Create Data Flow Diagram using STRIDE, identify threats and provide a summary of the diagram

Create a data flow diagram of some system.  Can use a real world example or a hypothetical one.   Write a summary explaining the data flow diagram and .   Using STRIDE with the Data Flow Diagram, provide a list of threats against the model.  The list should include which element of the mnemonic they represent (spoofing, tampering, etc.) Express these concepts in own words.  The requirements are:1.1. 2.2. 3.3.  4.4.