Esitusliides

Esitusliides, often translated as presentation layer or view layer, is the topmost layer of the three-tier or n-tier architecture model. Its primary function is to interact with the end-user and display information. This layer is responsible for taking data processed by the business logic layer and presenting it in a human-readable format. It also handles user input, such as button clicks or form submissions, and passes this information back down to the business logic layer for processing.

In software development, the esitusliides typically encompasses the user interface (UI) elements. This could include graphical user interfaces (GUIs) built with frameworks like React, Angular, or Vue.js for web applications, or native UI components for mobile or desktop applications. The goal of the esitusliides is to provide a seamless and intuitive experience for the user, abstracting away the complexities of the underlying data and business logic. It should be designed for ease of use and efficient interaction.

Communication between the esitusliides and the business logic layer is crucial. The esitusliides makes requests to the business logic layer for specific data or actions, and the business logic layer returns the results, which the esitusliides then renders. This separation of concerns allows for independent development and modification of each layer. For example, a change in how data is displayed on the screen (esitusliides) does not require changes to how that data is processed or stored (business logic or data layers).