This file originates from package/apps/TimeZoneData/oem_template/data_app. OEM-INSTRUCTION See below for the purpose of this directory and changes OEMs must make. This directory contains a suggested structure for building an OEM version of Time Zone Data app (real and test versions). For example, you can copy it cp -r data_app ${ANDROID_BUILD_TOP}/vendor/oemcorp/apps/TimeZoneData Where is your company name. ...then read / change all the things marked with OEM-INSTRUCTION. The intended use is for inclusion in a tapas build to generate .apks. The targets define the real version of the app, and some test versions that can be used by the supplied xTS tests. The generated .apks are expected to be signed and checked in as "prebuilts" for the system image and for xTS testing. The main, signed .apk can also be uploaded to an app store and used to update existing devices. See oem_template/data_app_prebuilts for rules that can be used to include the prebuilts in the system image and tests. See oem_template/xts for rules that can be used for xTS testing.