business-logic

I'm going through all sorts of WPF documentation, and I'm feeling unnecessarily confused. The term 'business logic' is scattered throughout it, as if everyone should know what it is. I can see what business logic is, according to this question here: What exactly consists of 'Business Logic' in an application? But where did the term come from? Why is it called 'business logic' and not, say, 'core logic' or 'main algorithms' or any other more generic terms? Very few of the programs I write have anything to do with 'business logic', and when I think of 'business logic' I think of things handling

What are the good ways to handle complicated business logic that from the first glance requires many nested if statements? Example: Discount Coupon. could be: 1a) Value discount 1b) Percentage discount 2a) Normal discount 2b) Progressive discount 3a) Requires access coupon 3b) Do not require access coupon 4a) Applied only to the customer who already bought before 4b) Applied to any customer 5a) Applied to customer only from countries (X,Y,…) That requires code even more complicated then this: if (discount.isPercentage) { if (discount.isNormal) { if (discount.requiresAccessCoupon) { } else { }

What is domain logic? The Wikipedia page for domain logic redirects to business logic. Are they the same thing, and, if not, how do they differ? The domain is what you are modelling. If you are modelling a business problem, they are the same thing. If you are modelling something else, physics for instance, there is probably no business logic in your system, but the physics parts are still domain logic. Agile Noob Domain is the world your application lives in. So if you are working on say a flight reservation system, the application domain would be flight reservations. Business Logic on the

I need some advice on the best approach to solving this problem. I've researched DROOLS, Java Rule Engine and a few others. All of these are powerful, and have good things about them. I don't know which (if any) will be the best choice for me. I have one business object. (simplified for demo) Person firstName:String lastName:String departMent:String hireDate:Date I need to write an editor in a web application that will allow for complex rules to be built around these fields. I need to support complex nested AND/OR logic. I just need basic operators, and the rule should simply evaluate to true

We want to write some business logic rules that work on top of certain data to build reports. Not sure which is the best to store them in the database MySQL. It can have a chain of the rules and then a statement for the result as shown above. Somnath Muluk For building reports you can convert business logic in any programming language. And use database data for generating reports. Against of business logic stored in database I place a high value on the power of expression, and I don't find the SQL space to be all that expressive. Use the best tools you have on hand for the most appropriate

We're trying to figure out validation in the mvvm doing validation in the business logic or model. I've implemented the validate by exception type in our business logic - a simplified diagram can be found here: If we've got lot's of inputs that are independent of each other, there is no problem, the exception is thrown, the textbox catches it an marks it's borders red for each wrong input. However, when we've got dependent values we're in trouble. e.g. Value1 and Value2 in the model must not be the same, so we've got a validate function in each of those looking for the equals value and throw