Document Flow Diagram

Sample

Document Flow Diagram

ProductionPlanning

StockControl

Factory

Supplier

Purchasing

Design

ProductionPlan

StockWithdrawalNote

Bill of Materials

Delivery Note

PurchaseOrderSupplier Details Update Form

Delivery Note

Material Requirements List

Context Diagram

Design

Factory

Stock Control Purchasing

ProductionPlanning

Supplier

ProductionPlan

Delivery Note

StockWithdrawalNote

Bill of Materials

Supplier Details Update Form

Delivery Note

Material Requirements List

Components of a Data Flow Model

Overallprocess

Agency

Agency

Level 0 Level 1

Process

Process

Process

1

2

3

Components of a Data Flow Model

Overallprocess

Agency

Agency

Level 0 Level 1 Level 2

Process

Process

Process

1

2

3

2

2.1

2.2

2.3

subProcess

subProcess

subProcess

Components of a Data Flow Model

Overallprocess

Agency

Agency

Level 0 Level 1 Level 2 Level 3

Process

Process

Process

1

2

3

2 2.2

2.1

2.2

2.3

2.2.1

2.2.2

2.2.3

subProcess

subProcess

subProcess

sub-subProcess

sub-subProcess

sub-subProcess

Overallprocess

Elementary Process

Description

Decision Tree

DecisionTable

StructuredEnglish

Agency

Agency

Level 0 Level 1 Level 2 Level 3 Level 4

Process

Process

Process

1

2

3

2 2.2 2.2.2

2.1

2.2

2.3

2.2.1

2.2.2

2.2.3

subProcess

subProcess

subProcess

sub-subProcess

sub-subProcess

sub-subProcess

Components of a Data Flow Model

Level 1 DFD

aCustomer

bOrder

Processing

1 2

3

4

Sales Design

Materials

Production

Deal withcustomer

Producedrawing andmaterials spec

Pricematerials

Add labourcosts

BQ1(1)

BQ1(2) + specs

BQ1(3) + specs

BQ1(4) + specs

Specification

Quotation (1)

Letter of intent

BQ1 (completed)+ quotation (2)+ specs

Level 2 DFD

aCustomer

bOrder

Processing

Specification

Quotation(1)

Letter of intent

BQ1 (completed)+ quotation (2)+ specs

4 Production

Add laborcosts

2 Design

Producedrawing andmaterials spec

1 Sales

1.1 Sales

Make out BQ1

*

1.2 Sales

Add mark-upand preparequotation *

1.3 Sales

Process letter of Intent

*

BQ1 (1)

BQ1(4) + specs

M1/1 Quotes

BQ1(completed) +quotation (2) + specs

BQ1(completed) +quotation (2) + specs