The new ISO 9001:2008 standard requires the adoption of a process approach when developing, implementing and improving a quality management system (QMS).
ISO 9000 Clause 2.4, The Process Approach states:
"Any activity or set of activities that uses resources to transform inputs to outputs can be considered as a process."
For organizations to function effectively, they have to identify and manage numerous interrelated and interacting processes. Often, the output from one process will directly form the input into the next process.