The document discusses lessons learned about standards for digital content and their implementation. Some key points are: 1. Standards cannot be dictated from the top down alone and require skills to implement; they also exist within a complex environment of other issues like available tools and intended uses. 2. Different users often require different standards based on their needs and context. Open standards are not always the most suitable. 3. Metadata standards can lead to "digital silos" as there are many standards and interpretations; translation between them is difficult. 4. Standards must be flexible to work within an evolving environment and allow content to be reused in different ways over time as needs change.