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Layered approach to open architecture development

Open Architectures, and the Systems upon which they are based, span a wide variety of trade spaces - modularity vs performance, openness vs intellectual property and coverage vs extensibility among others. One trade space with a profound effect on architecture development and eventual adoption is the initial scope of the architecture itself. Traditional Open Architecture development approaches treat scoping as a search for a point solution on a spectrum that balances the needs of both specific adopting programs and broader Open Architecture communities of interest. In this paper we argue that it is beneficial to re-envision this trade space as a managed series of layered architecture decisions and architecture solutions in order to maximize value for all architecture stakeholders.