In "Last Call To Design Patterns" we described design patterns as "reusable solutions for frequent problems". It's all about thoughtful approaches to avoid common pitfalls And, actually, Patterns are just one of a set of disciplines which help us to...

While we were commenting some high-level strategies for data-access in a previous article , we mentioned a popular pattern used to interchange information between layers or tiers . We are talking about the Data Transfer Object (DTO) pattern . As the MS...

We have seen in the post about 3-Layer architectures , that the Data Access Layer isn't the persistence repository, but a set of strategies for accessing it The challenge you as an architect have to face when designing this layer is multiple: How...

Contemporary applications are being based on three popular architectural approaches. They are 3-layered architecture 3-tier architecture Model-View-Controller architecture There exists certain degree of confusion between all the three approaches...

I remember a time when applications were just end to end programs, collections of lines of code with no distinction between presentation, domain logic and data access. Such kind of applications is remembered as spaghetti code Fortunately nowadays enterprise...