Definition - What does Scalability mean?
Scalability is an attribute that describes the ability of a process, network, software or organization to grow and manage increased demand. A system, business or software that is described as scalable has an advantage because it is more adaptable to the changing needs or demands of its users or clients.
Scalability is often a sign of stability and competitiveness, as it means the network, system, software or organization is ready to handle the influx of demand, increased productivity, trends, changing needs and even presence or introduction of new competitors.
Techopedia explains Scalability
To further understand scalability, here are two examples. First, a basic anti-virus program can become premium and be used by enterprises through downloading certain add-ons or paying for subscription. Because more resources may be added to it, it is considered scalable. On the other hand, more computers and servers can be added to a network in order to increase throughput or intensify security. This makes the network scalable.