Additional Windchill Capabilities > Manufacturing Process Management > Transforming an eBOM into an mBOM > Maintaining an mBOM > Managed Collections in MPMLink
  
Managed Collections in MPMLink
Managed Collections in MPMLink provides the ability to work on a trimmed BOM structure. A managed collection is an organized set of objects that is managed as a cohesive group. You can create and manage a managed collection in Manufacturing Associative Part Structure Browser (MAPSB) and the Folder Contents table. The BOM structure is trimmed or altered based on the objects collected and the collection options that are configured in a managed collection. For more information, see Managed Collections.
Consider the following scenario:
As a manufacturing engineer, you are assigned to work on the engine subassembly of a car. From the entire BOM structure of the car, it will help to work on a trimmed structure, in this case, the engine subassembly. To do so, you can organize the set of objects that are associated only with the engine in a managed collection. Specify car as the context and create a collection of parts that make up the engine subassembly.
When working on a managed collection in MAPSB in upstream or downstream, for a given collection of objects in upstream, the downstream displays the equivalent objects and its child parts, and vice versa.