In addition, object-oriented DBMS technology is being used to deliver graph databases, which are key to managing social networks and addressing other relationship-oriented Big data problems.

此外，面向对象的DBMS技术正用于提供图形数据库，它是管理社交网络和解决其他面向关系的大数据问题的关键。

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ISDG, an improved system dependence graph, is proposed in order to better describe relationships in object-oriented programs. ISDG solves the description problem of parameterized objects.

针对面向对象语言程序，提出了一种改进后的系统依赖图：ISDG，用来更好地表示面向对象程序中的依赖关系，从而解决了对象类型参数和属性的表示问题。

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Based on a graph-model-database integration maintenance mode, with object-oriented technology, a maintenance system applied in the AC and DC system is developed in this thesis.

本文基于一种图形数据一体化的维护方式，采用面向对象技术，实现了一个适用于交直流系统的维护系统。

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