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System governance in pictures
System governance can be summarised in just three pictures.
The scope of system governance can be illustrated using gear wheels.
The value of system governance can be described using force field diagrams. A force field diagram shows a desired change. On the left are forces that drive the change, and on the right forces that restrain the change. The size of the arrows shows the strength of the force.
This example shows the forces driving and restraining the implementation of a business process management (BPM) approach to better align IT systems with business requirements and to make IT more responsive.
The main drivers are a lack of responsiveness in IT and a need for new process support. Existing systems could be better exploited, and there is a need to improve the viability of existing systems.
The main restraining forces are cost and the difficulty of working with existing legacy systems. The IT organisation may not be confident to lead business process work. A BPM strategy may not have the long-term support it needs to be a success, and change is hampered by a lack of system knowledge.
On balance, the restraining forces are greater than the driving forces.
System governance changes this picture.
System governance makes existing systems more viable, which increases the driver to exploit them better, but reduces the pressure to increase their viability.
System governance increases knowledge of existing systems, makes them easier to work with, and provides a framework for the long-term support for BPM. System governance demonstrates how well the IT organisation meets existing responsibilities, and builds confidence for contributing to business process management.
On balance, the driving forces are greater than the restraining forces and BPM becomes viable.
We can use different force field diagrams for different situations, to show the different ways in which system governance delivers value. In each case, the contribution of system governance is to strengthen positive forces and to weaken negative forces.
Lastly, the way that system governance works can be summarised as a feedback loop.
IT decision making - from strategy to design - specifies the work required to implement and change IT systems. System governance completes a feedback loop from systems back to the decision making process, which guides decisions to better manage systems for the long term.Next: Windows registry design
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