It is expected that the vision system removes the recipe matching the given ExternalId from its management structures. Whether the vision system also removes the actual recipe content is implementation-defined.

Application Note:

The removed recipe may still be referenced by stored results from the vision system. Therefore, it is strongly recommended that the InternalId of a removed recipe is not re-used by the vision system. Otherwise, traceability of results to recipes will be impaired and the vision system may no be able to fulfil certain external requirements, e.g.the FDA Part 11 requirements for pharmaceutical equipment.

However, this standard makes no requirements on the way the vision system creates and maintains its internal management data.

If there is more than one recipe with the identical ExternalId – e.g. due to local copying and modifying of recipes on the vision system – it is implementation-defined how this ambiguity will be handled. For example, the vision system may remove all these recipes or only the externally defined ones or any number of other possibilities.

If the server chooses to represent recipes in the Address Space, the server shall remove the recipe node in the same way as the vision system cleans up its management structures.