They discover capabilites of the system which were originally not required. Hence, an increase in benefits of 2 percent per year is assumed in consultation with the GIS users. In the results demonstrated here the benefits due to increased efficiency are predominant. In other cases, organisations can put emphasis on other benefit categories, e.g. the external use can predominate. The realization of the anticipated benefits needs managing like other tasks during GIS implementation and use.
Benefits management includes the responsibility for realizing benefits and review performances.
They are supported by the people involved who will be responsible for the achievement of these benefits. The potential GIS users are able to identify and value different categories of benefits. The same goes also for strategic and external benefits which are often regarded as non-quantifiable. There remain some benefits which are noted by city departments without assigning specific monetary values. The number of these non-quantified benefits must be minimized.