SOFTWARE MAINTENANCE

                                                    SOFTWARE MAINTENANCE

• Software Maintenance is the process of modifying a software product after it has been delivered to the customer. 


• Corrective maintenance deals with the repair of faults or defects found in day-system function.


• Adaptive maintenance is the implementation of changes in a part of the system, which has been affected by a change that occurred in some other part of the system. 


• Perfective maintenance involves making functional enhancements to the system in addition to the activities to increase the system's performance even when the changes have the occurrence of errors. 


• Change Control is the process that a company uses to documents, identify and authorize changes control is the process that a company uses to document, identify and authorize changes to an IT environment. 


• The configuration of an information system and its components has a direct impact on the security posture of the system. 


• The capability Maturity Model is a methodology used to develop and refine an organization's software development process.

Keywords:

PCR    -    Project Change Request

ECC    -    Effective Change Control

SCM    -    Security Configuration Management

CMM    -    Capability Maturity Model