Statecharts: A visual formalism for complex systems
Science of Computer Programming
Real-time object-oriented modeling
Real-time object-oriented modeling
Software architecture: perspectives on an emerging discipline
Software architecture: perspectives on an emerging discipline
Software metrics for reliability assessment
Handbook of software reliability engineering
A formal basis for architectural connection
ACM Transactions on Software Engineering and Methodology (TOSEM)
Software architecture in practice
Software architecture in practice
Real-Time UML: Developing Efficient Objects for Embedded Systems
Real-Time UML: Developing Efficient Objects for Embedded Systems
Scenarios in System Development: Current Practice
IEEE Software
A Metrics Suite for Object Oriented Design
IEEE Transactions on Software Engineering
METRICS '97 Proceedings of the 4th International Symposium on Software Metrics
Coupling Metrics for Object-Oriented Design
METRICS '98 Proceedings of the 5th International Symposium on Software Metrics
Dynamic Metrics for Object Oriented Designs
METRICS '99 Proceedings of the 6th International Symposium on Software Metrics
A Component-Based Approach to Reliability Analysis of Distributed Systems
SRDS '99 Proceedings of the 18th IEEE Symposium on Reliable Distributed Systems
Scenario-Based Reliability Analysis of Component-Based Software
ISSRE '99 Proceedings of the 10th International Symposium on Software Reliability Engineering
Dynamic Coupling Measurement for Object-Oriented Software
IEEE Transactions on Software Engineering
A survey of dynamic software metrics
Journal of Computer Science and Technology
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Risk assessment is an essential process of every software risk management plan. Several risk assessment techniques are based on the subjective judgment of domain experts. Subjective risk assessment techniques are human intensive and error-prone. Risk assessment should be based on product attributes that we can quantitatively measure using product metrics.This paper presents a methodology for risk assessment at the early stages of the development lifecycle, namely the architecture level. We describe a heuristic risk assessment methodology that is based on dynamic metrics obtained from UML specifications. The methodology uses dynamic complexity and dynamic coupling metrics to define complexity factors for the architecture elements (components and connectors). Severity analysis is performed using Failure Mode and Effect Analysis (FMEA) as applied to the architecture simulation models.We combine severity and complexity factors to develop heuristic risk factors for the architecture components and connectors. Based on component dependency graphs - that were developed earlier for reliability analysis - and using analysis scenarios, we develop a risk assessment model and a risk analysis algorithm that aggregates risk factors of components and connectors to the architectural level.We show how to analyze the overall risk factor of the architecture as the function of the risk factors of its constituting components and connectors. A case study of a pacemaker is used to illustrate the application of the methodology.