You can manage product structures using the following effectivities:
Date Effectivity allows you to create structures in which components are effective based on dates. You can create and view date effective structures in Oracle Product Workbench.
Revision Effectivity allows you to create structure in which components are effective based on revisions of the parent item. During the concept & design/development phases of a product, revision effectivity is generally used for configuration management of engineering product structures. Revision effectivity, controls the effectivity of the components relative to its parent item's revision. You can create and view revision effective structure in Oracle Product Workbench. In the Design cycle, users can maintain the Product Structure by Revision Effectivity such that the components of an Assembly can be made effective using revisions of the Assembly. This features allows users to clearly define the components specific to the revision of the parent without having to know the dates of the parent item's revision. For example, Engine has Revisions 001 and 002:
Piston (Engine.001 - Engine.001)
Piston1 (Engine.002 - )
Shaft (Engine.001 - )
This shows that users can phase in/phase out the components by simply giving the revision of the parent.
Attention: Revision Effective structures cannot be defined for manufacturing (released) BOMs, but only for Engineering BOMs or for Items in an Engineering Phase. This is a design time usage feature only and is not supported by Manufacturing, Planning etc. downstream applications.
Note: You can use change control with revision effectivity.
Unit Effectivity allows you to create structures in which components are effective based on Model/Unit Numbers. You can view and edit unit effective structures in Oracle Product Workbench.
Serial Effectivity allow you to create structures in which components are effective based on serial numbers. You can only view serial effective structures in Oracle Product Workbench.