A good idea on to manage POC (Proof Of Concept) is somehow very different and very depend on the project. Having all Project Members sit down together, compiling report from each activities, and get a feedback is a key factor to the project success.

By inviting people from each different background will make it more interesting to compile a report. This is quite different if you have such progress meeting in technical depth.

The first initiative should be the Project Manager who will line out the agenda as follow:-

1-Objective->Scoping->Exclusion
2-Agenda
3-Project Plan
4-Activity Findings
5-Summary
6-Go or No-Go.
7-Project Close/Next Phase.