specifications
n. countablen. a detailed list of requirements or instructions for how something should be built or done. You check these to make sure a product has the exact features you need.
n. a detailed description of the design, materials, and dimensions required for a piece of work or a product. Often used in the plural to refer to the technical standards a project must meet.
The new laptop meets all my technical specifications.
Before we start building the engine, we must review the safety specifications provided by the engineering team.
The architect revised the structural specifications to ensure the building could withstand the seismic activity common in the region without exceeding the client's strict budget.
Commonly used in the plural form ('specifications') or the shortened informal version 'specs'.