This paper reviews recent and relevant literature on the role of performability across the sustainable value chain by first introducing pertinent material in green supply chains, life cycle analyses, and EcoDesign methodologies. A new sustainable product life cycle framework is then proposed to represent key lifetime stages of sustainable systems. New research in performability is covered acros...

This paper assumes a user-oriented point of view in examining the performability of a dependable omputing system. The investigated performability measure is the e e tive time that a task, with an assigned work requirement, takes to be exe uted by the system. Assuming that the system hanges its performan e hara teristi s randomly in time, the sto hasti model representing the task ompletion time ...

Beowulf clusters are very popular because of the high computational power they can provide at reasonably low costs. However, the most pressing issues of today’s cluster solutions are the need for high availability and performance. Cluster systems are clearly prone to failures. Even if cover is provided with some probability c, there would be reconfiguration and/ or rebooting delays to resume th...

In this article, the probability of undetectable burst errors for network systems applying the tandem Cyclic Redundancy Check (CRC) coding scheme is analyzed under a performability framework.

Model-based evaluation is extensively used to estimate the performance and reliability of dependable systems. Traditionally, these systems were small self-contained, main challenge for model-based has been efficiency solution process. Recently, problem specifying maintaining complex models increasingly gained attention, as modern are characterized by many components interactions. Components sha...

Abstract Traditional solutions for tramway interlocking systems are based on physical sensors (balizes) distributed along the infrastructure which detect passing of trams and trigger different actions, like communications with ground system. This approach is not easily scalable maintainable, it costly. The SISTER project designed new architectural addressing previous problems virtualization loc...

We present a regenerative simulation method applicable to a special class of non-Markovian stochastic Petri net (SPN) that may be useful in practice for constructing and solving performability models. Introduced in [1], this special SPN is called a phased delay Petri net (PDPN) and was conceived to allow efficient numerical analysis while increasing the modeling fidelity. The PDPN permits phase...