Those users, who develop new rule data bases or modify existing ones
in order to improve analysis results, always need to test their changes
before the rule data base can be applied in routine IR interpretation.
After some modifications it would be a difficult approach to keep all
recent changes in the rule data base in mind and also concentrate on the
IR interpretation results. The software offers a convenient system which
tracks all changes to assist the user during optimization. Recent changes
will be logged and can be undone stepwise up to a certain amount. The
system needs to be activated manually in the software.
Enabling the Change Tracking System
To enable the change tracking system, please follow the steps below:
From the Rules menu,
select Track Rule Changes.
In the dialog, check
the Enable Undo Tracking checkbox.
Click the Close button to apply settings.
From now on, all changes in the rule data base will be tracked and logged.
Every time the user saves the rule data base, he might enter a new checkpoint
name. Please refer to the chapter saving for details.
Saving a Rule Data Base with Tracking enabled
If the change tracking system is enabled you can set a new checkpoint
by saving the rule data base.
You will be prompted to enter a meaningful name for the current checkpoint.
This should be a word or hint which summarize the contents of your recent
changes. All operations and changes in the rule data base can be recalled
later on under this checkpoint name.
The saving procedure is described in more detail below:
Perform your changes in the rule data base.
From the File menu,
select Save.
Enter a meaningful
summary of your changes into the
text field of the Rule Data Base Undo
Information dialog.
Click the OK button.
The rule data base is saved then and you can perform spectrum
analyses or validations
to test your modifications.
Review recent Changes in the Rule Data Base
To review all recent changes since you started the change tracking system,
please follow the steps described below:
From the Rules menu,
select Track Rule Changes to open
the dialog.
On the left of the dialog you see a list of
all checkpoints which have been stored recently. If you click a particular
checkpoint, you can see the changes on the right side of the dialog accordingly.
Changes are shown in that way, that the original condition of the changed
item is shown in the upper part. In the lower part, the item is shown
with changes.
Example:
In this example, the functional group 'Aliphatic
Ether' contained the wrong priority for certain vibrations. The user corrected
the priorities to 'low' as can be in the lower right part of the dialog.
Undo Recent Changes in the Rule Data Base
It is not easy for the analyst to foresee all consequences of changes
in the rule data base. After some testing or even when looking for a completely
different issue you might become aware of changes you have made some time
ago which now cause false or unsatisfactory results. To undo these changes,
please follow the steps described below:
From the Rules menu,
select Track Rule Changes to open
the dialog.
From the list of checkpoints on the left, select
the checkpoint to be undone.
Click the Undo button to restore the original condition
shown in the upper part.
Can I undo multiple changes?
If a checkpoint includes multiple changes,
they cannot be undone one by one. It is only possible to undo all changes
of a checkpoint. If this might be required, you need to save intermediate
steps more often.
Deleting tracked Changes
If you might have used the change tracking system thoroughly, the list
of checkpoints will be rather long after a while. Many of the checkpoints
will become obsolete because changes did real improvements on the rule
data base. Such changes will never be subject of undo anymore and could
be deleted without danger in order to reduce the list to important items.
Deleting checkpoints means accepting changes
forever!
To delete a checkpoint, please follow the steps below:
From the Rules menu,
select Track Rule Changes to open
the dialog.
From the list of checkpoints on the left, select
the checkpoint to be deleted.
Click the Delete button to remove the checkpoint from
the list.
Deleting a checkpoint cannot be undone!
Be careful when deleting checkpoints. They
will be deleted without further notification and deletion cannot be undone!
To delete all checkpoints in the list at once, click the Delete
All button.
