The term inputs refers to the resources made available to a program, policy, or curriculum to enable its operation. More precisely, inputs provide the antecedent conditions from which some programmatic activities are to occur and, as a consequence, achieve some predetermined objectives. Put simply, inputs are what get invested to do the work.

Inputs are important to make explicit because they play a limiting function in the implementation program, policy, or curriculum. For instance, the reach of a program is dependent on its inputs, such as the funding allocated to the program, the size of the venue in which the program is delivered, or the availability of program staff with expertise in the area. Without sufficient input, the efficacy and/or the effectiveness of a program may ...