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2003 Use of Bayesian Techniques for Reliability
World of statistics is traditionally divided into two mutually exclusive camps: Classical and Bayesian. We present the Bayesian approach and some applications to reliability, leaving the subjective...
2004 Understanding Series and Parallel Systems Reliability
For engineers to understand the statistical reasoning behind reliability block formulas for series and parallel systems and provide examples of the practical ways of using them. This knowledge will...
2012 Understanding Exponential Sequential Tests
The actual sample size "n" required in testing and confidence interval (CI) derivation is of tremendous importance for practitioners. For example, sample size carries with it a price tag in time,...
2004 Understanding Binomial Sequential Testing
This START sheet addresses double sampling plans and higher dimension sampling plans, namely sequential tests. Numerical and practical examples of sequential tests for attributes (pass/fail) data...
2004 The RMQSI Case - A Reasoned, Auditable Argument Supporting the Contention that a System Satisfies its RMQSI Requirements
Today's customers demand reliable products. Obviously, such demands must be reflected in the product specification and requirements. Historically RMQSI methods have depended upon the availability of...
2003 The Chi-Square: a Large-Sample Goodness of Fit Test
Most statistical methods (of parametric statistics) assume an underlying distribution in the derivation of their results. There are two approaches to checking distribution assumptions. One is via...
2003 The Applicability of Markov Analysis Methods to Reliability, Maintainability, and Safety
Markov models and Markov analysis methods were relegated to that list of exotic but rarely used stochastic modeling techniques, at least for reliability and maintainability purposes.
2006 System of Systems Systems Engineering Guide: Considerations for Systems Engineering in a System of Systems Environment
In order to best support the warfighter in military operations and to provide efficient support and readiness in peacetime, the Department of Defense (DoD) continually seeks to develop new...
2000 Sustained Maintenance Planning
This START sheet addresses the concept of Sustained Maintenance Planning (SMP). (The RAC has also published a closely related sheet on Flexible Sustainment.)
2002 Statistical Confidence
This START sheet discusses the practical aspects of statistical confidence, i.e., the confidence that we place (from a probabilistic point of view) on a statement about some random phenomenon of...
2002 Statistical Assumptions of an Exponential Distribution
This START sheet discusses some empirical and practical methods for checking and verifying the statistical assumptions of an Exponential distribution and presents several numerical and graphical...
1999 Six-Sigma Programs
In 1988, Motorola Corp. became one of the first companies to receive the now well-known Baldrige National Quality Award. The specific Motorola innovation that attracted the most attention was its six...
1999 Single Process Initiative
SPI is an initiative for transitioning from multiple government-unique management and manufacturing systems to the use of common processes.
2001 Simulation-Based Acquisition (SBA)
Simulation-Based Acquisition (SBA) is an acquisition process in which DoD and Industry are enabled by robust, collaborative use of simulation technology that is integrated across acquisition phases...
1996 Reliability on the World Wide Web
One of the most striking technical developments of recent years has been the explosive growth of the World Wide Web. As of this writing there are more than 68,000,000 separate accessible sites on the...
1999 Reliability Growth
Reliability growth is the improvement of a product's reliability over time (hence the term, growth) through learning about the deficiencies of the design and taking action to eliminate or minimize...
2003 Reliability Estimations for the Exponential Life
Discuss practical considerations regarding the derivation of reliability estimations in the important case when the underlying distribution is Exponential.
1997 Reliability Design for Affordability
A task force chartered by the Department of Defense (DOD) in 1995 has defined Affordability as "a process for program management that will lead to affordable technology rather than a program for cost...
2012 Regression Analysis
Regression modeling is probably the most widely used (and misused) statistical tool in the analysis of data. Assume that we have two or more variables, that they are associated (correlated), and that...
2003 Reduction of Total Ownership Costs (R-TOC) Best Practices Guide
This document was prepared by the Institute for Defense Analyses for the Office of the Director of Defense Systems, under the task, Reduction of Total Ownership Costs. It addresses task objectives to...