(Solved): Show how to represent context diagram using proper symbols. Refer to the image below. CONTEXT DIAGRA ...

CONTEXT DIAGRAMS Read each of the following and a context diagram for each one. Exercise 1 Represent, using the proper symbols, the following actions: i) An external entity 'Supplier' sending an invoice to a process 'Deal with payment'. Assume the process takes place in the Accounts division. ii) A process called 'Update membership' writing customer details to a data store called 'Customers'. Assume the process is performed by the Membership Secretary. iii) A process called 'Order raw materials' is performed by the Purchasing Clerk. To do thi the clerk retrieves details from the 'Supplier' data store and sends the purchase order to the external entity 'Supplier'. The clerk also stores the purchase order details in a data store 'Purchase orders'. Exercise 2 State which pairs of symbols you are not permitted to connect together using a data flow: External entity - Process Data store-Data store . External entity-Data store • Process Process . External entity-External entity Process Data store