A quick update to my article list for silicon.com – an article explaining why the shift to cloud computing may take longer than CIOs think. Along with the familiar barriers to cloud adoption, such as security and vendor lock-in, there are a number of less obvious challenges giving some CIOs pause for thought:

Listen to the vendors and on-demand computing is presented as an unstoppable force that is set to change technology provision quickly and irrevocably.

Check the research and that representation certainly appears credible, with analyst house IDC estimating that companies spend £10.7bn a year on cloud IT services worldwide and that the market will be worth £27bn by 2013. But while the numbers might sound impressive, IT leaders wishing to transfer services to the cloud face significant challenges.

Executives rapidly discover a dark side to the cloud, where concepts of on-demand technology are confused, trust is constrained and understanding is limited. “I find the whole debate about cloud as interesting as the debate about service-oriented architecture,” says Stuart Curley, chief technology architect at the Royal Mail. “It doesn’t keep me awake at night but it does send me to sleep.”

For the rest of the feature, click here.