The term “grade” represents a level or ranking system which can be used to differentiate between items that serve the same essential function, but possess different attributes which result in different standards of quality output. Higher graded items may be capable of more sophisticated, arduous, or advanced tasks, while lower graded items may be more suited for lower-end, or less labor intensive chores. Examples of items which can be assigned grades can be found everywhere. One example can be found on nearly every office desk in the United States, and that would be a stapler. Most of these are a low grade, multi-purpose staplers that are meant to bind no more than approximately 25 pages, and in most cases, can effectively bind as few as 10 to 15. However, premium grade staplers exist that can bind 50 to 100 sheets at a time or more. These are often found in print shops or other industry establishments in which large-scale bindery is common.
This term is defined in the 3rd and the 4th edition of the PMBOK.