Software Quality Assurance Practice Exam

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What is the primary focus of tier 2 in e-commerce architecture?

Provides the visual content to the end user
Runs the software to model user business processes
Focuses on storing and retrieving data from the data source
Coordinates communication between tier 1 and tier 3

The correct answer is: Runs the software to model user business processes

In e-commerce architecture, tier 2, often referred to as the application layer, primarily handles the business logic and operations needed to process user requests and manage business processes. This tier runs the software that models how users interact with the system, allowing for the execution of complex transactions, decision-making, and workflows. By focusing on user business processes, this layer effectively bridges the user interface (presented in the first tier) and the data management functions of the third tier. It enables the translation of user actions into actionable tasks that the data layer can manage, which is crucial for seamless operation in an e-commerce environment. This functionality ensures that the system responds appropriately to user inputs, handles order processing, manages customer interactions, and integrates business rules, making it an essential component of a robust e-commerce platform.