Systems Development Life Cycle

SDLC: Systems Development Life Cycle, or Software Development Life Cycle.

SDLC Life-Cycle Phases:

• Initiation: Sponsor identifies a need or an opportunity: Concept Proposal
• System Concept Development: defines scope or boundary of concepts: Systems Boundary Document, Cost Benefit Analysis, Risk Management Plan, Feasibility Study
• Planning: develop Project Management Plan; provide basis for aquiring resources needed.
• Requirements Analysis: analyze user's needs: detailed Functional Requirements Document.
• Design: transform detailed requirements into complate and detailed System Design Document focusing on how to deliver the required functionality.
• Development: convert design into complete information system, including
  • aquire & install systems environment
  • create & test database
  • prepare test procedures
  • prepare test files
  • code, compile & refine programs
  • perform test readiness review & procurement activities
• Integration & Test: demo the system by QA staff & users: Test Analysis Report.
• Implementation: resolve problems found in previous step; release to production environment
• Operation & Maintenance: describe tasks to operate & maintain it in prod env, including Post-Implementation & In-Process Reviews.
• Desposition: describe end-of-system activities, emphasis is given to proper preparation of data.