Ask Great Questions — “When testing people in front of the computer screen, you need to guide them in some way through the process. The usability goals need to be operationalized in order to check if the product meets them. Operationalization means to take an abstract goal and describe it in terms that can be measured and observed.”

Good word: operationalized.  

It is critically important to ask the right questions because that’s how you get the right answers. You have to know what you want to get; what are your goals. Questions follow those goals you’ve set. Then bam, get what you need.