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1answer
82 views

Implementing Rules-type logic without a rules engine (like Drools)?

I have a system that must output decisions and alerts based on input read from a messaging queue. This system will hold state about all objects in memory and update this state based on input from the ...
1
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1answer
136 views

Chained ruleset parsing and evaluation code: recommendations?

So I have to write a filtering system, which may apply preprocessed ruleset to data - and trigger some actions defined in the ruleset while continuing its evaluation. <ruleset name="1"> ...
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0answers
120 views

Algorithms or patterns for a linked question and answer cost calculator

I've been asked to build an online calculator in PHP (and the Laravel framework). It will take the answers to a series of questions to estimate the cost of a home extension. For example, a couple of ...
1
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2answers
359 views

Representing and executing simple rules - framework or custom? [closed]

I am creating a system where users will be able to subscribe to events, and get notified when the event has occured. Example of events can be phone call durations and costs, phone data traffic ...
10
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3answers
743 views

Why Aren't Rule Engines Written In Prolog? [closed]

From what I've seen of Prolog, it seems as if it would be ideal for crafting a rule engine for an app. Yet, I don't believe I've ever seen a rule engine written in Prolog. Is there some inherent ...
1
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1answer
134 views

Suggestions on how can I implement a generic matching system for users?

I need help with coding something. I'm trying to design a system that will allow users to setup rules for the system to process (similar to email processing rules, in a way). When I receive a chunk of ...
3
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3answers
169 views

Complex Mutual Exclusion Validation Logic

I need to validate some form inputs in complex way. E.g. <select id="options" multiple="multiple"> <option>A</option> <option>B</option> ...
1
vote
1answer
73 views

handling rules applied to a set of checkboxes, radio buttons or form fields

I've been wondering about applications that have a set of checkboxes or radio buttons, even collections of form fields in their UI. At this moment I'm handling all the choices separately but of ...
6
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4answers
273 views

Representing a rule in a ruleset

How to represent rules for a rule engine as objects? A rule would be if (booleanExpression(input)) then a chain of generic actions" else next rule ...where the generic actions might be e.g. ...
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2answers
214 views

Is Tax Localization a good use for Workflow Foundation?

Scenario: We have both Winforms and MVC code that is being used to work on a nation wide multi-user platform that does lots of logistics for lots of users. Tax rules change per state and even per city ...
10
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3answers
1k views

How does the use of a rules engine impact the design, implementation, and performance of an application?

I'm interested in the ability of rules engines to: launch and iterate over business driven logic have "business users" perform the actual modification of those rules rather than developers ...