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Gladys Mba
Mapa Mental por , criado more than 1 year ago

A level, A2 IT (Chapter 5) Mapa Mental sobre 5d- Changeover and Installation, criado por Gladys Mba em 27-01-2017.

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Gladys Mba
Criado por Gladys Mba aproximadamente 8 anos atrás
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5d- Changeoverand InstallationDirect (Plunge)ParallelPhasedPilotOld system runs until it is timefor new system to be usedOld system immediately stoppedand new system installed straightafterEveryone starts using newsystem at the same timeData from old systemtransferred to newDate set for newsystem to goliveOld system continues to run asnew system is being installedFor a period of time bothsystems are run in parallelX- At this time data has tobe entered into bothsystems in order for themto be up-to-date.Old system retired once there isconfidence in new systemPart of the new system areintroduced one at a timeAs one module is introduced in thenew system, it's correspondingmodule in the old system isstopped.X- The two systems haveto be very compatible andhave to share data easily.Can be combined with parallelfor each moduleA group is an organisation are exposed tothe system before others in the organisationAny problem with system or installation isidentified and fix before full lance of systemCan be combined whichphased and plotO- Group used in pilot can help otherwhen training using cascading waterfallmodelClique duas vezes aqui para editar o textoClique e arraste este botão para criar um novo tópico