POSC Specifications: Epicentre Version 3.0 | Relational Implementation |
A 3D grid that provides an indexing system but carries no topological information. The construction information defined for this grid contains all of the connectivity for the nodes, edges, faces and cells that make up the grid.
- instance_s (PK, M: CHAR VARYING(19))
- Surrogate key of the table.
- identifier (M: CHAR VARYING(80))
- grid_or_mesh.identifier
The name or identifier of this grid.
- instance_create_date (O: TIMESTAMP)
- e_and_p_data.instance_create_date
This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance.
- last_updated (O: TIMESTAMP)
- e_and_p_data.last_updated
This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships).
- description (O: CHAR VARYING(2000))
- e_and_p_data.description
A remark or comment about the instance.
- instance_creator (O: CHAR VARYING(80))
- e_and_p_data.instance_creator
This is the person, company or application that created this instance. This identifies the party responsible for loading this instance.
- last_updated_by (O: CHAR VARYING(80))
- e_and_p_data.last_updated_by
This records the person or application making the update to this instance.
- source (O: CHAR VARYING(80))
- e_and_p_data.source
The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC".
- topology_sl (O: CHAR VARYING(16))
- grid_unstructured.topology
A grid topology for unstructured, cell-centered 3D grids.
Table is related to: data_collection_content, derived_interest_makeup, document_specification_part, @graphical_element, object_activity_involvement
Primary Key Constraint on: INSTANCE_S
Fully implemented Unique Constraint on: IDENTIFIER
Generated on Tue Jul 10 16:36:40 2001
© Copyright 2001 POSC. All rights reserved.