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Tuesday, July 6, 2010

“Explain Linear Sequential Model.” It is the question of SMU MBA MI0024 for Software Engineering. Students of Information System (IS) of Sikkim Manipal University MBA MI0024 can write the assignment. There are some other MI0024 MBA assignments also such as - software process and different models and 4GL Technologies.

The linear sequential model suggests a systematic, sequential approach to software development. It begins at the system level and progress through analysis, design, coding, testing and support. Modeled after a conventional engineering cycle, the linear sequential model encompasses the following activities:

System/information engineering and modeling: Because software is always part of a larger system (or business), work begins by establishing requirements for all system elements and then allocating some subset of these requirements to software. This system view is essential when software must interact with other elements such as hardware, people and databases.

Software requirements analysis: The requirements gathering process is intensified and focused specifically on software. To understand the nature of the program(s) to be built, the software engineer (“analyst”) must understand the information domain for the software, as well as required function, behavior, performance and interface.

Design: Software design is actually a multistep process that focuses on four distinct attributes of a program: data structure, software architecture, interface representations and procedural detail. The design process translates requirements into a representation of the software that can be assessed for quality before coding begins.

Code generation: The design must be translated into a machine-readable form. The code generation step performs this task.

Testing: Once the code has been generated, program testing begins. The testing process focuses on the logical internals of the software, ensuring that all statements have been tested and on the functional externals, that is, conducting tests to uncover errors and ensure that defined input will produce actual results that agree with the required results.

Support: Software will undoubtedly undergo change after it is delivered to the customer. Change will occur because errors have been encountered, because the software must be adapted to accommodate changes in its external environment or because the customer requires functional or performance enhancements.

The linear sequential model requires his and has difficult accommodating the natural uncertainty that exists at the beginning of many projects.


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