Which of the following is a requirement for ITSM tools?

Self-help functionality is an essential requirement for IT Service Management (ITSM) tools because it empowers users to resolve their own issues without needing to directly contact support staff. This capability enhances user experience by providing access to knowledge bases, FAQs, and troubleshooting guides, allowing users to find solutions efficiently and independently. By reducing the volume of incoming requests to the help desk, self-help functionalities help organizations improve service delivery and optimize resource allocation.

In the context of the other options, while mobile application support, third-party integration capability, and cloud storage options can enhance the effectiveness of ITSM tools, they are not fundamental requirements. Self-help functionality directly contributes to a core aspect of ITSM: providing users with the means to address their own problems, which aligns with the overall goal of improving service efficiency and user satisfaction.