BS1192 - Descriptive Layer Standard Reference

The BS1192 - Descriptive layer standard contains the following fields:

Field Name Description
Discipline Identifies the author of the layer by using a single character. For example, A for architect, S for structural engineer. This field is required.
Element Identifies the building element by using a descriptive name for it. For example, possible choices for this field are “Equipment” or “Room.” This field is required.
Graphics Indicates information that is associated with the category by using a single character. For example, D for dimension, G for graphics, T for text. This field is required.
Level Differentiates viewing planes in plan, section, or elevation view by using a two-digit alphanumeric character. For example, 01 would be Level/Floor 1, EA the elevation, and SA Section A. This field is optional.
Status Indicates the state of work by using a single character. For example, N indicates new, R indicates to be removed. This field is optional.
Scale Indicates the level of detail to be shown by using a single character. For example, P indicates a planning level, D indicates a detail. This field is optional.
Phase Indicates phasing or alternatives by using a single character.
User Specifies the user. It is not a fixed width field but is separated from the rest of the layer name with an underscore. For example, A210G701_WALL_L1. This field is optional.

The following table lists the rules for the BS1192 - Descriptive Layer Standard:

Field Optional Width Fixed Wildcard Match Delimiter Default
Discipline No 1 Yes [0A-Z] No None A
Element No 15 No * No - Wall
Graphics No 1 Yes [0ACDGHTZ] No - G
Level Yes 2 Yes [0-9A-Z][0-9A-Z] No None 00
Status Yes 1 Yes [0NXR] No None 0
Scale Yes 1 Yes [0ASPD] No None 0
Phase Yes 1 Yes [0-9A-Z] No None 0