Summary

Here are some observations and thoughts from the surveys.

• Having a strong requirement process is a necessary condition for success but not a sufficient condition.
• A strong architecture that supports change is necessary for longevity.
• Implementation details, as long as the code is of high quality, are not a governing factor to long term life and success of a system.
• An overlooked requirement or architectural feature could lead to the downfall of a system.
• Having the right people is very important, but having critical features dependent on the performance of a few key individuals may lead to the downfall of the system.