E.1 General

This annex documents the history of technical modifications made to ISO/TS 10303-101.

Unless otherwise specified all modifications are upwardly compatible to the previous edition. Modifications to EXPRESS specifications are upwardly compatible if:

• instances encoded according to ISO 10303-21, and that conform to an ISO 10303 application protocol based on the previous edition of this document, also conform to a revision of that application protocol based on this edition of this document;
• interfaces that conform to ISO 10303-22 and to an ISO 10303 application protocol based on the previous edition of this document, also conform to a revision of that application protocol based on this edition of this document;
• the mapping tables of ISO 10303 application protocols based on the previous edition of this document remain valid in a revision of that application protocol based on this edition of this document.

E.2 Changes made in edition 2

E.2.1 Summary of changes

The second edition of this document incorporated the modifications to the first edition listed below.

E.2.2 Changes made to schema draughting_element_schema

The following EXPRESS declarations and interface specifications have been added:

• REFERENCE_FROM geometry_schema;
• REFERENCE_FROM presentation_appearance_schema;
• REFERENCE_FROM presentation_resource_schema;
• TYPE annotation_plane_element;
• TYPE des_invisible_item;
• TYPE plane_or_planar_box;
• ENTITY annotation_plane;
• RULE annotation_curve_subtypes;
• RULE annotation_occurrence_subtypes.

The following EXPRESS declarations and interface specifications have been modified:

• REFERENCE_FROM presentation_definition_schema;
• TYPE draughting_callout_element;
• ENTITY dimension_callout;
• ENTITY dimension_curve;
• ENTITY draughting_callout.

E.3 Changes made in edition 3

E.3.1 Summary of changes

The third edition of this document incorporated the modifications to the second edition listed below.

E.3.2 Changes made to schema draughting_element_schema

The following EXPRESS declarations and interface specifications have been added:

• ENTITY tessellated_annotation_occurrence.

The following EXPRESS declarations and interface specifications have been modified:

• REFERENCE_FROM geometry_schema;
• ENTITY dimension_curve_directed_callout;
• ENTITY projection_directed_callout.

E.4 Changes made in edition 4

E.4.1 Summary of changes

The fourth edition of this document incorporated the modifications to the third edition listed below.

E.4.2 Changes made to schema draughting_element_schema

The following EXPRESS declarations and interface specifications have been added:

• REFERENCE_FROM geometric_model_schema(geometric_set);
• REFERENCE_FROM geometry_schema(axis2_placement);
• REFERENCE_FROM geometry_schema(axis2_placement_2d);
• REFERENCE_FROM geometry_schema(axis2_placement_3d);
• REFERENCE_FROM presentation_definition_schema(annotation_text);
• REFERENCE_FROM presentation_definition_schema(symbol_representation);
• REFERENCE_FROM presentation_organization_schema;
• REFERENCE_FROM product_property_definition_schema;
• REFERENCE_FROM product_property_representation_schema;
• REFERENCE_FROM representation_schema;
• REFERENCE_FROM support_resource_schema(bag_to_set);
• TYPE des_annotation_representation_select;
• TYPE draughting_callout_element;
• TYPE draughting_model_item_association;
• TYPE draughting_model_item_definition;
• TYPE draughting_model_item_select;
• ENTITY draughting_model;
• ENTITY draughting_model_item_association.

The following EXPRESS declarations and interface specifications have been modified:

• TYPE draughting_callout_element;
• TYPE draughting_model_association_select.

E.5 Changes made in edition 5

E.5.1 Summary of changes

The fifth edition of this document incorporated the modifications to the fourth edition listed below.

E.5.2 Changes made to schema draughting_element_schema

E.6 Changes made in edition 6

E.6.1 Summary of changes

This sixth edition of this document incorporates the modifications to the fifth edition listed below.

E.6.2 Changes made to schema drawing_definition_schema

E.6.3 Changes made to schema draughting_element_schema

The following EXPRESS declarations and interface specifications have been added:

• REFERENCE_FROM geometry_schema(cartesian_point);
• REFERENCE_FROM mechanical_design_schema;
• REFERENCE_FROM topology_schema;
• TYPE des_apll_point_select;
• TYPE des_apll_point_symbol;
• ENTITY annotation_placeholder_leader_line;
• ENTITY annotation_placeholder_occurrence_with_leader_line;
• ENTITY annotation_to_annotation_leader_line;
• ENTITY annotation_to_model_leader_line;
• ENTITY apll_point;
• ENTITY apll_point_with_surface;
• ENTITY auxiliary_leader_line.

The following EXPRESS declarations and interface specifications have been modified:

• ENTITY draughting_callout.

The following EXPRESS declarations and interface specifications have been removed:

• SUBTYPE_CONSTRAINT annotation_occurrence_subtypes.

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