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IT服务管理（ITSM）是一套帮助企业对IT系统的规划、研发、实施和运营进行有效管理的方法，是一套方法论。ITSM起源于ITIL（IT Infrastructure Library，IT基础架构标准库），ITIL是CCTA（英国国家电脑局）于1980年开发的一套IT服务管理标准库。它把英国在IT管理方面的方法归纳起来，变成规范，为企业的IT部门提供一套从计划、研发、实施到运维的标准方法。

IT运维管理，也就是 ITOM。简单说就是 IT 部门面对不断增长的异构IT 基础设施和应用，需要借助更好的自动化工具、监控工具及日志工具等来提升效率，保障质量。

IT资产管理(ITAM)包括用于监督、管理和优化公司拥有的IT系统、硬件、流程和数据的实践和策略。作为ITAM战略的一部分，IT部门负责实施、跟踪和维护IT资产，并评估这些IT资产是否需要优化，是否可以用更便宜的选项替换，或者升级到更新的技术。

IP Address Management (IPAM)

Managing IPs in the data center is a vitally important component to effectively managing the data center. Device42’s IPAM functionality provides centralized management of your data center’s IP address space.

IT Asset Management (ITAM)

Device42 provides comprehensive IT asset management capabilities to completely document all IT assets across your infrastructure deployment.

软件资产管理(SAM)

Service Management Automation X (SMAX)

ITIL（Information Technology Infrastructure Library）

Enterprise Service Management (ESM) is about processes and people. The best practices are put forward as a framework in ITIL® V3 in five subject areas: Service Strategy Service Design Service Transition Service Operations Continual Service Improvement

As a framework, ITSM is intended to be adopted and adapted. Adoption of the principles of ITIL is not limited to the IT department: ESM is the abbreviation for Enterprise Service Management.