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1answer
106 views

File validation rules

I have an application that can accept CSV files to run some operations. The files look like: CREATE USER:username,last_name,first_name,age user1,Smith,John,23 user2,Poppins,Mary,257 There are a ...
3
votes
2answers
267 views

Using Prolog to implement authorization rules

I'm working on a user management "pseudoframework" in PHP, and I'm trying to implement fine-grained rule-based authorization. I'm using a combination of SQL and condition-checking functions written ...
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0answers
103 views

Appropriate design / technologies to handle dynamic string formatting?

recently I was tasked with implementing a way of adding support for versioning of hardware packet specifications to one of our libraries. First a bit of information about the project. We have a ...
1
vote
1answer
340 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"> ...
0
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0answers
218 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 ...
12
votes
3answers
2k 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
vote
1answer
306 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 ...
4
votes
3answers
266 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
88 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
843 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. ...
18
votes
4answers
1k views

Generic rule parser for RPG board game rules - how to do it?

I want to build a generic rule parser for pen and paper style RPG systems. A rule can involve usually 1 to N entities 1 to N roles of a dice and calculating values based on multiple attributes of an ...
5
votes
1answer
10k views

Rule engine in .NET [closed]

I have to import data from Excel to an SQL database. The Excel data contains various parameters and their values, like P1, P1, P4, P5, etc. I have to apply business rules. Like if (P1 > 100 and P1 ...
4
votes
2answers
916 views

Web services and business rules engines

We have a web service that takes in input different types of messages. The function of the webservice is to merely write in a database the content of the messages. There is about one table (with ...
1
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2answers
253 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 ...
11
votes
4answers
2k 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 ...