The ideas and findings in this report should not be construed as an official DoD position. It is published in the interest of scientific and technical information exchange.

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Abstract:Architectural styles have enjoyed widespread popularity in the past few years, and for good reason: they represent the distilled wisdom of many experienced architects and guide less experienced architects in designing their architectures. However, architectural styles employ qualitative reasoning to motivate when and under what conditions they should be used. In this paper we present the concept of an ABAS (Attribute-Based Architectural Style) which includes a set of components and connectors along with their topology, but which adds to this a quality attribute specific model that provides a method of reasoning about the behavior of component types that interact in the defined pattern. We will define ABASs in this paper, show how they are used, and argue for why this extension to the notion of architectural style is an important step toward creating a true engineering discipline of architectural design.

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