单选题 The software architecture of a program or computing system is the structure or structures of the system, which comprise software ______, the externally ______properties of those components, and the relationships between them.The architecture is not the operational software. Rather, it is a ______ that enables a software engineer to: analyze the ______ of the design in meeting its stated requirements, consider architectural alternatives at a stage when making design changes is still relatively easy, and reduce the ______ associated with the construction of the software.

单选题 A. pattern B. models C. metadata D. components

单选题 A. framework B. deliverables C. representation D. semantic models

单选题 A. changeability B. effectiveness C. testability D. functionality

单选题 A. quality B. budget C. schedules D. risks

单选题 A. visible B. reliable C. secure D. robust