What does a Data Flow Diagram (DFD) represent?Options :Control flow between modulesData movement and transformationLayered structure of the softwareObject interactions

What is the purpose of a Data Flow Diagram (DFD) in software design?

Identify the Data Flow Diagram (DFD) elements in the following narrative: “Henk buys a new bicycle at a local shop and pays with his debit card. After confirming the payment, the sales clerk gives an invoice to the customer. A copy of the invoice if kept in the invoice file. The sales clerk then enters the transaction into the sales file. At the time of closing, the sales clerk retrieves all transactions made during the day and gives the report to his manager.”

Data flow diagram is used when a company goes outside its organization to develop a new systemQuestion 18AnswerTrueFalse

What is the purpose of a Structure Chart in software design?Options :Representing data flowDescribing data relationshipsVisualizing the hierarchical structure of modulesShowing control flow

------------>  symbol represents________?*Data FlowData StoreData processModule Hierarchy