1. CIS 210 Systems Analysis and Development
Week 4 Part II
Structuring System
Logic Requirements ,

2. Objectives Upon completion of part II you will be able to:
Understand and be able to explain the concepts related to using Structured English as a tool for representing steps in logical processes in data flow diagrams
Understand and be able to explain the concepts related to decision tables and decision trees
Understand and be able to explain the concepts related to logical modeling

3. Overview Modeling Process Decision Logic Structured English
Decision Tables
Decision Trees
Criteria for choosing logic modeling techniques

4. Logic Modeling Overview Modeling a System’s Logic
Internal structure
Functionality of processes
Analysis phase
Modeling a System’s Logic
Requirements structuring
Deliverables and Outcomes
Structured descriptions
Diagrams outlining logic
New entries

5. Structured English Conditional Statements Repetition Statement
BEGIN IF
IF Quantity-in-stock is less than Minimum-order-quantity
THEN GENERATE new order
ELSE DO nothing
END IF
Repetition Statement DO
READ Inventory records
UNTIL End-of-file

6. Decision Tables Overview Components Better for complicated logic
Tabular form
Components
Condition stubs
Action stubs
Rules
Procedures to follow

7. Decision Trees Overview Components
Depicts a decision or choice situations
Nodes and branches
Components
Decision points
Actions
Rules

8. Making a Decision

9. Summary Modeling process decision logic
Deliverables and outcomes of logic modeling
Structured English
Decision tables
Decision trees
Choosing amount decision logic methods