ITIL offers a service management framework that is gaining momentum in data centers, but a data center's management is only as good as its configuration information (documentation). Configuration management in the data center and of the physical infrastructure is sorely lacking in many data centers, and is overly dependent on personal productivity tools and spreadsheets. Change management processes are more mature, but many are using inappropriate tools (e.g. email) to manage it, which lack workflow management and controls to ensure changes are carried out accurately and configuration information is updated.