Marketing dawned on the world as a customer-centric philosophy, leaving behind the production and sales approach which focused on the producers and products, rather than the customer needs and wants. Still the assessment of what the customers real needs and wants are and once these get translated into products how far they coninue to meet them at different stages of their life cycle remained foggy and dreamy. These days we have made advances in big data and that has led to an increase understanding of the consumer behaviour and enable the organisations to measure and manage consumer decision points. In addition we can target better and have the metrics to measure returns on marketing efforts.Big data has led to big research and automated analysis.There are online surveys which are far bigger and speedier than the mall-intercept small surveys.These surveys are useful in shaping the brand strategy, the advertising campaign and the product mix.Marketing  no longer remains a psychlogy-based art but becomes a marketing science with metrics, models and tools of targeting and engaging the customers at point-of-sale.Really this is the coversion of the foggy and dreamy marketing into a golden dawn.