Term Kind Topic What it is
Binding Constraint Limiting Stage, Active Constraint concept Constraint Thinking The one resource in a chain whose capacity sets the throughput of the whole chain - so that investment anywhere else buys idle capacity rather than output.
Constraint Thinking practice Constraint Thinking Designing within the real limits — budget, skills, timeline, existing estate, organisational politics — rather than for the abstractly best answer.
Theory of Constraints concept Constraint Thinking The principle that a system's throughput is set by a single binding constraint, so improvement anywhere else produces nothing.