Encyclopedia of Operations Research and Management Science

2001 Edition
| Editors: Saul I. Gass, Carl M. Harris


  • Igor Ushakov
Reference work entry
DOI: https://doi.org/10.1007/1-4020-0611-X_569

Maintenance is the support of successful system operation during long periods of usage by means of: (1) regular or sample check-ups; (2) planned or preventive replacement of the system's units; (3) failure diagnosis; and/or (4) spare units supply. Operations research models for a system maintenance analysis are represented mainly by optimization models for the improvement of system and equipment reliability.

For (1) and (2), one usually uses methods of controlled stochastic processes. For (3), one uses special methods based on mathematical logic, while (4) is considered in the scope of optimal redundancy and inventory control.

Airline industry operations research; Inventory modeling.


  1. [1]
    Ushakov, I.A., ed. (1994). Handbook of Reliability Engineering, Wiley, New York.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Igor Ushakov
    • 1
  1. 1.QUALCOMMSan DiegoUSA