- Cloud computing is a computing paradigm in which tasks are assigned to a combination of connections, software and services accessed over a network. This network of servers and connections is collectively known as "the cloud." Computing at the scale of the cloud allows users to access supercomputer-level power. Using a thin client or other access point, like an iPhone, BlackBerry or laptop, users can reach into the cloud for resources as they need them.

Monitoring the level of performance is a worry for companies using cloud servers, it has been claimed.

According to IT service provider Compuware, organisations should be concerned about the service level because they are essentially outsourcing part of their business.

Compuware technology manager Hadrian James said: "You're basically saying, 'I'm going to take this business area and I'm going to put it outside of my control.'"

He added that strong cloud server performance can be guaranteed with a service level agreement that ensures the business receives the required level of connectivity as well as a monitoring solution outlining performance results and transactions.

Although monitoring the cloud server itself may seem like extra work for a company that outsources to cloud to reduce its workload in the first place, Mr James said this is not the case.

"It would be less work because all you are really doing is listening to the traffic going past so you have a monitor.

"It's almost like a meter no more complicated than your gas meter or electricity meter."

According to Compuware, companies that do not monitor cloud server performance with some sort of measuring tool will have difficulty getting any visibility of result, which could cause problems for users without knowing why.