Stage 4: Implementation

28 Feb

The fourth phase in SDLC is Implementation

It entails converting physical system specifications into a working system. The system is developed, tested and implemented.

This is a crucial step which involves converting from the old system to the new system. There are four types of conversions:

  1. Parallel [the old system + the new system are used while the new system is being tested, when the new system is working, the organization stops using the old system]
  2. Pilot [a small group of people use the new system while the rest of the organization continue to use the old system. when the new system is fully working for the pilot group, then the rest of the organization switch over and use the new system too]
  3. Phased [the organization switches from the old system to the new system one component/step at a time until the whole new system is fully in place]
  4. Plunge [this involves switching from the old system to the new system in one go]

Essentially what this phase entails is the construction and installation of the new system.

Some of the activities that occur in this stage include:

  • Coding {physical design specifications converted into a working computer code}
  • Integration and Testing {create a testing environment to bring all the components together, this could be done using one of the four conversion phases as mentioned above}
  • Installation {the new system is having the new system fully in place with all parts of the organization using it

An outcome of this phase is, obviously enough, a fully installed system across the organization. But the system will not operate properly unless users are fully trained to use the system which is a vital element of implementing the system. And another outcome is user and operational documentation.

The next phase in the SDLC is Maintenance. I will discuss this in my next blog post along with a quick overview/summary of the SDLC!



5 Responses to “Stage 4: Implementation”

  1. sad111417672 February 28, 2013 at 12:41 pm #

    good blog 🙂

  2. sad111505863 February 28, 2013 at 12:46 pm #

    really informative …explains implementation stage very well …:)

  3. sad111359681 February 28, 2013 at 1:00 pm #

    I really learned from this blog, simple but interesting! good job!

  4. sad111413042 February 28, 2013 at 1:38 pm #

    Great blog 🙂 like the way you’re splitting up each stage and going in depth, rather than just a general overview in one blog!

  5. sad112540853 March 8, 2013 at 2:37 am #

    Great blog, very helpful and the links are also very helpful, thanks 😀

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