TEST COMPONENTS FACTORIZATION IN A BUILD SYSTEM

The factorization of test components when performing component-level regression testing in iterative builds of a computing system that consists of many working components. Performance metrics for test components are maintained across multiple builds of the computing program. To perform factorization, multiple factorings of a test component are identified and evaluated until a suitable improvement in the maintained performance metric for each corresponding test component is achieved (e.g., via simulation). This may be performed, across multiple of the test components. This process may be iterated through such that the set of test components being factored and evaluated in a subsequent iteration may in fact be a test component created by factorization in a prior iteration. The net result is that the factorization achieves improvement in performance metrics of the test components.