Answer: Software Architecture
Explanation:
Architecture of a software depicts the basic structure of a software system. Software architecture also describes how the structure of a system behaves and creates such structures, where each structure is consists of software components, relations between these components and the characteristics of these components and relations. It gives an abstraction of a system while hiding its implementation details. It provides description about how the elements of a system interact with each other. For example Service Oriented Architecture (SOA) is a software architectural approach in which the different application components provide services to other components over the network. IT is a collection of services that communicate with each other. These services integrate into distinct software systems which belong to different business domains.