Supplementary Warranty Data

  • Wallace R. Blischke
  • M. Rezaul Karim
  • D. N. Prabhakar Murthy
Part of the Springer Series in Reliability Engineering book series (RELIABILITY)


Warranty claims data alone are not adequate for purposes of statistical inference in many cases, including estimation of product reliability, prediction of future claims, costs, and so forth. To address many of these problems, additional data, called “supplementary warranty data,” are required. In this chapter, we focus on the various forms of supplementary warranty data that may provide the additional information needed for inference. The most important additional data needed for estimation and other inferences about product reliability are service times of item that did not fail. These data are censored data. For other purposes, a broader class of supplementary data is needed. This may include data from several different sourcesᾢsome internal (from different units or sections of the manufacturer) and others external. For maximum benefit, the collection and analysis of data must be done in the context of the product life cycle. The chapter discusses the various sources of data, the characterization of the data and the role of data in management of the warranty process.


Supplementary Data Service Agent Product Life Cycle Quality Assurance Scheme Warranty Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Bsharah F, Less M (2000) Requirements and strategies for the retention of automotive product data. Comput Aided Des 32:145ᾢ158CrossRefGoogle Scholar
  2. 2.
    Murthy DNP, Rausand M, Osteras T (2008) Product reliabilityᾢperformance and specifications. Springer, LondonGoogle Scholar
  3. 3.
    Murthy DNP, Jack N (2007) Warranty servicing. In: Kenett F, Faltin FW R (eds) Encyclopedia of statistics in quality and reliability. Ruggeri. Wiley, New YorkGoogle Scholar
  4. 4.
    Yun WY, Murthy DNP, Jack N (2008) Warranty servicing strategies with imperfect repair. Int J Prod Econ 111:159ᾢ169CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  • Wallace R. Blischke
    • 1
  • M. Rezaul Karim
    • 2
  • D. N. Prabhakar Murthy
    • 3
  1. 1.Sherman Oaks, Los AngelesUSA
  2. 2.Department of StatisticsRajshahi UniversityRajshahiBangladesh
  3. 3.School of Mechanical and Mining EngineeringThe University of QueenslandBrisbaneAustralia

Personalised recommendations