Definitionv1
Tight coupling: a system property where processes happen
Tight coupling: a system property where processes happen fast, sequences are invariant, and there is little slack or buffer between steps, causing failures to propagate automatically through dependent links without time for intervention or correction
Why This Is a Definition
This definition precisely captures what 'tight coupling' means in the context of error cascades by specifying the key characteristics: fast processes, invariant sequences, and minimal slack/buffer. It explains the functional consequence (automatic propagation of failures without intervention time) that makes tight coupling dangerous for error cascades. This distinguishes it from loose coupling and provides the essential operational definition.