Reducing the cost of risk-based testing: management of testing options to manage risk in test and evaluation
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Authors
Pfeiffer, Karl D.
Kanevsky, Valery A.
Housel, Thomas J.
Subjects
Monte Carlo method
Advisors
Date of Issue
2009
Date
2009
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
In the acquisition or management of complex systems, testing is the means by which we trade budget or schedule for information about the likelihood our system will work correctly under operational load. Branch paths in hardware and software increase as a function of the number of components and interconnections, leading to exponential growth in the number of test cases required for exhaustive examination, or perfect knowledge, of a complex system. In practice, the typical cost for testing in schedule or in budget means that only a small fraction of these paths are investigated. In this work, we develop an abstract model to describe system testing and the information return (or reduction in risk) for the attendant cost in time and mondey. This model is supported by a mathematical analysis suitable for Monte Carlo simulation. The long-term goal of this modeling work is to construct a decision-support tool for the Navy Program Executive Office Integrated Warfare Systems (PEO IWS) offering quantitative information about cost versus diagnostic certainty in system testing.
Type
Technical Report
Description
Series/Report No
Department
Graduate School of Business & Public Policy (GSBPP)
Identifiers
NPS Report Number
NPS-GSBPP-09-027
Sponsors
Funder
Format
xii, 63 p.: ill.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.