SOFTWARE ENGINEERING

Detailed explanation-1: -It often refers to increasing or decreasing resources as needed to meet the higher or lower demands of a business. Vertical (scale-up) scalability increases the capacity of hardware or software by adding resources to a physical system, such as adding processing power to a server to make it faster.

Detailed explanation-2: -Scalability refers to the ability of an organization (or a system, such as a computer network) to perform well under an increased or expanding workload.

Detailed explanation-3: -“Performance is an indication of the responsiveness of a system to execute any action within a given time interval, while scalability is the ability of a system either to handle increases in load without impact on performance or for the available resources to be readily increased.