Definition
An Input is a resource, item of information, material, energy or other element used by a Process to produce a defined result.
Human Explanation
An Input is anything a Process needs to begin and perform its work.
Why it Matters
The Quality and availability of Inputs directly affect process quality, performance and repeatability.
Conceptual Boundary
Inputs are not limited to physical materials. They may also include data, requirements, decisions, documents or human resources.
Practical Perspective
Input analysis helps identify sources of errors, delays and Variation in a Process.