| Feature | Predictive Maintenance (PdM) | Preventive Maintenance (PM) | 
 
  | Approach | Condition-based maintenance, performed as needed based on equipment condition. | Time-based or usage-based maintenance, performed at regular intervals. | 
 
  | Cost Efficiency | High; reduces unnecessary maintenance, leading to savings on labor and materials. | Lower; can lead to over-maintenance and unnecessary costs. | 
 
  | Downtime | Minimized; maintenance is performed just before failure is likely, reducing unplanned downtime. | Reduced; regular maintenance can prevent some failures but may not be as effective as PdM. | 
 
  | Equipment Lifespan | Extended; precise condition monitoring can prevent minor issues from becoming major. | Potentially extended; however, the risk of over-maintenance can negatively affect equipment lifespan. | 
 
  | Safety | Improved; early detection of potential failures can enhance workplace safety. | Moderate; regular maintenance reduces some risks, but may not catch all potential failures. | 
 
  | Data-Driven Decisions | Enabled; uses data analytics and monitoring for informed maintenance decisions. | Limited; decisions are based on general schedules, not specific equipment condition. | 
 
  | Resource Utilization | Optimized; resources are used efficiently as maintenance is performed based on actual need. | Less optimized; resources may be used for maintenance that isn't currently necessary. |