SDLC - Maintenance
- Created by: lauren778
- Created on: 13-04-18 10:06
View mindmap
- SDLC
- Maintenance
- Provide technical document(ation) to help the network manager or to help future SW Developers of the new system
- Eg. To edit code in the future
- Provide user document(ation) to help new users with how to operate the functions of the new system
- Possible Maintenance Issues
- Identification of Errors - Bugs as the system has not been fully tested
- Security Issues - Being targeted by viruses or hackers
- Changes in the Business Environment - Downsizing / expansion changing the role of the company
- Changes in Legislation - VAT rates increase or tax deductions from wages change
- Upgrading the System - New technology is available
- Provide technical document(ation) to help the network manager or to help future SW Developers of the new system
- System Maintenance Methods
- Perfective Maintenance
- Improving the performance & efficiency of the SW
- Examples
- Improving access times to data and speed at which reports are produced
- Improve the user interface upon feedback from from users who are finding it more difficult to use than it needs to be
- Corrective Maintenance
- Bugs in the SW which were not discovered during the testing may need correcting
- Examples
- SW may crash when being used with another piece of SW
- SW may crash when used with a particular item of HW
- SW may present a security risk that needs correcting
- Problems with reports not printing out correctly
- Adaptive Maintenance
- SW may need to be changed, owing to the changing needs of the business
- Examples
- SW may need to be altered to be more flexible in supplying the managers with info which was not envisaged at the time of development
- Changes to values such as the percentage rate of VAT or changes to income tax will results in changes to SW
- The organisation expands, so the SW needs to be altered, so that it is able to cope with an increased amount of users
- SW may need to be adapted to work with newly developed OS or HW.
- A new virus threat / hacker that means that the SW will need to be adapted to protect against this
- Perfective Maintenance
- Maintenance
Similar ICT resources:
Teacher recommended
Comments
No comments have yet been made