Weakness of Traditional Systems Development Life Cycle (SDLC)

Almost the same as any other industry standards, system development life cycle has advantages and disadvantages. The surplus is the sequential steps that allows system developers to focus on the I step first, and after moving to the next step. For beginners this approach is very useful. But there are some disadvantages as a result and these sequential steps, including:

1. Too wasteful, and in terms of both cost and time, when there are changes when the system has been developed. This is due to a change in one phase will result in a later stage. Thus, the SDLC must be implemented with the assumption that each stage should not be mistaken.
2. SDLC is a method that requires a structured approach to follow all the steps there. If developers want a faster manufacturing process by eliminating one or more steps then the result is a system built to fail.

Phase Maintenance

The last step and the SDLC in which the system at this stage systematically improved and enhanced. Results and this stage is that the new version and the software that has been made. Improvements made can be very varied levels, starting and improving a crash program to function again until the addition of modules that a new program in response to changing user needs.

Step-by-step maintenance system comprising:

1. Use of System. That is using the system in accordance with the functions of their respective duties for the operation or daily routine.
2. Audit System. Namely to use and formal research to determine how well the new system can meet the performance criteria. This sort of thing is called the review after the application and can be performed by an internal auditor.
3. System Maintenance. Ie monitoring for routine checks so that the system is still operating properly. In addition, to maintain recency system at any time if the environment changes or modifications to the design of software systems.
4. Repair System. Ie do repairs if the surgery goes wrong (bugs) in program or design flaws that were not detected when the system testing phase.
5. Improved System. Ie making modifications to the system when there is potential for improvement as the system running for some time, usually the potential for increased system is seen by the manager and then forwarded to the specialist information for managers as desired modifications.

Phase Implementation

In the fifth stage of the SDLC, there are some things to do, namely:

1. Testing, the test results of the program code has been generated and the physical design phase. The purpose of testing is twofold. And the system developers, should be ensured that the program code are made freely and syntax and logic errors. And the user side, the resulting program should be able to resolve the existing problems on the client and the new system should be easy to administer and understood by end users.
2. Installation. After graduation testing program, the software and hardware will be installed on the client organization and formally put into use to replace the old system.