HR is being looked as a key business function and no more a support function, responsible for delivering its contribution towards achieving business results. Presenting here my comprehensions of different facets of HR.
Its almost a prerequisite to ask "Why" we are doing " What" we are doing. This way we define 'value' to be delivered before we plan execution. So this value proposition starts with why followed by what & how. The last column gives expected business benefit out of what we do and how we do it.
Let me have your feedback to enhance it further.