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Software EngineeringDraw the context diagram and Level 1 DFD for the following Mail Order Processing System. "HMV Records is a mail-order company that distributes CDs and tapes at discount prices to record club members. When an order processing clerk receives an order form, he/she verifies that the sender is a club member by checking the member file. If the sender is not a member, the clerk returns the order along with a member form. If the sender is a member, the clerk verifies the order item data by checking the Item file. Then the Daily Order file. The clerk also prints an invoice and shipping list for each order, which are forwarded to order fulfillment."20237mSoftware EngineeringDraw the first two levels of DFDs for an 'Online Examination System'. Make necessary assumptions.20217mSoftware EngineeringDesign the following for an 'E-commerce solution for an electronic products company' that gives choice to the users to select a/few product(s) from the available range, order them and allow to make the payments online: (i) Design the DFDs (level-0, 1 and 2). (ii) Prepare SRS document. List assumptions, if any. (iii) Design an ER-diagram. List all the entities, attributes, key constraints and cordiality. (iv) Draw a Gantt chart. (v) Specify the s/w engineering pre-design which suits this application development.20207mSoftware EngineeringDesign the following for an 'E-commerce solution for an electronic products company' that gives choice to the users to select a/few product(s) from the available range, order them and allow to make the payments online: (i) Design the DFDs (level-0, 1 and 2). (ii) Prepare SRS document. List assumptions, if any. (iii) Design an ER-diagram. List all the entities, attributes, key constraints and cordiality. (iv) Draw a Gantt chart. (v) Specify the s/w engineering pre-design which suits this application development.20207m
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