What is the use of component without VOB (Clearcase UCM)?

Question

I was told to create component in UCM.

How would you explain a difference between component and VOB to a beginner?

Also It asks two option.

Compone

Answer 1

I don't think the question is answered. VonC described two types of VOBs can be created, a single component VOB and multi-component VOB, to store the files. The question however is asking what's the use of creating a component w/o a VOB, one of the options when you create a component.

This type of rootless components are normally used to store the composite baseline. I am not aware of other usages.

I found this post because today I got an issue with my IIB projects. When loading dependency projects from another component, IIB toolkit will complain the dependency project is not from the same root directory (due to from different components in CC). This is really an IIB toolkit issue, but I am looking for a way to resolve this from CC.