Change Management on an Isogen isometric drawing refers to the fact that the same information needs to display on the same sheet of an isometric drawing each time you extract the drawing. Enabling Change Management allows you to keep the overall drawing consistent in two ways:
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It maintains the same information per drawing sheet whenever possible.
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It prevents impact to other drawing sheets.
For example, a valve should not move from Sheet 1 to Sheet 2 in a piping isometric drawing simply because you added an olet to a pipe output to that same sheet. If the valve originally displayed on Sheet 1, it should always display on Sheet 1. However, if you add a gate valve and the MTO on Sheet 1 is full, the software adds a new sheet called Sheet 1A. This way the gate valve is still on Sheet 1, but the MTO is not overcrowded.
Also, when Smart 3D.Drawing Creation.Overview.Change Management is enabled, you should not modify the part numbers on the isometric drawing between updates. For example, assume that you placed a gate valve and updated the isometric drawing with Change Management enabled. The part number in the MTO might be 3 for the gate valve. Now, if you insert another gate valve on the pipeline and update the isometric drawing again, the old gate valve still has a part number of 3 and the new inserted gate valve has a part number of 4. This also applies to label callouts on the isometric drawing itself.
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This functionality is applicable only to piping isometric drawings.
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You can override the Smart3D.Drawing Creation.Overview.Change Management Enabled option in the Isometric style by changing the drawing document Change Management property setting. See Style Tab (Properties Dialog).
Spool number consistency
Spool data is generated in the Piping task and stored in the model database. Therefore, spool numbers remain constant even if you re-extract a drawing.
If the In Situ spooling is active, the spool numbers could change depending on the types of changes
that occurred in the model and/or settings in the spooling rules.
Weld number consistency
Weld number data is generated in the Piping task and stored in the model database. Therefore, weld numbers should not change even if you re-extract the drawing.
Material part number consistency
Material part numbers in an MTO are driven by a label that, by default, looks for the SequenceID property of the part. One of the main purposes of Change Management is to have consistent part numbers on the MTO. This also applies to label call-outs for the Part number. However, Change Management does not affect your ability to apply another label, for example, to a gate valve.
Component data continuity
Any piping parts, components, instruments, or engineered items displaying on a given sheet do not change. If you re-extract the drawing, the components remain on the same drawing sheet. The same is true for the parts inclusion in a material list.
Weld data continuity
Welds display on a specific sheet on a piping isometric drawing. If you re-extract the drawing, the welds do not change sheets. The same is true for the weld list.
Spool representation continuity
Spools displaying on a given drawing sheet do not change when you re-extract the drawing unless a new spool is added or an existing spool is deleted. The software handles additions and deletions implicitly by the material (parts and components) managed on the drawing; however, the software also maintains spool integrity. For example, if one part is moved to another drawing sheet and the spool displayed is active, the entire spool moves with the part.
Material List continuity
Each drawing sheet has its own material list. The items on the list correspond to those shown in the drawing. When you re-extract a drawing, the material list for any given component remains constant. For example, the schematic drawing on which a given commodity displays and the material list that includes that commodity always display on the same drawing sheet.
User-defined isometric break points
If you select Smart3D.Drawing Creation.Overview.Change Management Enabled, the software ignores all user-defined isometric break points. Only the sheet breaks from a previous extraction of the drawing is used for change management. If isometric break points are added or deleted from the model after change management is enabled, there is no impact on revised isometric drawings.
If change management is turned off (the option is not selected), the software honors the isometric break points.
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