KISSstands for"keep it simple, stupid", OR "Keep it Short, Simple". It is a design principle. For more interesting information on wikipedia ==> Click here
A good paper "ON THE RIGHT PATH" BY CAROL DRUCKER, S.E., P.E., P.ENG. ==> click here.
for Ss & S1 values can be obtained form the ASCE7‐05 / IBC 2006 code or local code or for anywhere not listed in codes, Ss & S1 values can be obtained from USGS Geologic Hazards Science Center website https://geohazards.usgs.gov/secure/designmaps/ww/signup.php
#ASCE_Spreadsheet
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