Since web applications are mostly stateless, and linear (request comes in, response goes out), is change-tracking really necessary? E.g. if I have an action that updates a Product instance I know at ...

Ok, the context is some serialization / deserialization code that will parse a byte stream into an object representation that s easier to work with (and vice-versa). Here s a simplified example ...

While designing ORM, what is the best approach to represent the relationship, performance-wise? I mean, out of the following two, which approach is best considering performance? class Employee { ...

I am in the middle of solving a problem where I think it s best suited for a decorator and a state pattern. The high level setting is something like a sandwich maker and dispenser, where I have a set ...

Is there a design pattern for managing a queue or a stack? For example, we are looking to manage a list of tasks. These tasks will be added to a group queue, users will then be able to pull off the ...

I have started upgrading one of our internal software applications, written in ASP.NET Web Forms, and moving to ASP.NET MVC. I am trying to leverage the Repository design pattern for my classes, ...

I have a Car object which contains a latitude field and a longitude field. I use the observer pattern so that any time either of these fields change in my application, my car object is notified. I ...

How are models and DAOs supposed to interact? I m in the process of putting together a simple login module and I m unsure where to put the "business logic." If I put the logic with the data in the ...