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La fase di implementazione: sviluppare un programma di implementazione

  • Note di Apprendimento
  • Revisione degli argomenti
    BUTERA Kazamarande J.
    CD
    BUTERA Kazamarande J.

    Implementing a new system or changes of the existing system needs planning. It could be planning for the cutover or trying it out for small number of people before letting everyone experience the changes or the new system.

    Tashika B.
    US
    Tashika B.

    Scheduling is important

    Hermina S.
    LC
    Hermina S.

    From the given chart is the "PHASED" system showing the use of the TRIAL system?

    Morne V.
    ZA
    Morne V.

    As the name suggests, parallel system implementation is where two systems (the current and the new ones) are being run at the same time to perform the same job. While this duplicates the work, there are some significant advantages to this type of system.

    Thomas Haingura M.
    NA
    Thomas Haingura M.

    Where the new system requires the old hardware and/or software to be removed, and it is not possible to have a cutover program or parallel systems, the only option available is the use of a trial system. This is where a small version of the system is set up and tried before the widespread introduction of the system. This trial emulates all aspects of the computer system to ensure that it will work properly. It aims to reproduce as closely as possible the "real life" situation the system will be used in. If the system is to be used in a number of locations, often this trial will occur in a single location which crosses over to the new system and evaluates its performance until it is satisfactory, at which time it is then introduced to the rest of the company.

    Ahmed Muwafaq H.
    IQ
    Ahmed Muwafaq H.

    well done

    Evelyn D.
    GB
    Evelyn D.

    Implementing a new system or changes of the existing system needs planning. It could be planning for the cutover or trying it out for small number of people before letting everyone experience the changes or the new system.

    Ei Shwe Sin O.
    MM
    Ei Shwe Sin O.

    Once all of the elements of the new system are in place, the next step is to develop the implementation schedule (or cutover), and finally to cut over to the new system.

    Odongo M.
    UG
    Odongo M.

    Information Technology -> The Implementation Phase: developing an implementation schedule The Implementation Phase: developing an implementation schedule Once all of the elements of the new system are in place, the next step is to develop the implementation schedule (or cutover), and finally to cut over to the new system. Most systems have a staggered introduction - that is, elements of the system are introduced one at a time so that it is possible to ensure that they are working as intended before the next element is introduced. This is a common approach as it allows the developers to quickly isolate problems in individual sections of the system. If more than one element of the system is introduced at the same time and there is a problem, it may take some time to isolate where the problem is occurring. This staggered introduction is commonly referred to as a "cutover". This is because the two systems cut over one another as each element is introduced. This is by far the most preferred method of introducing a new computer system however there are times when it is not possible to do this. Where the ability to introduce the system in sections is not available, - for example, the new system is not compatible with the existing equipment, which will be disposed of when the new system in commissioned - a different implementation method must be used. Most commonly, it will be one that involves the use of parallel systems. As the name suggests, parallel system implementation is where two systems (the current and the new ones) are being run at the same time to perform the same job. While this duplicates the work, there are some significant advantages to this type of system. As the performance of the existing system is a known quantity, it gives us something to compare the performance and accuracy of the new system to. Often parallel systems will operate for a month or two before the old system is decommissioned. The biggest problem with parallel systems is that the duplication of the work can be costly however this must be viewed against the security of the knowledge that if the new system under performs, the old system can be kept operating until such time as all problems with the new system are sorted out. Where the new system requires the old hardware and/or software to be removed, and it is not possible to have a cutover program or parallel systems, the only option available is the use of a trial system. This is where a small version of the system is set up and tried before the widespread introduction of the system. This trial emulates all aspects of the computer system to ensure that it will work properly. It aims to reproduce as closely as possible the "real life" situation the system will be used in. If the system is to be used in a number of locations, often this trial will occur in a single location which crosses over to the new system and evaluates its performance until it is satisfactory, at which time it is then introduced to the rest of the company.

    Manish K.
    NP
    Manish K.

    This course has given information about old and new system with the help of effective chart. Simply, old systems have to be replaced by effective new systems for comfortable operation of an organization.

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