Decision support functions embedded in GIS

• The value of any GIS will be greatly improved if embedded with a proper decision support. In this way it will be possible to have the GIS supporting in complex and tricky, multi criteria decisions regarding for example the best localization of new constructions and activities. The common way of doing this is by help of overlays, one overlay for each criteria or variable of importance for the decision. This procedure, however, has already proven itself to have severe drawbacks as it is restricted to the binary rule of a logical AND operation. In this way an infinitesimal failure in one criterion may rule out an otherwise perfect alternative. With an approach based on Fuzzy Logic and Soft Computing, on the other hand, both trade offs between variables and flexible AND-OR rules may be put to use. The so called OWA-procedure is demonstrated to meet those criteria common in real life situations. However, OWA does not solve all problems and further requirements on a spatial decision support are identified.

Ämnesord

NATURVETENSKAP  -- Data- och informationsvetenskap (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences (hsv//eng)

Nyckelord

Decision support systems

GIS

fuzzy logic

Informatics, computer and systems science

Informatik, data- och systemvetenskap

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)