Skills Framework in an Information Age

One task in people resources in trying to get the right skills mix, both in expertise and maturity. A good IT department has pathways for promotion and gaining new skills. It contains the right proportion of strategic, tactical and operational skills. This requires attention to recruitment, training, promotion and deployment. The Skills Framework for an Information Age (SFIA) is a maturity framework which has been developed to help companies get their skillset right.

Tasks
Describe SFIA, its categories and maturity levels. Note that there are many skills that address strategy, service and customers and not so many concerning development and programming. How does it work? What is its history? What problems does it help an IT manager deal with? Find a case study of SFIA being used.What are its limitations? How might it be improved?