The latest thinking in architecture descriptions recommends the concept of architectural views. In object-oriented architectural style, components of a system encapsulate data and operations, which are applied to manipulate the data. In object-oriented architectural style, components of a system encapsulate data and operations, which are applied to manipulate the data. Covers topics like Data-centered architecture, Data-flow architecture, Call and return architectures, Object-oriented architectures, Layered architectures etc. The UML 1.0 specification draft was proposed to the OMG in January 1997. It develops preliminary versions of user documentation. ADLs must support the architecture components, their connections, interfaces, and configurations which are the building block of architecture description. Evolution. This architectural style has two important characteristics, which are listed below. It is also used to model non software systems such as process flows in a manufacturing unit. Two of them are explained below. 2. The use case view has a special significance as it details the high level requirement of a system while other views details — how those requirements are realized. It is used to describe the system from the viewpoint of different stakeholders such as end-users, developers, project managers, and testers. One common example of this architecture is UNIX shell programs. All these stakeholders must also be consulted while reviewing the architectural design in order to minimize the risks and errors. Chapter 11 Slide 9 System structuring Concerned with decomposing the system into interacting sub-systems. In this style, components are represented as. In some cases, the data storeallows the client software to access the data independent of any changes or theactions of other client software. These layers are arranged in a hierarchical manner, each one built upon the one below it. It should have the ability to represent most of the common architectural styles. Describes the flow of control in a system. It defines and documents preliminary test requirements and the schedule for software integration. The architectural design is normally expressed as a block diagram presenting an overview of the system structure. Though the architectural design is the responsibility of developers, some other people like user representatives, systems engineers, hardware engineers, and operations personnel are also involved. 8. Describes inner structure of component including all classes, interfaces of the component, etc. Covers classes in the package and packages within another package. It is a form of expression for use in architecture descriptions and provides the ability to decompose components, combine the components, and define the interfaces of components. UML (Unified Modeling Language) − UML is one of object-oriented solutions used in software modeling and design. Also, a key challenge for designers is to know precisely how to proceed from requirements to architectural design. It should support analytical capabilities or provide quick generating prototype implementations. Each filter works as an independent entity, that is, it is not concerned with the filter which is producing or consuming the data. Information regarding the application domain for the software to be developed. A view is a representation of an entire system from the perspective of a related set of concerns. It does not provide enough support for applications requires user interaction. Chapter 11 Slide 9 System structuring Concerned with decomposing the system into interacting sub-systems.

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