POSC Meta Model Specifications Version 2.3
Logical Data Model
REF_PROJ_METHOD
(Rules)
(Express)
The name and definition of a projection method - the method type.
name
(M, K: string(40))
The name of the projection method.
definition
(M: string(2000))
The definition of the projection method.
source_obj_type
(M:
ref_object
)
The type of object used as a source by this method.
target_obj_type
(M:
ref_object
)
The type of object that is the result or target of this method.
att_col_grp_map
(V: SET[0:?]
att_col_grp_map
(ref_proj_meth))
The attribute column_group mappings that use this type of method. Each ref_proj_method may used by one or more att_col_grp_map.
projection_map
(V: SET[0:?]
projection_map
(ref_proj_meth))
The projection maps that use this type of method. Each ref_proj_method may used by one or more projection_map.
Local rules:
Uniqueness Constraint
name
Entity projects as table
REF_PROJ_METHOD
.
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