This document describes a legal tech solution for open source software (OSS) compliance developed by Dr. Hendrik Schöttle. The solution consists of a license matrix that standardizes the evaluation of OSS licensing obligations and maps specific software use cases against the licenses to check for conflicts. Key features include full documentation of evaluation steps, ability to parameterize factors for different risk assessments, and percentage-based risk scoring to account for grey areas. The tool aims to provide a clearer overview of OSS compliance than traditional memo-based approaches. Dr. Schöttle's law firm helps clients implement the solution by defining customized use cases, checking applicable license rights and obligations, and matching use cases to licenses to identify conflicts.