assurance in the timely and reliable access to data services for authorized users. It ensures that information or resources are available when required.
Are communications getting worse? Not by a long shot. We’re surrounded by miraculous machines and services, most of them calibrated to a level software engineers have long called “good enough.” In the right circumstances, good enough is great for the entire economy. A marketplace that’s not hung up on fail-safe standards is open to risk and innovation, and drives down prices. Ever since the dawn of the PC–the archetype for a good-enough machine–inventors have been freer than ever to piece together and launch their visions. Some are brilliant, some are half-baked, many are a blend of the two. A precious few are up and running 99.999% of the time–Bell’s old standard. But they cost far less to build.
So, according to Businessweek, availability is not required — as in, “I need Skype so I may make a phone call now or by tomorrow” — as we assume. The “I can live without it temporarily if it’s inexpensive enough” — assuming I have a backup plan (a.k.a, cell phone - see linked article) — is the name of the game.
Skype’s 2-day outage: Availability, Who Gives a Damn?
The infosec field commonly defines availability as:
It seems that Stephen Baker of Businessweek has a different standard:
So, according to Businessweek, availability is not required — as in, “I need Skype so I may make a phone call now or by tomorrow” — as we assume. The “I can live without it temporarily if it’s inexpensive enough” — assuming I have a backup plan (a.k.a, cell phone - see linked article) — is the name of the game.