im not sure how to do this

Assg 5 Complete the following in teams or individually (submit individually) (1) Create a context diagram AND a diagram 0 DFD that represents the information system at a typical library OR another information system of your choosing (2) Create a decision table AND a decision tree with three conditions with of your choosing or for the following scenario. Be sure to state the logic if you develop your own scenario. In order to complete the business electives requirement for the Business Information Systems certificate, a student must complete MGT 101 as well as at least one these ACC 101 or ECO 101