Software architecture in practice unit1 1
- 1. Unit1-1
- 2. 1.The Architecture Business Cycle(ABC) 2.What Is Software Architecture 3.Architectural patterns, Reference models and Reference architectures 4.Architecture structures and views
- 3. 1.1 Where Do Architectures Come From? 1.2 Software Processes and The Architecture Business Cycle 1.3 What Makes a “Good Architecture”?
- 4. Definition The software Architecture of a program or computing system is the structure or structures of the system, which comprise s/w elements, the externally visible properties of those elements, and the relationships among them
- 5. Software architecture is a result of technical, business and social influences. Its existence in turn affects the technical, business and social environments that subsequently influence future architectures. We call this cycle of influences, from the environment to the architecture and back to the environment, the Architecture Business Cycle(ABC)
- 7. Architectures are influenced by -System Stakeholders -the Developer Organization -the background and Experience of the Architects -the technical Environment
- 8. Ramifications of influences on an Architecture
- 9. The architecture affect the factors that influence them
- 10. Architecture Activities Creating the Business Case for the System Understanding the Requirements Creating or selecting the Architecture Communicating the Architecture Analyzing or Evaluating the Architecture Implementing Based on the Architecture Ensuring the Conformance to an Architecture
- 11. Divided into Two Clusters Process recommendations Product(or structural) recommendations
- 12. Definition The software Architecture of a program or computing system is the structure or structures of the system, which comprise s/w elements, the externally visible properties of those elements, and the relationships among them
- 14. Architecture defines s/w elements Systems can and do comprise more than one structure Every computing system with s/w has a s/w architecture The behavior of each element is part of the architecture
- 15. An Architectural Pattern is a description of element and relation types together with a set of constraints on how they may be used. A Reference model is a division of functionality together with data flow between the pieces.
- 16. A Reference Architecture is a reference model mapped onto software elements(that cooperatively implement the functionality defined in the reference model) and the data flows between them.
- 18. Architectural Structures can by and large be divided into 3 groups, depending on the broad nature of the elements they show. Module Structures Component-and-Connector structures Allocation Structures
- 20. Architectural Structures of a System
- 21. Relating Structures to each other Which Structures to choose? Kruchten’s four views follow: -Logical -Process -Development -Physical