Characteristics (Example)

Characteristic COLOR is created without a change number. It is then changed with the following change numbers.

Note Note

For change numbers, the rank was activated in Customizing for engineering change management, under the control parameters.

End of the note.

Change no.	Validity	Maint. Value	Rank	Maintenance
CHG_01	Miller, Smith	Miller, Smith	10	Values ‘Red’ and ‘Blue’ maintained
CHG_02	Meyer	Smith	20	Value ‘Gray’ maintained

Change number CHG_01 is only effective for customers SMITH and MILLER. This change number was used to assign values ‘Red’ and ‘Blue’ to characteristic COLOR. If you classify an object with change number CHG_01, values ‘Red’ and ‘Blue’ are active.

Characteristic COLOR is changed with another change number, CHG_02. The change is made on the basis of effectivity for customer SMITH, so the maintenance value SMITH is entered. The changes are for customer MEYER. When you call the characteristic with change number CHG_02, you see characteristic COLOR with values ‘Red’ and ‘Blue’. You maintain another value, ‘Gray’ for customer MEYER. If you classify an object with change number CHG_02, values ‘Red’, ‘Blue’, and ‘Gray’ are active.

Under the following circumstances, no valid status of a characteristic can be found:

Characteristic COLOR is created with a change number. The a change number has a higher rank than the change number you want to use to change the characteristic.

Priority of change numbers:

Change no.	Rank	Maintenance
CHG_01	20	Characteristic COLOR created
CHG_02	30	Value ‘Gray’ maintained
CHG_03	10	Change statuses of CHG_01 and CHG_02 are not found, because these change numbers have a higher rank. You see a message telling you that the characteristic does not exist or is not valid.

Characteristic COLOR is created with a change number. The change number contains a parameter value that is not for one of the effectivity parameters that were created when the change number was created.

Change no.	Maint. Value	Rank	Validity	Maintenance
CHG_01	Miller, Smith	10	Miller, Smith	Characteristic COLOR created
CHG_02	Smith	20	Meyer	Characteristic changed and value ‘Gray’ maintained
CHG_04	Cohen	40	Cruz	The initial status with change number CHG_01 cannot be found, because the parameter value COHEN is not one of the parameters values of CHG_01. Characteristic COLOR is not known in this context.

Characteristics (Example)

Under the following circumstances, no valid status of a characteristic can be found:

See also: