Diploma in ICT Module 3: Systems Analysis, Design & Implementation Guide
Diploma in ICT Module 3: Systems Analysis, Design & Implementation Guide
A comprehensive study guide for Diploma in ICT Module 3 covering the System Development Life Cycle (SDLC), Data Flow Diagrams (DFDs), and system testing.
The System Development Life Cycle (SDLC)
The SDLC is the foundational framework for building software systems: Preliminary Investigation, Feasibility Study, Requirements Analysis, System Design, Development/Coding, Testing, Deployment, and Maintenance.
Data Flow Diagrams (DFDs) and Flowcharts
Understand the distinction between logical and physical DFDs. Master standard Gane & Sarson or Yourdon symbols: External Entities, Processes, Data Stores, and Data Flows.
System Changeover Strategies
Memorize the 4 primary changeover strategies:
– **Direct Changeover:** High risk, abrupt switch.
– **Parallel Changeover:** Safest, old and new run concurrently, resource heavy.
– **Phased Changeover:** Modular implementation step-by-step.
– **Pilot Changeover:** Implemented in one branch/department first.
Looking for More Past Papers & Complete Model Solutions?
Visit the Jemshah eLearning Courses Hub to access interactive quizzes, syllabus modules, and downloadable revision guides. You can also download our companion mobile revision apps on the Google Play Store to study on the go.
