Optimizing Design Interface through Experimentation: Many companies run online controlled experiments to make data driven decisions and provide an intuitive experience to the visitor throughout his/her journey. We present an approach for assessing these effects, through Design of Experiments (DOE), which helps in breaking the experiment into components and identifying which of those components would make an impact on the conversions. The learning of DOE can be applied in optimizing the design better. Retaining Mobile Customers – One User At A Time: This session talks about how Customer Engagement and other measures can help retain customers. Prompting users to provide feedback creates a league of very vocal customers who can vouch for the effectiveness of the application, in turn driving other people to use the application. Employing Analytics to study user behavior, clustering and utilizing it to understand the most followed workflows can help in optimizing the experience for users.