Whenever we build an awesome product we first build it standalone but sooner or later it attracts more users and then our minds start thinking about how to accommodate more users and there comes the need of scaling the application. Generally scaling means providing more elasticity to the application so that it can sustain the high influx of users and run smoothly without any glitches.
Software scalability is an attribute of a tool or a system to increase its capacity and functionalities based on its users’ demands. Scalable software can remain stable while adapting to changes, upgrades, overhauls, and resource reduction
