Standard parameters are set used by the program ETABS through a very simple structure. Then you rebuild the samestructure but step by step in order to manually enter those characteristics that included further give full basic model. Then include 2 types of dynamic analysis, static and modal equivalent spectral CEC2000 following the recommendations for what you use a more complicated model. Finally, it includes improvements such as ladders, foundation, slab on grade, but fundamentally reinforced walls with and without heads, and the latter with openings.
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Manual Program for Use in ETABS Seismic Analysis of Structures
http://www.4shared.com/office/zvNjT5XL/MANUAL_PROGRAM_FOR_USE_IN_ETAB.html