In order to permit users with little analytic background to evaluate dependability, modeling tools require a user-friendly front end. With this motivation, we have developed a software tool referred to as SDDS for "Software Dependability for Distributed Systems." In particular, we have designed and implemented a graphical user interface (GUI) based on a "user-language"-basic building blocks representing system components and/or subsystems. Therefore, the user can specify his/her dependability model at a high level. SDDS then translates the high-level specification into a representation that can be automatically solved by the underlying modeling engines SHARPE or SPNP (both from Trivedi, a Professor at Duke University). The translation and solution processes are transparent to the user. We first illustrate the design of SDDS. We then describe, from a software engineering perspective, how SDDS can be utilized effectively for evaluation and improvement of system design.


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    Title :

    A user-friendly dependability evaluation tool


    Contributors:
    Hecht, H. (author) / Tai, A.T. (author) / Trivedi, K.S. (author) / Chruscicki, A.J. (author)


    Publication date :

    1996-01-01


    Size :

    445397 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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