Lean IT Service Management ◾ 157
is made for information, this might similarly trigger a process for generating
content that can be managed through a value chain. Finally, we may have
requests that require the Service Desk to request supporting services from
other service providers, such as when the Service Desk is a broker for access
to diagnostic support services from third-party vendors. From a Lean per-
spective, all of these requests are a “pull” signal for initiating a service fulfill-
ment process.
By thinking of this as a supply chain, we encourage analysis of the asso-
ciated workflows from a Lean perspective, looking at sources of waste as a
precondition for eliminating them, in exactly the same manner we described
earlier using too