It is important to develop your documentation and then discuss it with all parties that have an interest in the success of the project. Discussing the findings and recommendations in detail is important to the success of this phase of the project and the success of the more detailed design phase.
After you have conducted meetings to discuss the findings and recommendations, there will be items in the high-level design that must be modified or changed. Ensure that you capture the changes and include them in the documents that you created during this phase. This ensures that you have accurate information throughout the life cycle of the project. The information in these documents will be leveraged during the design phase, so it needs to be complete and accurate.