theory-a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; theories can incorporate facts and laws and tested hypotheses; true in fact and theory.
wikiHow to Write Vendor Contracts. Some companies and organizations partner with vendors to provide a better product or service. Other businesses use vendors as contractors, providing something they need either on a one-time basis or an ongoing schedule. For example, many companies use vendors to supply technology, cleaning services, office equipment, or transportation. Anytime you use a vendor, you and the vendor should both sign a contract.
Subcontract/Subaward Supplier (Vendor) Services Agreement Subawardee services are uniquely designed in response to each project, and not provided commercially. Vendor provides the goods or services commercially Subawardee technical lead is usually a scientific collaborator, or even a co-PI on the Penn project.