Table of Nines for Application Uptime and Availibility

End-users of applications are increasingly reliant on the uptime or availability of mission-critical applications to successfully, quickly and easily perform their jobs of service delivery objectives. It is critical that the end-users, all well and the provider of these applications, have a common agreement and definition of availability as well as downtime. Users and Employees from a wide variety of industry verticals such as hospitals, data centers and financial institutions depend daily on these applications to smoothly run their operations. Availability depicts the ability of the user community to obtain a service or access an application. Downtime is generally used to describe the periods of time when a system or application is unavailable, or that they cannot access a system from an end-users point of view. Source: http://www.statuscast.com