1. AXELOS. (2019). ITIL® Foundation, ITIL 4 Edition. TSO (The Stationery Office).
Section 5.2.5, "Incident management": Defines the purpose as "to minimize the negative impact of incidents by restoring normal service operation as quickly as possible." This highlights its reactive nature focused on restoration, not prevention.
Section 5.2.8, "Problem management": States the purpose is "to reduce the likelihood and impact of incidents by identifying actual and potential causes of incidents." This explicitly assigns incident reduction to the Problem Management practice.
2. University of Washington. (n.d.). ITIL V3 Foundation Courseware. IT Service Management Office.
"Incident Management" Module: Describes the goal as restoring normal service operation swiftly. It emphasizes the process is reactive to events that have already occurred.
"Problem Management" Module: Defines the goal as preventing problems and resulting incidents from happening and eliminating recurring incidents. This clearly separates the function of incident reduction from Incident Management.
3. Iden, J., & Langeland, A. (2010). Setting the Stage for a Successful ITIL Adoption. Information Systems Management, 27(2), 103-112.
DOI: https://doi.org/10.1080/10580531003708378
Page 105: The article distinguishes between the processes, noting that Incident Management focuses on immediate fixes ("firefighting"), while Problem Management focuses on root cause analysis to prevent recurrence, which directly leads to incident volume reduction.