A/L ICT Lesson 07: Systems Concept and Systems Analysis
Bilingual, exam-focused notes for Unit 7 of the Sri Lankan GCE Advanced Level ICT syllabus. Covers system classifications (open/closed, natural/man-made), information system types (TPS, DSS, MIS, ESS), the System Development Life Cycle (SDLC) models (Waterfall, Agile, Spiral), feasibility studies, and system analysis tools including Data Flow Diagrams (DFD) and Entity Relationship Diagrams (ERD). Also includes syllabus-required deployment methods (Parallel, Direct, Phased, Pilot) and testing strategies (White Box, Black Box, Acceptance). Features interactive calculators for SDLC model selection and Benefit-Cost Ratio (BCR), alongside 5-option MCQs, 12 flashcards, and structured essay questions.
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