Designing an information system with given requirements [on hold]

I would appreciate some advice on technology stack to implement an information system with the following requirements:

• Information system backed by a database to help management plan and monitor activities.


• Assess quality of information.


• Provide fine grained access control.


• Reporting abilities (quarterly, annual reports, etc.).


• Provide access to documents in several formats: PDF, MSWord, Excel, etc.


• Flexible database that allows easy changes, insert new information.


• Ability to interface with SAP which is used in the accounting and HR department.

They want to base their technology on Microsoft products though I don't think it is mandatory. Would you use a traditional RDBMS or NoSQL (Document-oriented database)? Would a framework like Sharepoint be appropriate for this?

Any suggestions are appreciated.