Reverted changes to test document for 17.1.1 - I should have used the test document proper ("Test Document DSoilModel.xlsx").
Adapted the test document proper (some typos, added C-Phi/Su-berekend where necessary). Created an empty test document for version 17.2.1 (copy of the test document proper).
Small textual correction in functional design (formulating the choice of interpolation method slightly clearer) Adaptation of the test plan and the GUI test scripts to match the new requirements (about the choice of interpolation method and the new strength model) Related to Issue [DSB-916] Related to Issue [DSB-897]