GROUP MEMBERS  MANOJ GADHIRAJU  JASWANTH SINGH  SERGIO OLVEDA

Business Background The project sponsors:  Manoj Gadhiraju  Jaswanth Singh  Sergio Olveda 

Our Business Requirement  The ability to search our inventory database.  Customers enter their demographic information into our system.  The system populates a check out screen that allows the customer to enter credit card information, then stores the transaction.  Our system needs to store and update inventory.  The system has to generate reports given search criteria.

Context Level  Online Watch Club Information System  Data flow from external entities to the information system and back to the external entities.  External Entities  Customer  Management

Context Level Data Flow Diagram

Level 0  Two Entities  The Customer  Management  Five Processes  Search for Watches  Customer Info  Check Out  Enter Inventory Data  Generate Report  Three Data Stores  Watch Inventory  Customers Info  Transaction Info

Level 1 Process 1 DFD  One Entity  Customer  Two Processes  Search For Watch  Add to Shopping Cart  Data Storage  D1: Watch Inventory

Level 1 Process 2 DFD  One Entity  Customer  Two Processes  Check If Repeat Customer  Customer Info Entry  Data Storage  D2: Customer Info

Level 1 Process 3 DFD

 One Entity  Customer  Three Processes  Verify Order  Populate Customer Info  Transaction Screen  Data Storage  D1: Watch Inventory  D2: Customer Info  D3: Transaction Info

Level 1 Process 4 DFD  One Entity  Management  Two Processes  Update Existing Inventory  Enter New Inventory  Data Storage  D1: Watch Inventory

Level 1 Process 5 DFD

 One Entity  Management  Three Processes  Generate Inventory Reports  Generate Customer Reports  Generate Transaction Reports  Data Storage  D1: Watch Inventory  D2: Customer Info  D3: Transaction Info

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