Scalability
Definition
Scalability refers to a system's capacity to handle an increasing amount of work or its potential to be enlarged to accommodate that growth.
Scalability is the ability of a system, network, or process to remain effective and efficient as it grows or its demands increase. This growth can manifest as an increase in users, transactions, data volume, or computational load. A scalable system is designed to adapt to these rising demands without a significant degradation in performance or availability.
For instance, a web application that can serve thousands of simultaneous users without slowing down exhibits good scalability.
This term is frequently encountered in computing, software development, business operations, and infrastructure planning.