I have a project related to online google forms. I have to make a DFD ERD DB and Use Case Diagram for this topic.....But I don't know how all these can be done...I don't know where to start. I'm not able to identify that which thing will be entity and what thing will be process etcetra etcetra though I have knowledge of all the above mentioned diagrams in and thier usages but still I'm not able to start my project. Please help me giving some pictorial examples if possible.
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