Application module: Group | ISO/TS 10303-1113:2006(E) © ISO |
This clause specifies the EXPRESS schema derived from the mapping table. It uses elements from the common resources or from other application modules and defines the EXPRESS constructs that are specific to this part of ISO 10303.
This clause constitutes the Module Interpreted Module (MIM) of the application module.
This clause also specifies the modifications that apply to the constructs imported from the common resources.
The following restrictions apply to the use, in this schema, of constructs defined in common resources or in application modules:
*)
SCHEMA Group_mim;
USE FROM
group_schema
--
ISO 10303-41
(group,
group_relationship);
USE FROM
management_resources_schema
--
ISO 10303-41
(group_assignment);
USE FROM
basic_attribute_schema
--
ISO 10303-41
(id_attribute,
id_attribute_select);
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
group_schema ISO 10303-41 management_resources_schema ISO 10303-41 basic_attribute_schema ISO 10303-41
NOTE 2 See Annex D, Figures D.1and D.2 for a graphical representation of this schema.
This subclause specifies the MIM type for this application module. The MIM type and definition is specified below.
The groupable_item type is an extensible list of alternate data types. Additional alternate data types are specified in select data types that extend the groupable_item type.
NOTE This empty extensible select requires extension in a further module to ensure that entities that refer to it have at least one valid instantiation.
EXPRESS specification:
*)
TYPE
groupable_item =
EXTENSIBLE
GENERIC_ENTITY
SELECT;
WHERE
WR1: NOT ('GROUP_MIM.GROUP' IN TYPEOF(SELF));
END_TYPE;
(*
Formal propositions:
WR1: A groupable item shall not be a group or any subtype of group.
NOTE Group nesting can be represented using group_relationship.
This subclause specifies the MIM entity for this module. The MIM entity and definition is specified below.
The considered group is specified with the inherited attribute assigned_group. The meaning of the association is specified with the inherited attribute role.
In order to represent the inclusion of elements in a group, the value 'group membership' shall be used for that role.
EXPRESS specification:
*)
ENTITY applied_group_assignment
SUBTYPE OF (group_assignment);
items : SET[1:?] OF groupable_item;
END_ENTITY;
(*
Attribute definitions:
items: the set of one or more instances that are associated with the group referred to by the inherited attribute assigned_group.
*)
END_SCHEMA; -- Group_mim
(*
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