Architecture-based Strategy for Interface Fault Injection

This paper presents a strategy that is an adaptation and an evolution of a previous one proposed to validate an isolated component. Faults are injected using a previously developed tool, Jaca that has the ability to inject faults into Java objects’ attributes and methods. One of the key issues in component-based systems is its architecture, not only for development but also for testing. By analyzing the architecture we can define the points of control and observation of the system’s components during testing. Another important issue is the selection of components to be injected and monitored. A risk-based strategy is proposed, in order to prioritize the components for testing which represent higher risks for the system. In this way, test costs can be reduced without undermining the system’s quality.