This property identifies a specific E29 Design or Procedure used in an E11 Modification.
Modification may be carried out in order to ensure the preservation of an object and not just as part of the creative process.
The property differs from P32 used general technique (was technique of) in that the E29 Design or Procedure referred to is specific and documented rather than simply being a term in the E55 Type hierarchy. Typical examples would include intervention plans for conservation.
