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From the 13th version of GiD, a new problemtype system has been developed (based on the customlib library). It offers more powerful integration tools, and a more efficient and user-friendly way to interact with the data. It uses a single .spd file to describe general properties, materials, conditions and units (as a tree with xml syntax). All this data is showed shown in a 'tree view', and materials and conditions are associated to groups of entiesentities.
The 'classic' problemtypes system is currently also supportd supported by GiD, but it is considered deprecated, as the new system offers many advantages. Information about how to create a problemtype using the 'classic style' can be found in the Annex of this manual.
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