Applying Combinatorial Testing to Large-Scale Data Processing at Adobe

Adobe offers an analytics product as part of the Marketing Cloud software with which customers can track many details about users across various digital platforms. For the most part, customers define the amount and type of data to track. This high dimensionality makes validation difficult or intractable. Due to increasing attention from both industry and academia, combinatorial testing was investigated and applied to improve existing validation. In this paper, we report the practical application of combinatorial testing to the data collection, compression and processing components of the Adobe analytics product. Consequently, the effectiveness of combinatorial testing for this application is measured in terms of new defects found rather than detecting known defects from previous versions. The results of the application show that combinatorial testing is an effective way to improve validation for these components of Adobe Analytics. In addition, we report the details of the input parameter modeling process and test value selection to provide more context for the problem and how combinatorial testing provides the structure to improve validation for Adobe Analytics.