A very brief document (three to seven sparse pages) that describes the CoreDomain and the primary interactions among CORE elements.

If the distillation document outlines the essentials of the CoreDomain, then it serves as a practical indicator of the significance of a model change. When a model or code change affects the distillation document, it requires consultation with other team members. When the change is made, it requires immediate notification of all team members, and the dissemination of a new version of the document. Changes outside the CORE or to details not included in the distillation document can be integrated without consultation or notification and will be encountered by other members in the course of their work. Then the developers have the full autonomy that XP suggests.


DistillationDocument is mentioned on: HighlightedCore