Since the early 1990’s – when the concept of data warehousing started, the IT sector witnessed some major changes.
The rapid evolution of Business Intelligence over the past few years has drastically changed the way organizations collect, store, evaluate and analyze data.
But before going any further it’s essential to understand what exactly “Business Intelligence” (BI) means.
According to Howard Dresner, BI can be referred to as an umbrella term to describe “concepts and methods to improve business decision-making by using fact-based support systems.”
Traditionally, BI systems were used just by the IT department. Employees from all types of departments used to barge the IT staff with requests regarding the required data.
The concerned IT employee (who unusually tends to be familiar with all sorts of data) then extracts data from the BI system and uses Excel or a related software to prepare a report of the user’s choice.
This type of approach has had many disadvantages such as: