b64de88222b7918ee83c0752108a8d4c.ppt
- Количество слайдов: 15
Reader’s Outpost Group Members: Saif Ahmed, Claudia Ledesma & Sarah Rush
System Request p Project Sponsor: Michael Moore, President p Organization: Reader’s Outpost p Phone: 281 -954 -0003 p Email: mmoore@readersoutpost. com
Business Model & Background p Family owned bookstore since 1988 p About $400, 000 in annual sales p Currently employees 3 full-time and 3 part-time employees p Very well know in the local writer’s community p Debt ratio has been maintained at a very low figure (20%) for the last 3 years p Bookstore specialty is carrying rare finds p Monthly book club meetings are conducted in the store p All transactions are conducted on a manual cash register
Business Requirement p Capture the data on book inventory, prices, author, sales transaction and employees p Search books by authors, book id, genre, quantity being sold, price p Ability to run reports and plot trend charts p Track employee productivity based on books sold p Instant access to profit margins on books and net sales p Ability to track refunds electronically
Context Level p Reader’s Outpost Point of Sale p Data flow to and from external entities and Point of Sale process p External Entities Ø Bookstore Employees Ø Bookstore Manager
Context Level DFD
Level 0 (Metadata) p 5 Processes Ø Search Book Information Ø Enter/Edit Book Information Ø Check Out Customers Ø Run Reports/Plot Trend Charts Ø Enter/Edit Employee Information q 6 Data Stores Ø D 1 – Books Ø D 2 – Employee Ø D 3 - Transaction
Level 0 DFD
Level 1 Process 3 (Check Out Customers) q 1 External Entity Ø Bookstore Employees q 2 Processes Ø 3. 1 Process Sale Ø 3. 2 Process Return q 2 Data Stores Ø D 1 – Books Ø D 3 - Transaction
Level 1 Process 1 DFD
Level 1 Process 5 (Enter/Edit Employee Information) q 1 External Entity Ø Bookstore Manager q 3 Processes Ø 5. 1 Lookup Employee Information Ø 5. 2 Create New Employee Ø 5. 3 Modify Existing Employee q 1 Data Store Ø D 4 – Employee
Level 1 Process 5 DFD
Level 2 Process 3. 1 (Process Sale) q 1 External Entity Ø Employees q 4 Processes Ø 3. 1. 1 Input Book information using SKU Ø 3. 1. 2 Enter Quantity Ø 3. 1. 3 Determine Discounts Ø 3. 1. 4 Determine Sales Total q 4 Data Store Ø D 1 - Books Ø D 3 - Transaction Ø D 4 – Transaction Detail
Level 2 Process 3 DFD
Questions?
b64de88222b7918ee83c0752108a8d4c.ppt