The golden rule to measure the quality of a good requirement is the ‘SMART’ rule. According to this rule a requirement should be:

Specific: The requirement should be specific so that it could be properly documented

Measurable: We should be able to measure the success criteria of the requirement by different parameters

Attainable: The requirement should be possible to attain with the given resources

Relevant: The requirement should be in line with the project’s business case

Timely: The requirement should be posed in time i.e. early in the project life cycle.