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Collecting and organizing all of the architectural information for a system is a challenge faced by information technology (IT) architects. Transforming that information into models of a viable architecture and keeping associated work products consistent and up to date is an even greater challenge. Despite this, model-centric architectural methods are not as widely adopted or as closely followed as they could be, partly due to a lack of appropriate tools. The Architects' Workbench (AWB) is a prototype tool that addresses these problems and supports the creative process of architectural thinking and modeling. This paper presents key AWB innovations and discusses how their design was motivated by insights into architectural work and feedback from IT architects. We describe the design of AWB itself as a metamodel-driven and methodbased tool, and we report on experience from the use of AWB in production environments.

Before requirements analysis takes place in a business context, business analysis is usually performed. Important concerns emerge during this analysis that need to be captured and communicated to requirements engineers. In this paper, we take the position that tagging is a promising approach for identifying and organizing these concerns. The fact that tags can be attached freely to entities, often with multiple tags attached to the same entity and the same tag attached to multiple entities, leads to multi-dimensional structures that are suitable for representing crosscutting concerns and exploring their relationships. The resulting tag structures can be hardened into classifications that capture and communicate important concerns.

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