Rename the obsolete term TOST/Trellis with SD-Fabric
Change-Id: I27602bb9004f409f1e64b568a30c84d09f5b958f
diff --git a/testing/about_system_tests.rst b/testing/about_system_tests.rst
index fcba383..4ea4f6a 100644
--- a/testing/about_system_tests.rst
+++ b/testing/about_system_tests.rst
@@ -11,7 +11,7 @@
component level and integration level tests. Robot Framework will be used for
covering integration tests. Component level test coverage have been
accomplished by leveraging the existing test frameworks that were developed in
-their respective projects. Component level tests include tests for TOST, PDP,
+their respective projects. Component level tests include tests for SD-Fabric, PDP,
SD-CORE areas. For detailed information on component tests, please see their
respective documentation pages.