Explain 8.4 Direct Conversion
8.4.4 Direct Conversion In this conversion method the old system is completely dropped and the new system is completely implemented at the same time. The old system is not available after implementing the new system. Before implementation, it must be ensure that the new system is completely functional and operational. This conversion is used when it is not possible to continue operating both the systems together. The data which is used in the new system should be imported from the old system and converted. Before the conversion takes place, users must be fully trained in the operation of the new software system. Although, it is the quickest method of all the implementation methods, it requires careful planning. Training
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The objective of system implementation is to build a system which works properly, install it in the organization and replace the old systems, prepare system and user documentation and train the users. There are three types of implementation: Implementing a computer system to replace a manual system, implementing new computer system to replace an existing one and implementing a modified application to replace the existing system using the same computer. The implementation phase is costly and time consuming stage of the system development life cycle. The major steps involved in implementation phase are: Conversion, User Training and Documentation. Conversion is the process of changing from one system to another. It involves: System conversion, Procedures and documents conversion and File/ database conversion. Documentation is composed of the requirement instructions, reference guides, tutorials and related materials and also explains hardware or software components. System documentation is prepared for the person who will in charge the system operating in the future. System documentation contains complete information about system’s design specification, its internal workings and functionality. System documentation can be internal and external documentation. The main objective of the implementation process is to create and design a system according to the design specification and system requirements. The system is constructed using suitable technologies. This process combines the system definition processes and the integration process. Once a decision has been made to change to a new system, the next activity is to implement it. In terms of System Life Cycle approach, there are four main ways to convert to a new system. These are: parallel, pilot, phased and direct
The objective of system implementation is to build a system which works properly, install it in the organization and replace the old systems, prepare system and user documentation and train the users. There are three types of implementation: Implementing a computer system to replace a manual system, implementing new computer system to replace an existing one and implementing a modified application to replace the existing system using the same computer. The implementation phase is costly and time consuming stage of the system development life cycle. The major steps involved in implementation phase are: Conversion, User Training and Documentation. Conversion is the process of changing from one system to another. It involves: System conversion, Procedures and documents conversion and File/ database conversion. Documentation is composed of the requirement instructions, reference guides, tutorials and related materials and also explains hardware or software components. System documentation is prepared for the person who will in charge the system operating in the future. System documentation contains complete information about system’s design specification, its internal workings and functionality. System documentation can be internal and external documentation. The main objective of the implementation process is to create and design a system according to the design specification and system requirements. The system is constructed using suitable technologies. This process combines the system definition processes and the integration process. Once a decision has been made to change to a new system, the next activity is to implement it. In terms of System Life Cycle approach, there are four main ways to convert to a new system. These are: parallel, pilot, phased and direct