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A new approach, called a spatial database engine, creates intuitive objects from standard geospatial databases and uses commercial databases to add attributes to the objects. It is particularly useful for distributed databases such as one would find on a network. Modeling and simulation is also benefiting from object-oriented technologies. Simulations were once stand-alone codes.
It is not raw material, but the workmanship, that gives its value to the flowered damask; our grand-dames' sumptuous taffeties and stand-alone brocades are but spun silk-worms' interiors; the fairest statue is intrinsically but a mass of clumsy stone, until, indeed, the sculptor has rough-hewn it, and shaped it, and chiselled it, and finished all the touches with sand-paper.
It is not raw material, but the workmanship, that gives its value to the flowered damask; our grand-dames' sumptuous taffeties and stand-alone brocades are but spun silk-worms' interiors; the fairest statue is intrinsically but a mass of clumsy stone, until, indeed, the sculptor has rough-hewn it, and shaped it, and chiselled it, and finished all the touches with sand-paper.
Similarly, if a new technology were to be modeled, new code normally had to be written, even in cases where good, validated, stand-alone technology models existed. The obvious drawbacks to this approach are that it is costly, often produces inferior simulations for the new additions, and quickly results in extremely large codes with commensurate large code management problems.
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