In this rampage era of “Big Data”, we found ourselves in the position to look for keep on top of the “new wave” of information technology. Data Science is often seen as “The” career evolution for a diverse range of professionals, including computer scientists, mathematicians, business analysts, and many more…. Many many more. The core of Data Science, according to The Data Science Journal, resides in the interjection of Statistics, Business Analysis, Open Data, Data Engineering and Computer Science, and yet many Data Science applications, even official examples in the web on how to apply it (e.g. Python machine learning libraries) are found to be quite useful, albeit with a lack of properly used data modelling, and good computer programming practices . I am not blaming practitioners on not to do so, but I rather want to add my bit on building a better body of knowledge for everyone who wants to join to the Data revolution, from a Computer Scientist background perspective....