Key takeaways
- A maintenance strategy is the set of actions that maximizes asset performance and asset life across the enterprise.
- It must address six elements: availability, reliability, maintainability, safety, security and sustainability.
- Availability measures uptime; reliability measures the probability of failure-free performance. They are not the same.
- Safety protects against random events; security protects against deliberate harm.
- MaintWiz AI CMMS supports the strategy with breakdown response, preventive schedules, predictive integration and analytics.
An enterprise maintenance strategy is the set of administrative, technical and managerial actions applied across an asset's life to maximize its performance and life. A sound strategy addresses six elements: availability, reliability, maintainability, safety, security and sustainability. Each needs a clear definition and a measure before policies, schedules and CMMS workflows are built around it.
Automation and other advances in manufacturing technology have resulted in large sophisticated production systems that can seldom fail. Yet the diverse environmental factors and operating conditions make them susceptible and vulnerable to failures. Enterprise maintenance strategy needs to constantly adapt to meet the challenges posed by the changing technology and evolving corporate goals of a competitive business environment.
A maintenance strategy encompasses the policies and procedures, processes and frameworks, governance, supervisory and operational controls implemented across the enterprise to support the stated business goals.
What six elements must an enterprise maintenance strategy address?
What is availability?
Availability defines the degree to which the equipment is up, operable and ready for use. It is generally measured as the ratio of the uptime to the total time and expressed in percentage. Some definitions, such as inherent availability, exclude planned maintenance time from the denominator.
What is reliability, and how is it different from availability?
Reliability is the ability of equipment to perform without any failure under stated conditions and for a stated period of time. It’s measured by the probability of success. Recurrence and frequency of failures influence the probability and thus impair reliability. Reliability is often improved by design, for example with redundancy for critical systems.
- Availability and reliability are often confused. Availability is a measure of the percentage of time the equipment is up and operational whereas reliability is a measure of the probability of success. In conventional industries like manufacturing where overall uptime is more important and a small failure is acceptable, availability scores over reliability. In mission-critical industries like aircraft and nuclear energy, the risk of failure is catastrophic and reliability is used as the prime indicator.
What is maintainability?
Maintainability is the ease and speed with which equipment can be inspected, serviced and restored after a failure; it is usually measured by Mean Time to Repair (MTTR). It is crucial for the longevity and reliability of equipment, yet assets are hard to maintain without proper monitoring. That’s where condition monitoring comes in. By implementing a condition monitoring system, businesses can continuously track the health of their assets and detect potential issues before they escalate. Condition-based monitoring utilizes data from sensors and other sources to provide real-time insights into asset performance, enabling businesses to optimize maintenance strategies and minimize downtime. MTBF and MTTR metrics can also be used to assess the effectiveness of the condition monitoring system and identify areas for improvement.
What is safety in a maintenance strategy?
Safety pertains to managing all plant operations in such a way as to minimize hazards, risks, accidents and near misses, thereby protecting the people, assets, and environment from getting harm or danger from random events.
What is security, and how is it different from safety?
Security is the state of being free from danger or threat, especially from deliberately planned activities designed to cause harm or danger.
- Safety and security are closely related and thus often jumbled. Safety is protection against random or chance events that may result in personal injury or impact assets and environment negatively. Security is protection against intended or deliberate incidents, perpetrated to cause harm or danger to people, assets, environment or business.
What is sustainability in maintenance?
Sustainability is the endurance of systems and processes to withstand the challenges arising over time and staying relevant. Sustainability is often a balancing act of meeting today’s needs without compromising the well-being of future generations. Thus sustainability often extends beyond the boundaries of business to include environmental protection and corporate social responsibility.
Higher availability, reliability, maintainability, safety, and security of industrial plants should remain the paramount goals of any maintenance strategy. Sustainability ensures a responsible growth and asset management. Achieving these goals supports continuous operations, fewer failures, extended asset life, better operational efficiency, safe and secure conditions for people, assets, and environment.
MaintWiz CMMS helps in implementing the maintenance strategy via systematic breakdown response, well-defined preventive-maintenance-schedules, intelligent machine integration for predictive maintenance and outcome-driven analytics, and support the goals for the six key elements.
MaintWiz Industry 4.0 brings these elements together on one platform. It’s offered as a Software-as-a-Service, with one click maintenance enabled through the native Mobile App.
How are the six elements measured?
A strategy only works when each element has a measure and an owner. The table shows the usual starting point.
| Element | Question it answers | Typical measure |
|---|---|---|
| Availability | How much of the time is the equipment ready to run? | Uptime as a percentage of total time |
| Reliability | How likely is it to run without failure? | Failure frequency, Mean Time Between Failures (MTBF) |
| Maintainability | How fast can it be restored or serviced? | Mean Time to Repair (MTTR) |
| Safety | Are people, assets and the environment protected from random events? | Incidents and near misses |
| Security | Are they protected from deliberate harm? | Access control and security incidents |
| Sustainability | Will the system stay effective and responsible over time? | Asset life, energy and environmental targets |
FAQs
What is an enterprise maintenance strategy?
It is the set of administrative, technical and managerial actions applied during an asset's life to maximize asset performance and life. It covers policies, procedures, processes, governance and the supervisory and operational controls used across the enterprise to support business goals.
What is the difference between availability and reliability?
Availability is the share of time equipment is up and ready for use. Reliability is the probability that it performs without failure for a stated period under stated conditions. Manufacturing usually prioritizes availability; mission-critical industries lean on reliability.
What is the difference between safety and security in maintenance?
Safety protects people, assets and the environment from random or chance events. Security protects them from deliberate, planned acts meant to cause harm. The two are related, so they are often mixed up, but each needs its own controls.
How is maintainability measured?
Maintainability is usually measured by Mean Time to Repair (MTTR): how quickly equipment is restored to service after a failure. Easier access, clear procedures and trained technicians all shorten it. MTBF and MTTR together show whether the strategy is working.
How does a CMMS support a maintenance strategy?
A CMMS turns strategy into daily work. MaintWiz AI CMMS supports systematic breakdown response, defined preventive maintenance schedules, machine integration for predictive maintenance and analytics on outcomes. Rollout takes 4 to 6 weeks, with guided onboarding by our customer success team.
