Extending the Front-End user module

[Presenter]

Current situation
Although slowly the front End User is evolving as the central point, there are many non integrated modules for functionality within CMS Made Simple.

For instance I want to define functionality for persons:
• That have access to the intranet (Front end users, custom content)
• That receive multiple newsletters (NMS)
• That have access to a closed forum (Forum, already uses FEU)
• etc

Problem
The modules are not very tightly integrated.
So to make one integrated solution for a customer requires additional work

Solution
I would like to define a central person database (Front end user) that can function as the anchor point to which all additional functionality can be related.

For this central person database, I want to be able to define multiple variables:
• Address
• Telephone
• Etc

Related to this central person database I would like to adjust:
• Forum
• NMS

Questions
• Who can make this functionality?
• In a way that it conforms to the core? (If FEU is part of the core)