| Accessibility |
The ability of the system to be used by people with disabilities. |
| Availability and Resiliency |
The ability of the system to be fully or partly operational as and when required and to effectively handle failures that could affect system availability. |
| Development Resource |
The ability of the system to be designed, built, deployed, and operated within known constraints around people, budget, time, and materials. |
| Evolution |
The ability of the system to be flexible in the face of the inevitable change that all systems experience after deployment, balanced against the costs of providing such flexibility. |
| Internationalization |
The ability of the system to be independent from any particular language, country, or cultural group. |
| Location |
The ability of the system to overcome problems brought about by the absolute location of its elements and the distances between them. |
| Performance and Scalability |
The ability of the system to predictably execute within its mandated performance profile and to handle increased processing volume. |
| Security |
The ability of the system to reliably control, monitor, and audit who can perform what actions on what resources and to detect and recover from failures in security mechanism. |
| Usability |
The ease with which people who interact with the system can work effectively. |