Shakyground’s imput strategy

Here we should talk in more detail about SHAKYGROUNDs input philosophy. As mentioned earlier, we understand “models” as an entire set of input parameters, in other words a complete stack of our electronic sheets consisting of the “Source” sheet, the “Strata” sheet, the “General sheet” the “Response Spectrum” sheet, the “Receiver” sheet and the “Output” sheet. If you save a “model” to the model data base, the entire stack will be stored there. You can retrieve a previous model as explained above, that is you load all sheets belonging to the chosen model. You may now understand, by the way, what SHAKYGROUNDs catalogs are good for. The catalogs are the place where the information of single sheets, in particular the “Source” and “Strata” sheets, are stored. Since you can access single sheets from the catalog it is possible, for example, to create a number of source models during a session, store them to the catalog and recall them later. This particularly useful if you don’t want to change the parameters in the other sheets, like the geological model in the “Strata” sheet, general parameters for the seismogram generation (sheet “General”) etc. We’ve adopted the same strategy for the parameters on the “Strata”sheet. It is thus possible to recombine source parameters and geological models in a very easy and effective way. If you want to change the source parameters in a in a seismic zoning project with 100 sites you have to edit the”Source” sheet only once in order to be ready to process 100 new models. Without the possibility to retrieve single sheets from the catalog you had to edit every single of the 100 models in order to consider the new source. If the user desires he can work only with the catalogs without accessing the model data base. In large seismic zoning projects this can be of advantage since the use of disk space is considerably reduced.