1. Document Flow Diagram Sample

2. Document Flow Diagram Production Planning Stock Control Factory Supplier Purchasing Design Production Plan Stock Withdrawal Note Bill of Materials Delivery Note Purchase Order Supplier Details Update Form Delivery Note Material Requirements List

3. Context Diagram Design Factory Stock Control Purchasing Production Planning Supplier Production Plan Delivery Note Stock Withdrawal Note Bill of Materials Supplier Details Update Form Delivery Note Material Requirements List

4. Components of a Data Flow Model Overall process Agency Level 0 Level 1 Process 1 2 3

5. Components of a Data Flow Model Overall process Agency Level 0 Level 1 Level 2 Process 1 2 3 2 2.1 2.2 2.3 sub Process sub Process sub Process

6. Components of a Data Flow Model Overall process Agency Level 0 Level 1 Level 2 Level 3 Process 1 2 3 22.2 2.1 2.2 2.3 2.2.1 2.2.2 2.2.3 sub Process sub Process sub Process sub-sub Process sub-sub Process sub-sub Process

7. Overall process Elementary Process Description Decision Tree Decision Table Structured English Agency Level 0 Level 1 Level 2 Level 3 Level 4 Process 1 2 3 22.22.2.2 2.1 2.2 2.3 2.2.1 2.2.2 2.2.3 sub Process sub Process sub Process sub-sub Process sub-sub Process sub-sub Process Components of a Data Flow Model

8. Level 1 DFD a Customer b Order Processing 12 3 4 SalesDesign Materials Production Deal with customer Produce drawing and materials spec Price materials Add labour costs BQ1 (1) BQ1(2)+ specs BQ1(3)+ specs BQ1(4)+ specs Specification Quotation (1) Letter of intent BQ1 (completed) + quotation (2) + specs

9. Level 2 DFD a Customer b Order Processing Specification Quotation (1) Letter of intent BQ1 (completed) + quotation (2) + specs 4Production Add labor costs 2Design Produce drawing and materials spec 1Sales 1.1Sales Make out BQ1 * 1.2Sales Add mark-up and prepare quotation * 1.3Sales Process letter of Intent * BQ1 (1) BQ1(4) + specs M1/1Quotes BQ1(completed) +quotation (2) + specs BQ1(completed) +quotation (2) + specs