PMBOK (2004 3rd 英) P186 质量规划工具中提到了Prioritization Matrix但是没有具体解释，补充如下

Deciding what is really important from a list of issues can be very difficult, especially if there is no objective data available and the people involved have a difference of opinion about which should be acted upon first. For example, when customers are asking for a list of product enhancements, how do you decide which to implement?

The Prioritization Matrix provides a way of sorting a diverse set of items into an order of importance. It also enables their relative importance to be identified by deriving a numerical value of the importance of each item. Thus an item with a score of 223 is clearly far more important than one with a score of 23, but is not much more important than one with a score of 219.

这有点儿类似风险管理中对风险的影响进行rating从而得出高、中、低风险

http://syque.com/quality_tools/toolbook/Priority/priority.htm

The Prioritization Matrix is used to sort a list of items into an order of importance.

• When to use it: Situations when it is useful.
• How to understand it : Details of how it works.
• Examples : Some examples of usage.
• How to do it : Step-by-step instructions on using it.
• Practical variations : Variants and variation.