What are the functionality of MPD and Component List?

Dear All,

I have read all the documents available at help.sap but still have some confusion.

Upto my understanding:

MPD (Maintenance Program Definition)

MPD stores documents provided by OEM and these documents can be utilized and validate via DMS module.

MPD only supports Multiple counter plans and we can attach document in the task lists for these plans.

My question is

Is there any other functionality / information available for MPD?

Component List in Log book

Component list is attached on notification to help us to plan to install, remove, replace components in equipment structure. The components relevant information is viewed its individual status that is maintained in component list.

My queries are

Component list is the part of master data and same as Equipment BOM that can be opened in notification just like we open, assign and view equipment BOM in maintenance order components tab?

Should we create new component list, Whenever we create notification and we require material to be replace, install, remove etc.?

what is its actual use?

Regards,