Chapter 7, Problem 48E

Program Plan Intro

Computer problem-solving process:

The phases that are present in the computer problem-solving process is given below:

• First phase: Analysis and specification phase
  • In this phase, analysis means defining the problem and specification means identifying the problem that users are trying to solve it.
  • The output of this phase defines the problem statement.
• Second phase: Algorithm development phase
  • This phase develops a logical sequence of steps which are used to solve the problem.
  • In this phase, test algorithm is used to check whether a given solution to solve the problem by using the given sequence of steps.
  • The output from this phase is preparing a general solution to the problems that are specified in the analysis and specification phase.
• Third phase: Implementation phase
  • This phase is used to convert the algorithm that is provided by second phase into a programming language.
  • The output of this phase is a working computer program that implements the algorithm that is given by second phase.
• Fourth phase: Maintenance phase
  • This phase is used to maintain the program.
    • If any error occurs in the code, then the user needs to modify the program or the user should give altering recruitments.
    • If error or changes occur in the program, this phase is sent back to first, second or third phase based on the modification.
      • There is no output from this phase rather errors are identified or changes need to be made.