Asset Strategy Library

Take the guesswork out of maintenance strategy development using the world's largest content source.

The Asset Strategy Library (ASL) is the most comprehensive library of asset strategies and their technical basis for industrial equipment.

Optimal maintenance strategies are the key to remaining profitable

Perform key maintenance tasks before something bad happens.

ASL-R21 includes 724 Universal Equipment Types:

  • 51,500 Degradation Mechanisms (FMEA rows) (71 per type)
  • 4,500 PM Tasks and Intervals (PM Templates) (6 per type)
  • 156,000 As Found Reportable Conditions (215 per type)
  • (724 types) * (2 experts/type) * (20 years/expert) ~ 29,000+man-years of experience!
  • $10M invested, according to EPRI


Make better decisions that protect your assets.

Manage your equipment strategies anywhere - on our web-based planning platform.

Using content from the ASL, Preventance analyzes preventive maintenance (PM) plans down to a task and interval level, based on the equipment type, its functional importance, and operating context (duty cycle and service conditions).

  • develop a maintenance strategy
  • analyze alternatives to improve existing plans
  • estimate costs and benefits before implemntation
Contact Us

Our leadership

Dr. David H. Worledge

Chief Scientist/Founder

David Worledge, Chief Scientist of Asset Performance Technologies, received his Ph.D. in nuclear physics in 1970. After research at national labs in France, England, and the US, he worked on nuclear plant design at the UK Atomic Energy Authority, and spent 14 years as a program manager at the Electric Power Research Institute (EPRI). He brings to APT 35 years of experience in plant risk assessment, systems reliability analysis, and maintenance technology development. As a consultant and entrepreneur, he developed the Preventance concept, models, and software for optimizing reliability and maintenance costs at industrial plants and, along with Glenn Hinchcliffe, had earlier developed EPRI’s Preventive Maintenance Basis Database. David has chaired IAEA committees, consulted for the USNRC and US National Labs, and published more than 120 professional papers and conference contributions. His research products are in use at most US nuclear plants and others world-wide.

Glenn R. Hinchcliffe

PE, CMRP, Chief Engineer/Founder

Glenn R. Hinchcliffe, APT’s Chief Engineer, is a recognized contributor to the application of reliability to maintenance optimization practices, and co-author of one of the premier texts on reliability centered maintenance - “RCM - Gateway to World Class Maintenance”. Along with Dr. David Worledge, has developed the EPRI Preventive Maintenance Basis Database and APT’s strategic analysis software, Preventance. Glenn resides with his wife in Corrales, New Mexico, is a registered Professional Engineer, as well as holding a Certified Maintenance and Reliability Professional certificate. Mr. Hinchcliffe’s life accomplishments have been recognized by the National Registry of "Who's Who".

Mark S. Benak


Mark Benak is a technologist, entrepreneur, and angel investor with over 25 years of experience. He also serves as Board Advisor to the Los Poblanos Historic Inn and Organic Farm and served as Chairman for Incitor (now xF Technologies), a novel developer of synthetic enzymes for biofuels. Mark co-founded InLight Solutions, developing optical solutions for Life Sciences problems. Previously, he was a staff scientist with the institute for fluid mechanics (LSTM) at the University of Erlangen-Nuernberg and a research engineer with the Daimler-Benz AG in Stuttgart. Mark received his B.S. and M.S. degrees in Mechanical Engineering from Stanford University.

About us

Asset Performance Technologies, Inc. is the company that Plant Managers, CFOs, and maintenance professionals count on to make the most of their PM dollars.

Our revolutionary Preventance maintenance solution combines unique optimization software with the APT Asset Strategy Library (ASL) to rapidly optimize any PM program.

Preventance sets the standard for PM Optimization by dynamically adjusting to changing operating conditions, plant requirements, and market economics.

400 Gold Ave SW
Suite 650
Albuquerque, NM 87102



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