Operating instructions

The “Formulation” application
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7.7 Notes on changing existing components and formulae
It is possible to change the definition of stored formulae and components. The following rules apply for this:
– When a formula is being processed, neither stored formulae nor components can be
changed.
– If you want to change a component that is part of a formula, the error message opposite
appears. Should you still wish to change the component, it must first be deactivated
in all corresponding formulae. If you would like to include the component in the cor-
responding formulae again after modification, it must be explicitly selected from the
component database, activated in the formula, and the nominal value and tolerances
must be re-entered. We recommend that formula names and IDs are changed in all
cases. This avoids confusion with earlier formulations, which have been carried out
using the old definition of the corresponding formula.
– To remove a component from the database, simply delete its name or ID. However, this
is only possible if the component is not part of a formula (see above).
– Formulae cannot be deleted from the database. If a formula is no longer required,
deactivate it. The only way to permanently remove a formula from the database if it is
no longer required is to overwrite it with a new one.