architectural diagram of programming language

ARCHITECTURAL DIAGRAM OF PROGRAMMING LANGUAGE SOFTWARE

Performance depends largely on the volume and complexity of the inter-component communication and coordination, especially if the components are physically-distributed processes.

Component reusability depends on how strongly coupled components are with other components in the system. Modifiability, for example, depends extensively on the system's modularization, which reflects the encapsulation strategies. First approach to achieving quality attributes: An architecture can either allow or preclude the achievement of most of a system's targeted quality attributes.As such, architectural decisions are the hardest to change, and have the most far-reaching consequences. All downstream design decisions must be consistent with the architectural choices. The selection of components and connections, as well as the allocation of functionality to each component, is a codification of the earliest design decisions about a project. In this case, the importance of an appropriate architecture is magnified across all the projects it will serve.Įmbodiment of earliest design decisions: The architecture represents the first mapping from requirements to computational components. If managed carefully, an entire product family may be produced using a single architecture. An architecture may be re-used on other systems for which it is appropriate.

ARCHITECTURAL DIAGRAM OF PROGRAMMING LANGUAGE SOFTWARE

Once it is made, an architectural decision has an extremely long lifetime and survives even outside of the software that it describes.īlueprint for product line development. Project blueprint: The choice of architectural components is institutionalized in the developing organization's team structure, work assignments, management units, schedule and work breakdown structures, integration plans, test plans, and maintenance processes. Roles include:īasis for communication: Project team members, managers, and customers all turn to the architecture as the basis for understanding the system, its development, and how it works during execution. A formal architecture representation is more likely to be maintained and followed than an informal one, because a formal architecture can more readily be consulted and treated as authoritative, and can more easily be transferred to other projects as a core asset. Architecture and ADLsĪn architecture plays several roles in project development, all of them important, and all of them facilitated by a formal representation of the architecture, such as with an ADL.

Current examples include Rapide, UniCon, ArTek, Wright and Meta-H. Today, ADLs are in a maturing phase, but several exist. Sophisticated ADLs allow for early analysis and feasibility testing of the design decisions.ĪDLs trace their roots to module interconnection languages of the 1970s.

ADLs result from a linguistic approach to the formal representation of architectures, and as such they address the shortcomings of informal representations.

What do the connections mean? Do they mean 'sends data to,' 'sends control to,' 'calls,' 'is a part of,' some combination of these, or something else? What are the mechanisms used to fulfill these relations? What do the components do? How do they behave? What other components do they rely on? What are the components? Do the modules exist only at design-time, or are they compiled together before run time? Are these tasks or processes threaded together from different modules, assembled at compile-time, and do they form run time units? Are they something as nebulous as 'functional areas,' as in data flow diagrams, or something else entirely? Even though such figures often give an intuitive picture of the system's construction, they usually fail to answer such questions as: To date, architectures have largely been represented by informal circle-and-line drawings in which the nature of the components, their properties, the semantics of the connections, and the behavior of the system as a whole are poorly (if at all) defined. An architecture can choose the type of component most appropriate or informative to show, or it can include multiple views of the same system, each illustrating different componentry. Note that a single system is usually composed of more than one type of component: modules, tasks, functions, etc. As architecture becomes a dominating theme in large system development, methods for unambiguously specifying architecture will become indispensable.īy architecture, we mean the components that comprise a system, the behavioral specifications for those components, and the patterns and mechanisms for interactions among them. Architecture description languages (ADLs) are formal languages that can be used to represent the architecture of a software-intensive system.

Architectural diagram of programming language