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Chapter 7 Business Interfaces Drive Collaboration • 111


            be managed by continuously mapping the detailed project plan to the
            completed implementation activities.
              The IT operations department typically works differently. The daily
            activities are less structured than projects, and they are managed
            through the hierarchy of the IT operations department. A certain
            amount of rigidity is needed, as the transactions of an organization often
            have contractual value and need to be protected. One of the main con-
            trol mechanisms for the IT operations department is the service level
            agreement, which specifies the needed performance and capacity
            (speed and number of transactions) of systems, stability of systems
            (planning and unplanned downtime), or the quality of support. In order
            to make sure the service levels are reached, there are many internal
            performance indicators, such as tracking surplus capacity in terms of
            computer memory; processor cycles, and network bandwidth; and, with
            certain regularity, exercises in disaster recovery are conducted and
            monitored. From a financial point of view, the majority of system costs
            are usually incurred during the operational phase, not the implemen-
            tation phase. Managing the total cost of ownership (TCO) is an impor-
            tant overall objective for IT operations.
              The business interface between IT development and operations
            mostly consists of taking new developments into production. Those can
            be new systems or modifications to existing systems. There is typically
            a strict process that needs to be followed for development, testing,
            acceptance, and production (DTAP). In a classic situation this is a
            process where the IT operations department has rules about accept-
            ance, informs IT development about those rules, and tests compliance
            of those rules ex post. The process often leads to frustrating, long, and
            difficult implementation processes. A more collaborative approach is
            needed. See Figure 7.6.
              Business interface metrics for this process could include the moni-
            toring of handover time per function points and the number of full-time
            employees (FTEs) involved in the handover process and establishing a
            risk factor for acceptance. The larger and more complex a system is, the
            more function points it will have and the longer handover will take. It
            might be a good idea to also introduce a risk factor for acceptance.
            Acceptance here means the success of taking new developments into
            production. At the beginning of the implementation project and at all
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