In the project I have given in Appendix 1, I have given the Z4 ground in "Behavior spectrum function" . After making the calculation, ground group A is written on the output of the calculation. According to TDY 2007 table 6.6- local soil classes table it should write C or D. SUGGESTION 1: For the Ground group to be written on the output of the account, as I marked in the "Behavior spectrum function", it should write accordingly. SUGGESTION 2: Do not write floor group information text on the account output. (I checked, other software does not write this information article.)