J. Zhou and T. Stålhane (Norway)
Robustness, assessment, web-based systems, FMEA
Time pressure and quality issues bring new challenges for
developing web-based systems. The ability to analyze
quality early in the development lifecycle is crucial.
Among the techniques suggested by the literature, few of
them actually support early quality activities when little
information about the system is available. We take
robustness as a critically important quality attribute, and
present a framework for performing robustness
assessment during analysis and architecture design stages.
Firstly we use Jacobson's analysis method to identify a
set of objects. Then for each object, we apply a simplified
FMEA to find robustness-related failure modes, possible
causes, their effects, and furthermore, we identify possible
ways to prevent or reduce robustness failures. In the end,
we illustrate the proposed method through an example
from a simple web-based Internet Bookstore system.