Flexibility

Degree to which a product can be adapted to changes in its requirements, contexts of use or sys tem environment. This characteristic is composed of the following sub-characteristics:

Adaptability

Degree to which a product or system can effectively and efficiently be adapted for or transferred to different hardware, software or other operational or usage environments.

Scalability

Degree to which a product can handle growing or shrinking workloads or to adapt its capacity to handle variability.

Installability

Degree of effectiveness and efficiency with which a product or system can be successfully installed and/or uninstalled in a specified environment.

Replaceability

Degree to which a product can replace another specified software product for the same purpose in the same environment.