Question

What is the system coding ohase of SDLC​

Answer 1

Answer:

Once the design is complete, most of the major decisions about the system have been made. The goal of the coding phase is to translate the design of the system into code in a given programming language. For a given design, the aim of this phase is to implement the design in the best possible manner. The coding phase affects both testing and maintenance profoundly. A well written code reduces the testing and maintenance effort. Since the testing and maintenance cost of software are much higher than the coding cost, the goal of coding should be to reduce the testing and maintenance effort. Hence, during coding the focus should be on developing programs that are easy to write. Simplicity and clarity should be strived for, during the coding phase.

An important concept that helps the understandability of programs is structured programming. The goal of structured programming is to arrange the control flow in the program. That is, program text should be organized as a sequence of statements, and during execution, the statements are executed in the sequence in the program.

For structured programming, a few single-entry-single-exit constructs should be used. These constructs includes selection (if-then-else), and iteration (while - do, repeat - until etc). With these constructs it is possible to construct a program as sequence of single - entry - single - exit constructs. There are many methods available for verifying the code. Some methods are static in nature that is, that is they do not involve execution of the code. Examples of such methods are data flow analysis, code reading, code reviews, testing (a method that involves executing the code, which is used very heavily).

Explanation:

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