Software Architecture

In: Computers and Technology

Submitted By ha418
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Pages 2
Fundamental Design Principles
Separation of concerns
• To prevent overlapping between components of the system, all “concerns” (aspects and mechanisms) of the system should be separate. The codes for each concern should be separated from the other to prevent co-locating. This also prevents interdependency within the system and helps to maintain the system easily.
• This is beneficial in architecture because separation of concerns promotes organization. Each application of a software has a specific code, and separation of these codes leads to an effective and organized layered effect. A software may have business aspects, user interfaces, structure and design codes, etc., there may be more than one application of the software working together. As long as the codes of these mechanisms are separated, there will not be an overlap leading to malfunctioning. Also if each section of a system consists of a specific set of features, going back and modifying or repairing a certain feature is easily done without disturbing other aspects of the system.
Single responsibility principle
• In a software or system, each module should only have one task or responsibility. Responsibilities can also be described as “reasons for change.”
• Each mechanism of the system should only be responsible for one task. Providing multiple tasks for one module can overload that aspect of the system and lead to faults. In an example of opening a browser page, there is a functional aspect and the cosmetic aspect. If the functional aspect is trying to work on something regarding the cosmetic aspects of the browser, then the actual module regarding the looks of the browser may not implement properly because two applications are working on the same things.
• Having only one task assigned to each mechanism allows that specific process to be easily changed.
Principle of least knowledge (Law…...

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