Interview Questions.

Question 1. What Is A Business Rules Engine?

Answer :

A run-time inference engine that may hyperlink notably readable, declarative, semantically rich regulations to any enterprise items (.NET components), XML files, or database tables. It can evaluate regulations against data and provoke moves primarily based at the consequences of that evaluation.

Question 2. What Is The Tool That I Need To Use To Create Business Rules?

Answer :

You want to use the Business Rules Composer.
This is a graphical tool used for authoring, versioning, and deploying regulations and vocabularies.
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Question 3. What Is A Business Rule Language?

Answer :

It is a rule markup language in XML layout for declarative rule definitions.

Question 4. How Can I Execute A Business Rule In My Orchestration?

Answer :

Using the Call Rules Shape.

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Question five. What Is Used To Create New Vocabulary Definition?

Answer :

The Vocabulary Definition Wizard is used to create vocabulary definitions.

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Question 6. What Is A Policy?

Answer :

A policy is a logical grouping of guidelines. You compose a model of a policy, store it, check it by way of applying it to the records, and, while you are happy with the results, post it and installation it to a production surroundings.

Question 7. Is It Possible To Change Business Rule Policy After It Was Published?

Answer :

No. After regulations are posted it cannot be edited. But if there is a need to have a change in coverage then new version of coverage is to be created.

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Question 8. Does Rule Composer Have Provision Of Adding Else Logic?

Answer :

No, there's no provision of adding ELSE however else logic can applied with greater IF.

Question nine. What Is Long Term Fact And Short Term Fact?

Answer :

The truth is the user information to which rule conditions are carried out.
At layout time a truth is a reference to that data.
 Facts have two classes – Short Term Facts and Long Term Facts.
Consider a loaning method of any Bank. We can assume a “mortgage application” as brief term truth.
Short group records are commercial enterprise facts which adjustments in step with incidence. On the contrary, “hobby rates” do no longer alternate very regularly.
This business facts is regular and we will do not forget it a long term fact
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Question 10. What Is The Difference Between Publishing And Deploying The Rule?

Answer :

Rule alone can't be posted or deployed, it needs to be wrapped below Policy and then posted and deployed.
When a coverage is deployed it is prepared to use and can't be edited whereas while published, policy are not equipped for use.
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Question eleven. Can We Call Policies From .Net Code?

Answer :

Yes. Firstly it desires to be declared (coverage call that is to be known as), surpassed in the reality example and eventually completed.

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Question 12. Can We Call A Specific Version Of Policy Using Call Rule Shape In Orchestration?

Answer :

No, as the decision guidelines form calls the state-of-the-art version of the coverage deployed.

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Question thirteen. What Is Purpose Of Biztalkruleenginedb?

Answer :

This database is a repository for:

Policies, that are units of related rules Vocabularies, which are collections of consumer-pleasant, area-specific names for statistics references in policies.

Question 14. Is There Limit For Versions Of Policies?

Answer :

No.

Question 15. What Is Rete Algorithm, Does It Have Any Relation With Bre?

Answer :

Rete Algorithm is an effective pattern matching set of rules for imposing production rule systems. BRE's inner operating is based at the Rete algorithm.

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Question sixteen. How Does It Differ, Calling The Policy In Call Rules Shape And In Expression?

Answer :

The Call Rules form inside the Orchestration calls only the modern model of the coverage.
To call an older (precise) model from inside an orchestration, the Business Rules Framework APIs is used, which can be called from within an expression.