F.1 General

This annex documents the history of technical modifications made to ISO/TS 10303-1797.

F.2 Changes made in edition 2

F.2.1 Summary of changes

This second edition of this part of ISO 10303 incorporates the modifications to the first edition listed below.

F.2.2 Changes made to the ARM

The following ARM EXPRESS declarations and interface specifications have been added:

• TYPE ks_additional_application_domain_enumeration.

The following ARM EXPRESS declarations and interface specifications have been modified:

• ENTITY gear_pair
  WHERE 'WR1' expression changed;
• ENTITY high_order_kinematic_pair
  WHERE 'WR1' expression changed;
• ENTITY linear_flexible_and_pinion_pair
  WHERE 'WR1' expression changed;
• ENTITY linear_flexible_and_planar_curve_pair
  WHERE 'WR2' expression changed;
• ENTITY low_order_kinematic_pair
  • WHERE 'WR1' expression changed;
  • WHERE 'WR2' expression changed.
• ENTITY low_order_kinematic_pair_with_motion_coupling
  WHERE 'WR1' expression changed;
• ENTITY mechanism_representation
  WHERE 'WR1' expression changed;
• ENTITY planar_curve_pair
  WHERE 'WR3' expression changed;
• ENTITY point_on_planar_curve_pair
  WHERE 'WR2' expression changed;
• ENTITY point_on_surface_pair
  WHERE 'WR2' expression changed;
• ENTITY rack_and_pinion_pair
  WHERE 'WR1' expression changed;
• ENTITY screw_pair
  WHERE 'WR1' expression changed;
• ENTITY surface_pair
  WHERE 'WR3' expression changed.

In addition, modifications have been made to the mapping specification, the MIM schema and the EXPRESS-G diagrams to reflect and be consistent with the modifications of the ARM.

F.2.3 Changes made to the mapping

The following changes have been made to the ARM to MIM mapping:

• Geometric_model_relationship mapping updated

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