Ruby is an object-oriented scripting language well suited for purposes as diverse as system-management scripts, rich Internet applications, or desktop applications.
Ruby 是一种面向对象的脚本语言，适用于各种系统管理脚本、富 Internet 应用程序或者桌面应用程序。
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JetBrains released Meta Programming System for a LanguageOriented Programming (PDF) style.
JetBrains发布了针对面向语言编程(PDF)风格的元编程系统。
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UML is the most popular object-oriented modeling language, the blue-print of information technology and the method to describe system architecture.