Indicates the level of detail of the project stage. Suggestions, should be tailored to national rules: <ul> <li>feasibility (rarely in data)</li> <li>pre-design</li> <li>draft design - preferred variant</li> <li>detailed design - for quotation/to be ordered, supplier neutral</li> <li>detailed design - supplier specific</li> </ul> de-DE: Planungsphase