In IT, what does the term "scalability" refer to?

Scalability in the context of information technology refers to the capability of a system to handle a growing amount of work or its potential to accommodate growth. This can be achieved by adding resources such as more servers, storage, or bandwidth as demand increases.

When a system is scalable, it can manage increased workloads effectively without suffering performance degradation. This characteristic is vital for businesses that anticipate growth or fluctuating workloads, as it allows them to adapt to changes in demand flexibly and economically.

The other options highlight important aspects of IT solutions but do not capture the essence of scalability. Maintaining data integrity is crucial for data accuracy and security but does not relate to the concept of scalability. Supporting multiple users efficiently deals more with system performance and management rather than scalability itself. Finally, integrating with existing systems is about interoperability and compatibility rather than the ability to grow in capacity or resources with increasing demands.