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A complete architectural specification of an information technology (IT) system includes information about how it is partitioned and how the parts are interrelated. It also contains information about what it should do and the purpose it must serve in the business. This paper provides a set of business concepts that partition the world of business meaning. It discusses the purpose of such an architectural view of business and ways in which it can be used. A set of generic concepts and their interrelationships organize business information content in terms of requirements on the business, the boundary of the business, and the business as a system for delivery of value. Methods are introduced to explore variations on the basic business concept patterns. These concepts are positioned to describe IT systems that support the business, and they are used to manage the work of IT system development and deployment.
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