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Use the information provided in the case study and the Case Study Interview Questions discussion to create a checklist of functional and technical requirements and the data and process models listed below. Using the format and resources below, list three requirements for each of the areas shown in I and II. Then, create two diagrams to illustrate the scope of the system: the context diagram and the use case diagram. Then, create the data flow diagram to illustrate the flow of the inputs and outputs listed as functional requirements in section I. You should then select a process or process step (from those listed in section I.b – processing requirements) that has some decision associated with it to create the three process models listed below. The same process/process step will be used for all three of the process models; they are just different ways to represent the process and the decision involved. Approximate lengths for each section are provided as a guideline; be sure to provide all pertinent information. References in brackets are to the two e-textbooks (by authors Jawahar and Conger) used in this class and the page on which the explanatory information begins. Use the examples listed in the brackets to develop your diagrams. There are several different methodologies using different symbols, but your diagrams will be graded for compliance with the examples listed. You are required to use the symbols and diagramming methods illustrated in the examples, and follow any rules for the diagram in the sources listed with each diagram.
Functional Requirements. The input-processing-output requirements must relate to each other. Start with three outputs you expect from the system, then determine what inputs are needed to create each of those outputs, and finally specify what processing needs to occur for each input to create the output. At least one of your processing requirements must have a decision associated with it so it can be used for the Process Models below. You should have a complete statement for each requirement, and each requirement should be numbered within the category. (introductory paragraph and list of 9 inter-related requirement statements) [Jawahar, p. 95 and the Week 3 Content, including reading on IEEE Software Requirements Specifications] [another source of ideas and concepts is: http://www.slideshare.net/ALATechSource/sample-pro…]
a. Output requirements. List three different reports, results of a calculation, or other outputs.
i. Output #1
ii. Output #2
iii. Output #3
b. Input requirements.
i. List the main data elements required to create output #1
ii. List the main data elements required to create output #2
iii. List the main data elements required to create output #3
c. Processing requirements (at least one must have a decision associated with it)
i. Processing required to create Output #1
ii. Processing required to create Output #2
iii. Processing required to create Output #3
II. Technical Requirements (introductory paragraph and 3 requirement statements listed for each area below) [Jawahar, p. 95]
a. Security requirements
b. System control requirements
c. Performance requirements
d. Business continuity requirements (backup, restart, recovery)
III. System Scope Diagrams (introductory/explanatory paragraph and 2 diagrams) [a good explanation and example is at http://www.jamasoftware.com/blog/defining-project-scope-context-use-case-diagrams/]
Context Diagram [explanation in Conger, p.228; use example in Conger, p.229. Figure 7.2]
Use Case Diagram [use example in weblink above]
IV. Data Flow Diagram (introductory/explanatory paragraph and diagram) [Week 4 Content module and weblinks]
Data Flow Diagram [explanation in Conger, p.228; use example in Conger, p.230, Figure 7.3; use the rules at https://www.dlsweb.rmit.edu.au/toolbox/ecommerce/tbn_respak/tbn_e2/html/tbn_e2_devsol/dfds/dfdrules.htm ]
V. Process Models (introductory/explanatory paragraph and 3 items below) [Week 4 Systems Analysis Course Module]
a. Structured English [use example in Systems Analysis Course Module, Process Description Tools]
b. Decision Table [use example in Systems Analysis Course Module, Process Description Tools]
c. Decision Tree [use example in Systems Analysis Course Module, Process Description Tools]
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