The Traditional Systems Development Life Cycle

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 The Traditional Systems Development Life Cycle




System development life cycle (SDLC), a system development method traditionally used to carry out large-scale information technology projects. There are 6 phases of the SDLC, namely:

·      System Investigation

Early stage of the traditional SDLC is a system investigation. System investigation describes the various business issues or business opportunity, by using a feasibility study. It depends on Go/No Go decision. The SDLC is upper case tool for organization and basic business need.

Feasibility study, analyze which of the three the best solution according to their business problems, three the solution is as follows:

1.  Do not do anything, and keep using the existing system, without any change.

2.  Modify or develop a system that is already running.

3.  Building a new system.

There are three (3) types of feasibility study, namely:

Technical feasibility, determine whether the company to build or acquire the hardware, software and communication components needed to solve business problems.

Economic feasibility, determine whether the project has a financial risk that can be handled, and the organization has the time and cost to complete the project.

Behavioral feasibility, related to human problems in the system development project

After a feasibility analysis is done, then the decision "Go / No-Go" by the "steering committee", done.

·      System Analysis

While the construction project was approved by the entire members, the stage system analysis can be performed. System analysis, identify any issues that businesses planned by the organization to be able to be solved by the use of information systems. The main objective of this stage is to gather information about the current system, in order to determine the need for the addition of new systems development or system.

·      System Design

System design, describes how a system can solve business problems. At this stage made technical system specification, which can be broken down as follows:

1.  System output, input and user interface.

2.  Hardware, software, databases, telecommunications, personnel and procedures.

3.  Blueprint of how these components are integrated.

 

 

 

 

 

·      Programming & Testing

Programming involves the translation of a system’s design specification into computer code.

Testing:  It checks to see if the computer code will produce the expected and desired results under certain conditions. Testing is designed to delete errors in the computer code.

·      Implementation

Implementation is the process of transition from the old system to the new system. There are four types of conversion strategy, namely:

1.  Direct Conversion: The old system is stopped and the new system is run at the same time.

2.  Pilot Conversion: Introducing a new system in one part of the organization, for example, in one functional area.

3.  Phased Conversion: Introducing a component of a new system, for example the individual modules.

4.  Parallel Conversion: This strategy has been used by organizations rare, where the old system and the new system is used on an ongoing basis from time to time

·      Operation & Maintenance

Once implemented, the new system will operate in a certain period of time until the system no longer meets the desired objective of the company. The system requires maintenance.

System needs several types of maintenance which are as follows.

*Debugging is a process that is continuously taking place in the system.

*Then the second is the updating, updating the system to accommodate changes in business conditions.

*The third type is the maintenance of the addition of new functionality without disrupting operations.

 

Comments

  1. Anamkhan27 September 2021 at 13:33

    Spreading knowledge and information is best for your business studies

    ReplyDelete

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