If a software application is “scalable,” it means that it can efficiently handle increased demands without a decline in performance. Scalability allows an application to grow with an organization, accommodating more users, transactions, or data as needed. This can be achieved through vertical scaling (adding resources to a single server) or horizontal scaling (adding more servers to distribute the load). A scalable application ensures that businesses can adapt to changing circumstances, maintain optimal performance during growth periods, and meet user expectations without requiring a complete re-architecture.