12 Nov 2019

  • November 12, 2019
  • Amitraj
System Maintenance / Enhancement
Maintenance means restoring something to its original conditions. Enhancement means adding, modifying the code to support the changes in the user specification. System maintenance conforms the system to its original requirements and enhancement adds to system capability by incorporating new requirements.

Thus, maintenance changes the existing system, enhancement adds features to the existing system, and development replaces the existing system. It is an important part of system development that includes the activities which corrects errors in system design and implementation, updates the documents, and tests the data.


Maintenance Types
System maintenance can be classified into three types −

1. Corrective Maintenance − Enables user to carry out the repairing and correcting leftover problems.

2. Adaptive Maintenance − Enables user to replace the functions of the programs.

3. Perfective Maintenance − Enables user to modify or enhance the programs according to the users’ requirements and changing needs.


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