Use reverse domain name format.

CMakeLists.txt

@@ -73,7 +73,7 @@ ecm_optional_add_subdirectory(liblearnerprofile)
 ecm_optional_add_subdirectory(autotests)
 
 # files to install in the artikulate project root directory
-install(PROGRAMS artikulate.desktop  DESTINATION ${XDG_APPS_INSTALL_DIR})
-install(FILES artikulate.appdata.xml DESTINATION ${SHARE_INSTALL_PREFIX}/appdata/)
+install(PROGRAMS org.kde.artikulate.desktop  DESTINATION ${XDG_APPS_INSTALL_DIR})
+install(FILES org.kde.artikulate.appdata.xml DESTINATION ${SHARE_INSTALL_PREFIX}/appdata/)
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)

artikulate.appdata.xml → org.kde.artikulate.appdata.xml

 <?xml version="1.0" encoding="utf-8"?>
 <component type="desktop">
-  <id>artikulate.desktop</id>
+  <id>org.kde.artikulate.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-2.0+</project_license>
   <name>Artikulate</name>