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Exercise

Exercise. Develop a context Diagram for a small bank for “Loan Granting” process Identify EXTERNAL entities Develop a Context diagram. Context Diagram I-P-O. Steps: INPUT Customer requests loan through an Application (input) Credit Bureau provides customer credit history (input)

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Exercise

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Presentation Transcript

  1. Exercise Develop a context Diagram for a small bank for “Loan Granting” process • Identify EXTERNAL entities • Develop a Context diagram

  2. Context Diagram I-P-O Steps: INPUT • Customerrequests loan through an Application (input) • Credit Bureau provides customer credit history (input) • Customer acceptance of loan (if accepted) • Customer provides completed (Executed) Loan Contract PROCESS: Process Loan OUTPUT: • Outcome: Accept/Reject IF Loan is approved Send acceptance notification IF accepted by customer Send Loan Contract Send Loan Amount ELSE Stop ELSE Send rejection letter

  3. Customer’s Credit History Credit Bureaus Loan Granting Process Application Executed Loan Contract Acceptance/ Rejection of Loan Notice of Acceptance or Rejection Customer Loan Contract Loan Funds

  4. Assume following processes (data Fragments) at level 0 for the Loan Granting Process • Application Process • Loan Process • Execute Loan • Loan Delivery Explode the context diagram for level 0 for the above processes

  5. 1.0 Application Process • INPUT from Context diagram .Customer .APPLICATION • PROCESS Check for application’s completeness • OUTPUT Completed Application 2.0 Loan Process • INPUT from context diagram customer credit History From Bank CUSTOMER database customer’s history with the bank Completed Application Bank rules from RULE database regarding bank’s policy on loans • PROCESS Based on bank’s rule decide if customer meets requirements for loan • OUTPUT: Decision Loan is accepted or rejected and notice is sent to customer (output to CUSTOMER) in context sub processes 3 & 4 can be similarly synchronized with the context diagram

  6. Application 1.0 Application Process Bank Rules Customer’s Credit History Completed Application Credit Bureaus Bank’s Rules 2.0 Loan Process Customer History Customer Database Notice of Acceptance or Rejection Update Customer Customer Acceptance or Rejection of Loan Loan Completed 3.0 Execute Loan Loan Contract 4.0 Loan Delivery Loan Funds Executed Loan Contract

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