specifications.append(ids.specification(name="Test_Specification"))
        i.specifications[0].add_applicability(e)
        i.specifications[0].add_requirement(p1)