As a new Yocto Project developer, I need to understand the purpose of key variables when writing a basic BitBake recipe. Using the Yocto Project documentation, identify and provide the purpose of the `DESCRIPTION`, `LICENSE`, and `SRC_URI` variables, specifically from the 'Variables Glossary'.
Navigate to `https://docs.yoctoproject.org/`. Click on the 'Variables Glossary' link. Use the alphabetical index or scroll to locate the definition for `DESCRIPTION`. Use the alphabetical index or scroll to locate the definition for `LICENSE`. Use the alphabetical index or scroll to locate the definition for `SRC_URI`. Extract and state the purpose of each variable.
Successfully navigate to the 'Variables Glossary' section. State the purpose of the `DESCRIPTION` variable as 'A short, one-line description of the package.' State the purpose of the `LICENSE` variable as 'The list of source licenses for the recipe.' State the purpose of the `SRC_URI` variable as 'Used in recipes that fetch local or remote files.'