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Vector Illustration of SOA with different layer components like Presentation, business process, Service component, message and legacy, enterprise application layer?? All plans come as a Standard license, and can be upgraded to an Enhanced license at any time.
Programmers Stack Exchange is a question and answer site for professional programmers interested in conceptual questions about software development. I have trouble drawing a clear line between Presentation and Application layer in Domain Driven Design. Just because someone created and named "Application Layer" and "Presentation Layer" doesn't mean your application should have them. You should create layers AFTER you created substantial amount of code which you grouped together and want to name this group for sake of communication between developers and clarity of code.
Thank you, indeed you made me realize that for my case separating Application and Presentation is useless. If DDD has REST API instead of UI in presentation layer, would REST API be an application or presentation layer. Domain Driven Design has nothing to do with either Presentation layer or Application layer.
You might as well choose any other kind of architecture, as I've said DDD does not impose constraints. There is a big difference between the application layer and the presentation layer from a DDD view point. Although DDD centers around how to model the domain using the DDD building blocks and concepts such as bounded contexts, Ubiquitous language and so, it is still vital to clearly identify and separate the various layers in your app.
The actions issued through presentation are delegated to the application layer through commands.


Not the answer you're looking for?Browse other questions tagged architecture domain-driven-design layers or ask your own question. How to respond to journal suggestion we get a native-speaker editor when writing seems reasonable and one author is a native English speaker? Is there any idiom or expression that would imply " It is hard to argue against such rationale"?
The presentation layer of the CRM WebClient UI is based on the CRM User Interface Framework (CRM UIF), which is the basis for the HTML pages running in the Web browser. The business object layer saves the business object data, for example of sales orders, at runtime of the SAP CRM session. The generic interaction layer handles the data transfer from the business object layer to the application programming interfaces (APIs) of the underlying business engine. Use the SAP Community Network (SCN) to find additional help content, such as discussions and blogs. Everyone who signs up gets full access to our entire library, including our curated collections. Our Standard license allows you to use images for anything, except large print runs over 500,000+ or for merchandising. Once you have downloaded your image, you have life-long rights to use it under the terms of the license purchased. Here's an example of one such application showing the layers and their intended use: DDDSample Architecture.
There are many MVC frameworks out there that have different structures and yet could also be used for DDD applications.
Merging the 2 together introduces tight coupling between 2 layers that have clear separate concerns and responsibilities.


This separation allows the connection of any business application, via business object layer (BOL) and generic interaction layer (genIL) to the presentation layer. This layer guarantees the separation of the CRM WebClient UI and the underlying business logic. If at any time you're unsatisfied with your experience with us, you can cancel your subscription. That is, DDD does not impose any constraints regarding any other layer except for the Domain layer and Your question as well could be asked in the context of any other methodology. So, if you choose to use this architecture your views and layouts would go to the Interfaces layer and the controllers, if interface-independent, would go to the Application layer.
This mainly houses the MVC's Controllers and views in addition to CSS, JS, templates, forms and everything that relates to response and request objects.
Since I abstracted to an application layer, I was able to have multiple presentation layers. A typical application service will ask a repository to return an aggregate then invoke an action on that aggregate. For example, our web api and our web site both consume the application layer which saved a lot of time and duplicated code since my web app doesn't have to frame messaging to and from the web api and it keeps all of the logic in sync between the two.




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