From O’Reilly, quite long but interesting primer about the science of data, from some terms explanation
merely using data isn’t really what we mean by “data science.” A data application acquires its value from the data itself, and creates more data as a result. It’s not just an application with data; it’s a data product. Data science enables the creation of data products.
thru examples (Google trends), data sources, how to scale (Hadoop, mapReduce, …), data visualization to the profile and skills of the data scientists.