● An architectural style. defines as a family of such systems in terms of a （71） of structural organization. More specifically, an architectural style. defines a vocabulary of （72）and connector types, and a set of （73） on how they can be combined. For many styles themay also exist one or more （74） that specify how to determine a system’s overall propertfrom the properties of its parts. Many of architectural styles have been developed over the yearThe best-known examples of （75） architectures are programs written in the Unix shell. （71） A. pattern B. data flow C. business process D. position level （72） A. metadata B. components C. models D. entities （73） A. functions B. code segments C. interfaces D. constraints （74） A. semantic models B. weak entities C. data schemas D. business models （75） A. event-based B. object-oriented C. pipe-and-filter D. layered