Software Design Essay Example | Topics and Well Written Essays - 750 words - 1

Software Design - Essay Example is the procedure by which a developer creates a specification of a software objects, anticipated to accomplish objectives, using a set of available components and theme to constraints (Budgen 2003). The Design recognizes the how of the system. It comprises tradeoff analysis based on system requirements. Design quality concerns attributes applicable to ensure sustainability of the system. The attributes analyzed in this paper are concerned with the sustainability of the design. Quality features are similarly applicable to function-based and object-based designs (Rosenblatt 2014). The attributes includes cohesion, adaptability, coupling, understandability and traceability. Cohesion is an assessment of how adequately a component interface within the system. A component should execute a single consistent entity or utility. This attribute is a desirable design constituent attribute as when an alteration has to be completed. It is restricted in a distinct cohesive component. There are a number of levels of cohesion that have been identified; though, not necessary for this paper. This design attributes is not well illustrated (Page-Jones 1999). Experts have encountered a challenge in classifying this attribute as a design component. Inheriting attributes within the design component from super classes makes cohesion as a design attribute weak. In system design, component can be understood when the super-classes also the component are examined. Coupling is a measure of stability or strength of inter-connection among systems components. When it is loosely done then, the component alterations are unlikely to affect other components. Control information or shared variables exchange lead to tight coupling. Loose coupling is achievable when state decentralization (as in objects) is executed and component interfacing through parameters or message passing (Tsui et al. 2014). Coupling allows for inheritance of classes thus facilitate ease of usage as a design attribute in