Embodiments of the invention include an arbiter facility included in a test script. The arbiter facility includes properties defining a method for evaluating the status of a step or process, a method for evaluating verification point results and the steps to execute during execution of the test script. The arbiter facility operates to control the flow of the processes performed that form the test script. The control of the processes that are performed are based on explicit rules or conditions. The rules implemented by the arbiter facility can result in different processes within the test script being performed based on data processed by the arbiter facility. Moreover, aspects of the invention embodied by the arbiter facility implement rules which explicitly express, within the test case, the value (e.g., weight, importance, etc.) of individual operations. In the exemplary embodiment, the value of one or more individual operations are explicitly expressed by the rules (e.g., computations, calculations, determinations, etc.) that are imposed on the results returned to the arbiter facility by the various verification points within the test script. Accordingly and advantageously, analysis on the value of a verification point may be performed prior to implementing or executing a test script. This analysis may then be reflected in the rule implemented in the arbiter facility.