Effect of Modifications on Dynamic Rules

A dynamic rule will automatically respond to changes which affect the attributes referred to in the rule.

For example, we set a rule on YLEN of /MYBOX to be (YLEN OF /FRED * 2). Thus if YLEN on /FRED changes then YLEN on /MYBOX will be updated automatically. However there are reasons why the automatic propagation of dynamic rules may fail, as follows:

1. The elements are in different DBs and the DB containing /MYBOX is not in the MDB

2. The elements are in different DBs and the DB containing /MYBOX is read only

3. It is not possible to claim /MYBOX

4. /MYBOX is locked

5. There is a DAC preventing the change

Note also that only static rules are not automatically updated. For these reasons there are commands to verify that rule results are up to date.