Confidence Intervals for the Reliability of a Future System Configuration.

Abstract

An inferential procedure is presented which provides confidence intervals for a future reliability parameter when reliability growth testing is only partially completed. Hypothesis tests based on this method are uniformly most powerful unbiased. These results are applicable if (1) the system failure rate can be modeled as the intensity function of a Weibull process; and (2) efforts to improve reliability are assumed to continue at a steady rate throughout the intervening period of testing. The usefulness of this methodology is illustrated by evaluating the risk of not reaching some future reliability milestone. If such risk is unacceptably high, program management may have time to identify problem areas and take corrective action before testing has ended. As a consequence, a more reliable system may be developed without incurring overruns in the scheduling or cost of the development program. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA105031

Entities

People

  • Grady W. Miller

Organizations

  • United States Army Materiel Systems Analysis Activity

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Classification
  • Defense Systems
  • Equations
  • Estimators
  • Information Exchange
  • Intensity
  • Intervals
  • Logistics Management
  • Models
  • New York
  • Operations Research
  • Program Management
  • Random Variables
  • Reliability
  • Risk
  • Systems Analysis

Readers

  • Computational Modeling and Simulation
  • Statistical inference.
  • Systems Analysis and Design