Cloud computing offers significant benefits, but will account for only a fifth of overall enterprise IT by 2012 and will leave many businesses disappointed, a Gartner analyst has claimed.
Speaking at Gartner Symposium ITxpo in Cannes, Gartner vice president
David Cearley said that by 2012, 20% of businesses would be using cloud
computing for part of their IT infrastructure -- a figure which
contrasts sharply with the build-up surrounding the concept of
on-demand, elastic computing services.
"Cloud computing is one of the most hyped terms in the industry right
now," Cearley said. "In many ways it's overhyped. In the next 12-18
months, it's going to crash into the trough of disillusionment. But we
do think cloud computing is going to be a very important long-term
phenomena."
"You hear a lot about cloud computing today, and we do think we're
going to see rapid growth over the next few years. By 2012, about 20%
of user organisations will rely on the cloud model for significant
parts of their IT environment. Even a few years from now, it's not
necessarily going to be the dominant form of comp in your environment.
It's going to be a broad, long-term phenomenon. "
Cloud computing delivers more benefits when applications are designed
to take advantage of it from the outset, rather than simply used as an
alternative delivery model. "We have seen a number of failures where
people have taken a standard existing enterprise application which
doesn't require any significant change and moved onto the cloud,"
Cearley said. "Not surprisingly, companies that just try and do that
oftentimes find that it may be less secure and it didn't save them any
money."
"It's applications that have variable resource requirements or where
there's a need to extend the existing capabilities, those are the kinds
of applications that benefit the most from moving to a cloud computing
model. A hybrid model that will look at combining external and internal
resources is going to be the best practice approach for most
organisations for quite some time."
Cearley also warned against the notion that using the cloud
automatically provided greater flexibility. "You are buying into
particular vendor approaches, particularly when you get to the cloud
computing infrastructure layer. You have a certain degree of lock-in
when you're talking about these providers. If you've built on a
Force.com platform, you're not going to port that. That's an important
trade-off that you need to start looking at."
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