对更改或更新的 IT 服务和解决方案执行测试。通过试点解决方案、创建试运行等来测试 IT 服务和解决方案，以验证变更的影响。确保 IT 职能部门能够提供所需数量的支持。 Performing tests on a changed or updated IT services and solutions. Test the IT services and solutions by piloting solutions, creating trial runs, etc. to validate the impact of change. Ensure the IT function facilitates the required amount of support.