Big Data - Understanding your Customer Journey: Billions of views and clicks have must be handled by online marketeers each month. Which campaign has the most impact for your ROI? Dominik Johnson will use facts from a client case study and find with you the right way for summarizing your big data. Measuring and evaluating the customer journey is essential for the efficient control of online marketing activities, e.g.: If you know that the combination “banner view - product portal - PPC search” frequently leads to conversion for your products, you can focus on the corresponding successful channel and therefore put your advertising budget to use more efficiently.