How does the Business Process layer interact with the UI layer?
You combine the UI from multiple systems such as displaying Salesforce UI in a third-party application. The UI layer interacts with the business process layer. The business process layer interacts with the data and builds on the UI layer.
What do you call a service result pattern?
This is often just called the Result Pattern but I think it goes beyond this concept when wrapping it up into something like CLEAN or Onion. So, I often refer to it as the Service Result Pattern.
How to handle business logic errors and validation?
Handle your business logic errors / validation and expose the result of that logic, whether successful or with errors, to the controller that then determines the proper HTTP Response Code and message to return based on the type of result.
How can I separate the user interface from the logic?
To put it in more practical terms, nowhere within the source code files of the logic should you find any include/import/using statements that refer to UI files, while the source code files of the UI will be full of include/import/using statements that refer to Logic files.
What does common coupling mean in software engineering?
Ex- protocol, external file, device format, etc. Common Coupling: The modules have shared data such as global data structures. The changes in global data mean tracing back to all modules which access that data to evaluate the effect of the change.
How does the UI layer work in Salesforce?
The UI layer focuses on user interactions with the system. In this layer, you identify the components to integrate third-party web applications into Salesforce. You combine the UI from multiple systems such as displaying Salesforce UI in a third-party application. The UI layer interacts with the business process layer.
How is communication between layers based on IDL?
All communication between the Layers is based upon Interface Objects using IDL (Interface Definition Language). Each application has its own User Interface, i.e. the choice of GUI is specific for every company (business case) depending on computer environment and tools that is normally used for GUI-development.