Problem
Identify all data sources in your city's library registration system. You must identify the entities, the names and contents of the data flows, and the direction of the data flows during this process. Then proceed as follows.
a) Draw a Functional dependency diagram (FDD) of the county library system website for your local library. Your FDD must consist of 3 levels. Write your assumptions, if any.
b) Draw a context diagram and a diagram 0 Data flow diagram that represents the county library system in your city.