What is Database Application?

Definition

A database application is any software system that stores, retrieves, and manipulates data in a structured way, usually backed by a Database Management System (DBMS) such as Oracle, MySQL, or SQL Server.

Typical Architecture

• Front-end: the user interface where people enter and view data.
• Back-end (database): where the data is actually stored, organized into tables.
• Middle tier (business logic): code that processes requests and enforces business rules between the front-end and the database.

Why Testers Need to Understand This

Because data flows between the UI and the database, testers must verify not just what the screen shows, but that the correct data was actually saved, updated, or deleted in the underlying tables.