• Preventative Maintenance
• Corrective Maintenance
• Adaptive Maintenance
• Perfective Maintenance

It can be useful to compare your organisation's applications to similar applications in the ISBSG industry data to establish a benchmark that you can then use as the baseline for your performance improvement initiatives.

Where an organisation is considering an outsourcing arrangement for its maintenance then the ISBSG data provides a useful starting point for negotiations about the key performance indicators expected from the outsource company.

Breakdown of Maintenance and Support Activity Effort Chart

A chart showing Breakdown of Maintenance and Support Activity Effort is available as part of the M&S Subscription service.  It can be used to benchmark your maintenance and support activity effort breakdown.  Based on Applications in the ISBSG M&S Repository, this chart uses the Mean/Average percentage of the effort spent on the various types of maintenance and support activities. In this chart the emphasis is on the breakdown of maintenance effort but the percentage of the time spent on support is also shown.