Aligning Use Case and Architecture about wot

[sebastiankb]

from today's WG planning session:

• @egekorkan it would be good if there are no 2 documents that talks about the same content. We should also be clear of the purpose of the two documents. Use case description can be placed in a generic intro of the use case chapter.
• @sebastiankb we need to decide how to move on with Architecture (REC track vs Note). Use case in use case document have more details.
• @ashimura we need to decide what is more important for the users. We can revisit if the use case description is still needed in Architecture. Use cases in Architecture are more example-based. Should discuss this in Architecture TF.
• @chachamimm use cases in use case document is owned by stakeholders, this is not provided by the use cases description in the Architecture.