OPA – Dynamic Visibility

Dynamic Visibility

In certain situations, it is necessary to display or hide elements of the Policy Automation Interview. The easiest way to obtain this OPA – dynamic visibility is to create rules, whose conclusion can act as a basis for the Visibility. For example, if the color is red, then show the size question. And inversely – If the color is not red, then do not show the size question.

Such a method is simple and the result is attractive to the End User. It can be implemented with the Question displayed during the Interview, referencing the rule you have created. In the following screenshot you can see an example with the relevant Boolean Attribute referenced in the Attribute Input Control properties.


Mandatory and Read-Only

A similar approach can be taken to render a Question mandatory, or when a Question should have it’s Value displayed as read-only. The existence of a Boolean Attribute to reflect your business logic is once again a pre-requisite, but the process of aligning it with an Input Control is the same.



List of Values – Dynamic Values

A further area where such dynamic visibility can be useful to make the end user experience more enjoyable, is in the area of Lists of Values. If a Attribute has a List of values, some Values may need to be hidden in certain circumstances. The same dynamic effect can be achieved by associating each Value with a Boolean Attribute in much the same way as the previous examples.



Better for the End User

Simple logic such as this can increase the engagement of an End User – after all, the easier it is to complete something with the minimum of irrelevant questions or data the more likely you are to see happy End Users. Until next time, see you soon.



Author: Richard Napier

Richard Napier joined Siebel Systems in 1999 and took up the role of managing the nascent Siebel University in Southern Europe. He subsequently was Director of Business Development and Education for InFact Group (now part of Business & Decisions) for 8 years. He now runs Intelligent Advisor IT Consulting OÜ. Owner of intelligent-advisor.com, he also is Co-Founder of the Siebel Hub.

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