Requirements /business functions definition for a new Intranet: tools and techniques

Hi Community

After building  a business case for SP2013 , my next tasks to ensure I capture the business requirements across the various departments without the need to product  reams of documentation ( which nobody reads anyway!}

My cunning plan (!) is to get the Home site and department template requirements documented ensuring they meet overall corporate aims that are well documented.  Keep a Governance Doc running on going, to ensure I am covering my bases ( sat though John T’s suguk presentation to put the fear of god in me on that one)

I have started uploading a set of project documents into a old SP2010 site some are initial draf others I would like some advice on:

• Requirements for Home and Dept Site templates inc Wireframe modelling: Requirements analysis kit for SharePoint 2010 collaboration site templates.  I haven’t done my wireframes and thinking of trying Balsamiq but would be interested in the opinions of others inc Balsamiq community support for SharePoint 2013 design: http://flucidity.azurewebsites.net/2013/02/sharepoint-2013-balsamiq-mock-up-template/
•  A worksheet listing: Site columns, content type and any parent content types, views. separate sheet for the terms. Educating my users to edit this themselves with some guidance
• TODO: a template for user stories / tests …
• TODO: Scrum / Project man lite tool: Something like https://www.kanbanpad.com/   .( we haven;t  the TFS visualiser before someone mentions this.)
• TODO:  Support / dev tasks management  probably do this in SharePoint lists / project site template  as no TFS

I am trying to avoid downloading and playing with unnecessary tools,  just the ones that will really help me meet my deadlines.

Daniel