MIS413 Lecture Notes - Lecture 3: Data Flow Diagram, Customer Relationship Management, Information Engineering

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Reasons that rmo decided to build the tradeshow system: Trade + collect info, improve manual process, crm (customer relationship management), web customers, a/r, a/p. What are the curre(cid:374)t processes i(cid:374) place, ho(cid:449) the(cid:455)(cid:859)re structured, ho(cid:449) the(cid:455)(cid:859)re (cid:373)a(cid:374)aged, t(cid:455)pe of work that goes on, organizational structure. Enables a person to understand and specify what an information system should accomplish. What is required for the new system to solve the problem. Enables a person to define + describe in detail the system that solves the need. How the system will operate to solve the problem. 3 (cid:862)co(cid:374)structs(cid:863) used i(cid:374) structured progra(cid:373)(cid:373)i(cid:374)g: sequence of instructions, selection of one direction or the other. Structured design technique: modules orga(cid:374)ized hierarchicall(cid:455) (cid:449)/(cid:859)calls(cid:859) fro(cid:373) (cid:373)odules at the top to the (cid:373)odules below. Structured analysis technique: dfd (data flow diagram, erd (entity relationship diagram) Focus: overall strategic systems planning to define the systems that need to be developed. Includes guidelines for all phases (planning, analysis, design, implementation)

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