Definition
The ability of a system, device or process to be maintained or restored to full working order quickly and effectively through maintenance, repair and service activities.
Human Explanation
It describes how easily a solution can be maintained or repaired when a problem occurs.
Why it Matters
Good Maintainability reduces Downtime, lowers maintenance costs and increases Availability.
Conceptual Boundary
Maintainability is not Reliability. Reliability describes how often failures occur, while Maintainability describes how readily they can be corrected.
Practical Perspective
Designing for Maintainability includes accessible components, standardised parts, clear documentation and rapid diagnostics.