Soft Goal (Paperback)

High Quality Content by WIKIPEDIA articles! In ice hockey, a soft goal can also refer to a goal that is the result of a weak effort, or none at all, and should have been a routine save. Non-functional requirements are global qualities of a software system, such as flexibility, maintainability, usability, and so forth. Such requirements are usually stated only informally; and they are often controversial. They are also often difficult to validate. Normally a goal is a very strict and clear logical criterion. It is satisfied when all sub-goals are satisfied. But in non-functional requirements you often need more loosely defined criteria, like satisficeable or unsatisficeable.