Architecture-Based IT Portfolio Valuation

摘要

This paper describes the ingredients of an integrated IT valuation method that uses architectural models as its backbone. First, it investigates the link between the organization's mission and vision and high-level strategy, such as its value center approach and operating model. These strategic choices determine the aspects that need to be taken into account when assessing the value of the IT portfolio. The resulting business requirements can be modeled in conjunction with the enterprise architecture of the organization. This provides concrete insights in the contribution of these elements to the business. KPIs are then associated with business requirements on the one hand and architecture elements on the other hand, and measurement of these KPIs determines the operational performance of the organization and its IT. The paper uses an implementation of Bedell's method as an illustration of this approach.