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SDLC

CS5493. SDLC. SDLC. System Development Life Cycle. SDLC. Simplified SDLC Analysis (planning) Design Development Deployment (implementation) Maintenance (assessment) Decommission. SDLC. Analysis – collect data and determine the needs for a new system.

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SDLC

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  1. CS5493 SDLC

  2. SDLC • System Development Life Cycle

  3. SDLC • Simplified SDLC • Analysis (planning) • Design • Development • Deployment (implementation) • Maintenance (assessment) • Decommission

  4. SDLC • Analysis – • collect data and determine the needs for a new system. • Determine the objectives for the system

  5. SDLC • Design • Design a system that can be implemented taking into account • the required objectives, • desired outcomes, and • resources available

  6. SDLC • Deployment (implementation) • Don't let all that hard work go to waste! • Support from management • Budgeting/purchasing • Training • Publishing • etc

  7. SDLC • Maintenance (assessment) • Measure if the system meets the objectives • Must work as intended and produce the desired outcomes • There could be unexpected outcomes • Implement a Sustainability Cycle

  8. SDLC • Decommission • Your system may eventually become obsolete • Secure disposal of assets

  9. The Sustainability Cycle(loop)

  10. The Sustainability Cycle • Establishing a system in-perpetuum. • Analysis (planning) • Design • Development • Deployment (implement) • Maintenance

  11. Sustainability Cycle • What makes this different from SDLC?

  12. Sustainability Cycle • Analysis • Periodic review of the system (6-24 months) • To insure a proper review, someone must be held accountable for the review.

  13. Sustainability Cycle • re-Design • Those aspects of the original design that • do not produce the desired outcomes, or • produce unexpected negative results must be re-designed, replaced, decommissioned.

  14. Sustainability Cycle • Deployment • implement the changes

  15. Sustainability Cycle • Maintenance • Repeat the sustainability cycle

  16. SDLC • SDLC can be applied to physical systems, policies & procedures, computer security awareness program (or training), etc.

  17. Program, Policies, and Procedures • Implementing a p* has benefits and consequences. • A good p* is expected to produce desired outcomes. • A p* can have undesirable and unexpected consequences. • Use a sustainment cycle to keep it relevant. Periodically review the effectiveness of your p* and be prepared to make changes.

  18. Pragmatism • The effectiveness of a policy is dictated by its observable results. • The policy must work as intended and produce the intended outcome.

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