
“The key value is in elasticity to supply peak demand without long-term commitment,” said Staten.
“Hour per hour, cloud costs more than traditional hosting but offers flexibility for peak loads,” he said.
Forrester’s short-term recommendations for IT decision-makers who are considering exploiting the cloud are to put together a convincing business case including experimenting with a public cloud service, and to look at the technology with an open mind and craft a “work in progress” policy for cloud use.
But outages of cloud services such as Gmail – used by corporate users including Guardian News & Media and UK manufacturing group Valeo - were not mentioned in the session as examples of incidents that may have dented corporate confidence in the technology.
Some firms, such as chemicals group Rhodia, see cloud computing as a major challenge due to cultural issues and management of legacy systems.