diff --git a/lections/IIS_lec_7.pdf b/lections/OATD_lec_7.pdf similarity index 100% rename from lections/IIS_lec_7.pdf rename to lections/OATD_lec_7.pdf diff --git a/lections/IIS_lec_7.pptx b/lections/OATD_lec_7.pptx similarity index 99% rename from lections/IIS_lec_7.pptx rename to lections/OATD_lec_7.pptx index 2885121..733904f 100644 Binary files a/lections/IIS_lec_7.pptx and b/lections/OATD_lec_7.pptx differ