In the previous posts in this series, we covered:
- Part I: models of the enterprise and ICT and the need to rationalize the two in order to manage both properly.
- Part II: a four-level enterprise model consisting of strategy, business model, operating model and operational architecture; the need for and value of creating and maintaining the as-is model.
- Part III: the as-is model and its role in the existing EA, planning for transformation and ensuring that the enterprise is equally capable of evaluating changes emanating outside-in and inside-out.