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D. Tang, M. Hecht,J. Handal, L. Czekalski, "MEADEP and Its Applications in
Evaluating Dependability for Air Traffic Control Systems", 1998 IEEE Reliability
and Maintainability Symposium Proceedings, Anaheim, CA, January, 1998
MEADEP
is a user-friendly dependability evaluation tool for measurement-based analysis
of digital systems including both hardware and software. Features of MEADEP are:
a data processor for converting data in various formats (records with a number of
fields stored in ASCII, dBASE, Access and other database files) to the MEADEP format,
a statistical analysis module for graphical data presentation and parameter estimation,
a graphical modeling interface for building reliability block and Markov diagrams,
a library of dependability models for constructing customer models, and a model
solution module for availability/reliability calculation and parametric analysis.
Use of the tool on failure data from measurements can provide quantitative assessments
of dependability for critical systems, while greatly reducing requirements for specialized
skills in data processing, analysis, and modeling from the user. MEADEP has been
applied to evaluate dependability for several air traffic control systems (ATC)
and results produced by MEADEP have provided valuable feedback to the program management
of these critical systems. In the future, MEADEP will be applied to other types
of critical systems.
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