Under the present invention, components of an enterprise architecture are first identified. This process not only involves hardware, software and topographic identification, but also includes developing and documenting an understanding of the business processes occurring within the enterprise architecture. Based on this analysis, an enterprise architecture profile is developed. Thereafter, transactions that occur within the enterprise architecture are identified, and data related thereto is collected for different geographic regions. In general, a transaction involves a set (e.g., one or more) of steps (e.g., "clicks") within an application of the enterprise architecture. For each such step, data is collected. Based on the data collection one or more transaction class profiles are developed. Using these profile(s) and the enterprise architecture profile, transaction response time(s) can be estimated.