Going by the definition: A blueprint is a reproduction of a technical drawing using a contact print process on light-sensitive sheets. Introduced by Sir John Herschel in 1842, the process allowed rapid and accurate production of an unlimited number of copies, it is a guide for making something — it’s a design or pattern that can be followed.
Although the literal meaning of a blueprint is a paper — which is blue — with plans for a building printed on it. You can also call other guides or plans blueprints. The way you do your homework every night could provide a blueprint for your little sister’s study habits. A business plan is a blueprint for a profitable business. Religions and philosophies provide the blueprint for many people’s lives. A blueprint helps you figure out what to do.