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#Business Rules

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Business rules are the part of InterSystems Ensemble production solution which allow nontechnical users to change the behavior of Ensemble business processes at specific decision points.

When testing a new routing rule, one frequently encountered problem is that messages that seem like they should be getting routed to a target component are not getting routed. This article aims to describe how to determine why the message didn't get routed.

1. Check the Event Log for the router to make sure there wasn't an error evaluating the rule or running any transformations referenced by the rule. If there was, debug that error first.

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Hello

We are in the process of upgrading to 2023.1 for InterSystems Health Connect, and the Business Rule Engine editor is very difficult to use compared to 2022.1. It's difficult to scan over the rules as it all looks the same style with barely any distinction between rules, constraints, conditions, whens etc. There's also tonnes of whitespace, and searching on the page is hit and miss (using Ctrl + F) . I can see the previous editor is still available when you modify the URL, but I'm wondering if we can set it to be the default editor, and if this is something supported.

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Question
· Oct 24, 2016
Multiple Rulesets

Hi,

In my routing rules I'd like to work with multiple rulesets. When running the proces, it only seems to execute the first ruleset.

Is it possible to have multiple rulesets active in the same business rule, or is there another way to not have to jam all rules in the same ruleset?

Thanks in advance,

Joost Houwen

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In this article I will demonstrate the following :

  • Update ReferencesRange(OBX:7) against ObservationIdentifier(OBX:3.1)[TestCode] from database by using custom utility function
  • Update Abnormal Flag(OBX:8) against ObservationIdentifier(OBX:3.1)[TestCode] and ObservationValue(OBX:5)[Result] from database utility function
  • Route Message based on Abnormal Flag(OBX:8)

Below is the primary and transformed HL7 2.5 ORU_R01 message:

Open Exchange app
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Hello Community,

For the Business Rules in a process i want to use a constraint where source could be FromA or FromB.

But looks like the constraint does not allow multiple source values.

Is there a way to provide multiple source in Constraint? Or is there a way in Rules to identify the Source ?

Thanks

Jimmy Christian

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Question
· Oct 29, 2021
Use Rule to call WS 1 to n

Hi all.

I'm trying to create a route rule that can call to a web service according to a parameter of a message.

My first attempt is the following:

I have a common class with all information, BuscarHuecoRequest, and check what is the value of property "CodigoProveedor".

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Hi Community

I'm working on a complex piece of rules that needs to check each OBX and evaluate if 3 of the fields match certain criteria. I've tried to achieve this using a Foreach loop, which does work, however it is not as clean as I wanted it. I was hoping I could assign temp variables inside the foreach loop to make the rules more easier to read, for example @testCode @resultText. This is not support as you can only assign inside a when condition. Before I raise this as an idea, i wondered if there was an alternative way to achieve the same thing?

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Hello ALL!

I am having trouble fining a way to derive (a list, an array, a file doesnt matter yet how it returns) ALL of the targets of a routing rule.

For example lets say I have:

  • a router of class: EnsLib.MsgRouter.RoutingEngine
  • Business Rule: HappyRRN
  • 1 rule set having 5 rules that each send to 1 DTL and 1 Operation (5 targets total)

My intent is to use some utlities we have created to disable all of the target operations of this router if the router errors out.

To do that I need the list of target operations.

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Hello,

I have a slight issue that's causing me some inconvenience when using the rule editor within Microsoft Edge (Version 126.0.2592.81).

Whenever I try to load up any ruleset, the ruleset displays an unhappy face like this:

This has only recently started, when opening up the rule editor in another browser e.g. Chrome, the problem disappears.

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We have a case where we have 1 message coming in, but then sending two messages out to the same location. Even with FIFO sometimes the messages get out of sequence depending on what is need to be done to the message in the DTL before send. Is it possible to call sleep or Halt or write some kind of a function to put a pause in a routing rule between two sends?

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Hi all,

I have a rule to throw a message when there is an error. I want to prevent send the email if the origin of the error is the API to send the email

This is my rule

Now, If there is any error in any process, it works, but if there is an error in MyProduct.BO.SendEmail it is trying to send the error again, and it is a infinite loop.

Is there any way to check what is the origin and don't process if the origin is MyProduct.BO.SendEmail?

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Hi all,

I'm wondering if is possible to call to a BO from a HL7 Route according to a parameter of the HL7 Message

I mean,

According to the identify of the laboratory, I want to call to other TCP process to retrieve information about blood tests.

We are creating the BO using this partern.

LAB.BO.TCP. + name of the laboratory.

The name of the laboratory is stoted in the lookup table T_LABORATORIOS

I've tried to assign the name into a variable and put it in the "send" instruction, but it doesn't work.

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Question
· Mar 3, 2016
Filtering incoming records?

We have a situation where we want to detect and ignore documents/records at the earliest possible point based on certain criteria. We have an existing "CDA Preprocessor" in the workflow which is an XSL transform. This is what our contractors are planning to utilize to "filter" these documents. This doesn't really make sense to me. I see XSLT as a way to manipulate the contents of a document and filter certain peices of data. In my brain, I would use an Ensemble business rule to detect the criteria and route the document as necessary.

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Hello,

I want to access the HL7 Router settings from within the HL7 rule. Goal is to create a New class by extending "EnsLib.HL7.MsgRouter.RoutingEngine".

Then create a PARAMETER ProcessMessage which can be set to an integer value for the HL7 Router.

Create a Rule class and based on the value of this setting ProcessMessage
process/not process the messages.

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Is there a difference in outcome between the two screengrabs below?

In both cases, when certain conditions are met, a transformation is called and the output sent on to two targets. In the first case we surmise the transformation is called twice, and the output of the first run sent to the first target, the output of the second run to the second target. In the second case we surmise the transformation is called once, and the output duplicated and sent to the two targets.

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Question
· Jun 21, 2016
Business rule doubt

Hello guys,

I've built a simple rule , as follows:

Thing is, in rule 2, the operation succeeds, the message reachs BO HL7, but in rule 1 it does not go through. In rule 1, I have two different conditions, but they are linked by an OR and one of the conditions is simply IF 1=1.

Do you guys have any clue on why rule 1 does not reach BO HL7?

Thanks

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Hi,

I need to route a message synchronously to multiple targets using a routing rule.

In IRIS I built a general routing rule set, made up of a couple of rules. For one Rule in particular, and based on a common condition, I want to send the incoming message to 2 different targets. (no transformation is used)

I can select, in the single SEND action, multiple target names, or, I can create consecutive SEND actions, one after the other, each sending to their specific target.

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I have a segment within a Group (grp) that needs to be validated that it is populated within the message.

When you use a Foreach within a Business Rule how should you account for the counter in the group?

For example, Epic sends their MFN message in the following format.

MSH~MFI~[~{~MFE~STF~PRA~[~ZPR~]~[~ZLK~]~[~CER~]~[~ZMG~]~[~ZTF~]~[~ZGP~]~[~ZDD~]~}~]

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Ran into an issue this morning, that I am having a hard time trying to track down what might have caused the issue. We have a Business Rule that sends HL7 ADT to a Business Process that inserts the data into a MS SQL Server using a Custom Business Operation (SQL Outbound Adapter).

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I am currently trying to add a condition to a routing rule that uses the %Source property of a routing rule. Unfortunately I am getting compile errors when I use the "%", and if I get PROPERTY DOES NOT EXIST if I try and use any of field. I have tried referencing the messages as "Message." , "Record.", "FullRecordMapClassName." , "Document." . Does anyone know how to reference the properties of a record map in a routing rule, or if it is even possible? Thanks!

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Does anyone have experience in creating a Business Routing Rule using Exists function?

I've used the comma delimited 'In' function, but I would like more manageability. Entering and remove items from a look up table would be much easier to manage then changing the comma delimited string.

Messages go to error state.

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Hey Developers,

Meet the new video on InterSystems Developers YouTube channel:

⏯ Creating Complex Decision Logic with InterSystems IRIS

https://www.youtube.com/embed/SZBRm4rtue8
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