workflow engine and rule engine performance

I think that at the end of the day it doesn't matter what performance degradation (if any) you have - it only matters does the architectural appraoch of workflows and/or rule engine fits your solution. for example, for business rules do you have complex business rules ? does your business rules change frequently, do you have a lot of business rules ? .

Once you decide this is the right direction - you need to evaluate the performance and scalability, price etc. of the different technology mappings (e.g. for Rule engines in .NET I know if ILog Rules, InRule, Biztalk and NxBRE ) - probably the best way to evaluate this would be building a small proof of concepts that looks at key scenarios in your solutions

Arnon

ArnonRotemGalOz at 2007-9-8 >

It is not that rule engines require OR mapping as much as rule engines are part of the business logic and thus don't run on the database itself

As someone told you on another thread - you don't have to use "real" objects for the rule engine (you can try typed-data sets for example)

Arnon

ArnonRotemGalOz at 2007-9-8 >

Hi

Though tools like Biztalk combine both there is a difference between Rule Engines and Workflows BPEL is a specification for Worflow language

There are several specifications for Rule langauges such as RuleML and SWRL but not all rule engines support them.

Arnon

ArnonRotemGalOz at 2007-9-8 >