The Planning Phase of the System Development Life Cycle

1. THE SYSTEM DEVELOPMENT LIFE
CYCLE
THE PLANNING PHASE
Gina M. Di Santo – Instructor

4. SYSTEM DEVELOPMENT LIFE CYCLE MODEL

5. REASONS FOR DEVELOPMENT
• PROBLEM RESOLUTION
• IMPROVEMENTS
• NEW BUSINESS
• NEW REQUIREMENTS

6. PLANNING
DEFINE THE PROBLEM
EXAMPLES
– INFORMATION IN NON-USEFUL FORMAT
– SYSTEM IS INCOMPATIBLE WITH OTHER
SYSTEMS
– LONG PROCESSING TIMES DUE TO
INCREASED VOLUME
– SYSTEM IS OUTDATED

7. DEFINE THE REQUIREMENTS THAT
MUST BE MET FOR ANY SOLUTION
• DETERMINE IF • TECHNICAL
THERE ARE ANY REQUIREMENTS
LEGAL OR
REGULATORY ISSUES • SIZE
THAT MIGHT
BECOME RISKS.
• LANGUAGES
• SECURITY

8. FEASIBILITY ANALYSIS
• TECHNICAL—CAN IT BE BUILT?
• ECONOMIC—COST/BENEFIT ANALYSIS
• OPERATIONAL—WILL IT BE USED? HOW WELL
DOES IT SOLVE THE PROBLEM?
• SCHEDULE- IS TIME FRAME ACCEPTABLE?
• FINANCIAL--CASH FLOW? HOW MUCH WILL IT
COST? FINANCING?
• RESOURCE-WILL IT INTERFERE WITH NORMAL
OPERATIONS? DEPENDENCIES?

9. PLAN SHOULD REFLECT BEST
ESTIMATION OF:
Scope, benefits, costs, risks, and resource
requirements given the problem definition.
On time delivery
Delivery within budget constraints
Definition of project resources, activities,
schedules, tools, and reviews.