This document provides guidance on creating sample data and business rule design documents for an S1000D implementation project. It discusses determining how much of S1000D is needed for the project, structuring business rule design documents, extrapolating decisions into a BREX data module, creating sample data modules, and measuring success. The document emphasizes that addressing business rule decisions, authoring design documents, and creating sample data are important for achieving project success and reducing startup confusion. It provides examples and questions to consider to help fully address business rules and get the most benefit from the sample data.