There are no specific standards or universal models for license agreement. Basically, a good licensing agreement is one that is cleared to the parties to sign it, and to others who will be interpreting it and applying its terms and conditions to particular circumstances. The agreement should therefore define terms whose meaning maybe unclear which may have had more than one meaning.
Terms such as “authorized user”, “commercial use”, “content”, “interlibrary loan”, “licensed content”, “premises” and “territory” likely require definition. Although the definitions section may seem straightforward when reviewing a license offered to you, take the time to carefully review the way terms of been defined. The way words are defined should meet your needs and expectations. The definition may affect other parts of the agreement, and you always want to ensure that you are licensing content in the matter that works for you. If you have more than one license with the same publisher for different content, you may use different definitions in these license says the definitions may vary based on content.