Context Diagram/Data Flow Diagram

Aswell as producing a spreadsheet that will function as a Markbook, we had to produce a Context and Data Flow Diagram. The Context Diagram was not that difficult to construct but the Data Flow Diagram was a litlle more difficult due to the further level of detail not seen in the context diagram. To solve this I drew the Data flow diagram first on a paper as it is more easier to maneuver the different processes, flow of data and the different symbols used.