During regression testing process, kinds of data can be produced. If we can get useful information from them, it will do good to improve regression testing process. Knowledge elicitation is one of approaches to elicit.But to qualitative data, how to elicit? And to quantitative data, how to elicit?
Data is just data. There is no use for data except within the context of the person viewing it. Different people from different perspectives would want to know different data. A developer would want to know code coverage. A manager may want to know about efficiency. A salesperson/marketing person may want to know about reliability. Each person coming at the data is going to want to know different things.
So your question really is answered with the old addage "It depends"...
Automated Testing Evangelists
Definition expert - noun - Unknown drip under pressure