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Show CHAPTER 5 CONCLUSION It is well-known that "the user is the weakest member in the chain of causes that determines number of faulty computer runs" [47], and that the problem specification is the most time-consuming and error-prone step. Investigated is an attribute modelling technique that minimizes the user input and provides visual checks for input preparation and output interpretation. It is substantially different from conventional approaches in its unique way of 1. attaching nongeometric attributes to the problem geometry, and 2. imposing geometric interpretation on nongeometric attributes. It may have an impact on the prototype of the neutral file format because of its dynamic association of the analysis parameters. As demonstrated in the experimental implementation of this modelling technique, notions of node and element eventually disappeared because of its problem attribute specification, automated discretization process and output interpretation in color variation. In all methods, computational requirements increase drastically as the number of elements increases. Hence, long turn-around time for fixing input errors in some cases can create frustrating experiences to the user. The attribute modelling technique described in this thesis, however, provides a natural and succinct input process that is mesh independent, which means that the user can start with a very coarse mesh configuration to shorten the turn-around time for faulty runs and once all the parameters are set correctly, the very same problem specification is guaranteed correct for finer meshes. Even with slight change in geometry, e.g., to simulate the domain deformation, as long as the local orientation induced from the parametrization of the geometry remains in- |
