Francisco Castillo (auth.)'s Managing Information Technology PDF

By Francisco Castillo (auth.)

ISBN-10: 3319388908

ISBN-13: 9783319388908

ISBN-10: 3319388916

ISBN-13: 9783319388915

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Operations needs to ensure that there is no increasing backlog of tickets, which will result in an ever increasing backlog as time goes on. – Analysis of tickets per team. These are monitored for unusually heavy activity and analyzed for the underlying reason. – Repetitive incidence tickets which usually point to an underlying problem causing multiple generation of incidences. – Status of incidence tickets after a major project has been implemented. Usually, incidences will spike after go-live but should continuously decrease afterwards.

In which the Extraction Transformation Loading (ETL) program extracts raw data from the ERP system and loads it into the Datawarehouse. 1 Information Technology Service Management 25 Fig. 3 Sample datawarehouse architecture reporting tools need, and stores these report formats into the DWH database. If, for example, the following schedules are observed: • ETL: 1:00–6:00 am, weekly • Report generation: 6:00–8:00 am • Access to the reports by users: 8:00 am Then, this will help the DBA understand that massive writes into the datawarehouse will occur during 1–6 am period that is run weekly, report generation which is a combination of read (mainly) and writes at 6–8 am, and massive read transactions at 8 am.

On the other hand, capacity management refers to the allocation of resources to the different applications so as to ensure that there is no performance degradation to the service. Capacity management is especially relevant during the go-live phase of a project as it is the moment of truth in terms of how much resources are actually needed by the new system. During the lifecycle of a service, capacity requirements will also change due to the changing environment in which the service is used. Some of these aspects will be explained briefly in the next few sections.

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Managing Information Technology by Francisco Castillo (auth.)

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