Layer (or abstraction level, or a layer of abstraction) is a way of hiding the implementation details of a particular set of functionality.

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N-Layer architecture

I am attempting to structure my solution projects in such a manner as to improve testing, reuseability, separation of concerns and all that good stuff. Whilst I understand these concepts in theory, I ...
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Application access layer vs data access layer: taking a choice between distinct 'fast' and 'big' stores served by Redis protocol

background story: So, we want to have a distributed cache available to all applications. (Non-concurrent writes, concurrent reads). In ideal case, the cache must be persistent and kept in RAM ...
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modelling data / UI models in relation with the Data Layer

I have a user interface in Asp.Net MVC, which would for example need to load a list of products to show. Let us assume this calls ProductRepository.GetProducts() . In the data layer, I have a class ...
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Layer Encapsulation without Model Overload?

I'm starting a new project, so it's time to re-evaluate how I do things. In the recent past I have created a 3 layer/tier project (UI, Domain, Data) with each tier with it's own separate model. The ...