12.3 Program Maintainance CIE AS

Carried out following requests for added functionality.​ ​ (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Is the first type of maintenance (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Fixing initial faults. (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Carried out to improve performance.. (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Can be fixed using a trace table or by debugging the program. (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Required when legislation changes. (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Required when technology changes eg a a new OS version (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance

Required when the program does not behave as expected. (a)  

• corrective maintenance
• adaptive maintenance
• perfective maintenance