1. Software modifications and reliability
ARW2011

2. Software is a major part degrading reliability
Software is major part able to improve reliability

3. Severals steps Collect data on software behaviours
Sort, priorize data and convert in specifications
Process of developpements
Process of information before upgrading
Process of integration, tests & installation
Process post installation

4. questions Timing for update and upgrades ?
How do you define the kind (and depth) of tests ?
Management of softwares interfacing ?
Do you have off-line platforms ?
level of documentation ?
Training of operators, backup solutions ?
Good and bad stories ?

5. naming Patches, update, upgrades, renovation
Software is: code ? O.S. ? Machine ? IT ? control ? Scada ? Middleware ?
Developpers ? Testers ? Integrators ? Users ? Configuration managers ?