A) Introduction

PROCESS DESIGN - design components that specify when and how things should be done to support user requirements

3 dimensions of process design (Fig. 10.2)

B) Time Dimensions

• Real-time processing - includes interactive interface (Fig. 10.3)
• hard real-time - application fails if not on time
• soft real-time - performance degraded if not on time

Characteristics

1. Process Orientation - continuous processing

1. Online File Availability
2. Very Short time Intervals
3. Constant Updating
4. Records Organized for Rapid Access

Batch processing - periodic; sequential Input->Output (Fig. 10.4)

C) Designing Real-time Processes

• Static Design (DFD) - what (Fig. 10.5)
• Dynamic Design (STD) - when (Fig. 10.6)
• Process Specification Models - how
• Process Action Diagrams (Fig. 10.7)
• Elementary Process/Entity Matrices (Fig. 10.8)

D) Designing Batch Processes

• Static Design (DFD) (Fig. 10.9)
• Process Specification Models

E) Developing Process Specifications Using Equations

• Transaction Equations (Sales_Tax = Item_Cost * Sales_Tax_Rate)
• Basic Accounting Equations (assests = liabilities + owner's equity)
• Cost-Volume-Profit Equation
• Budget & Performance Evaluation Equation
• Economic Order Quantity Equation
• Statistical Equations

Exercises: look over 1-7; turn in 10.10, 10.12, 10.16, 10.18