The ITIL guide breaks down the key principles of the IT service management discipline into the following sub-categories, which are collectively known as the ITIL framework (see Figure 1).

ITIL指南将IT服务管理规程的主要原则分为以下几个子类别，这几个子类别统称为itil框架(请参见图1)。

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Data is organized in a number of categories - Sales, Security, Computer, Internet, Communication, Financial Management, Training, etc. -, each category being further organized in sub-categories.

同时还数据对进行了分门别类的管理，类别有销售、安全、计算机、因特网、通信、金融管理和培训等，每个分类又有进一步的子分类。

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Main Categories menu, each classification of the main menu can have numerous sub-menu, more convenient management software.

有4个主分类菜单，每个主分类菜单中可以有无数子菜单，更方便管理软件。

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