UML Class diagram generation from textual requirements is an important task in object-oriented design and programing course.This study proposes a method for automatically generating class diagrams from Chinese textual...UML Class diagram generation from textual requirements is an important task in object-oriented design and programing course.This study proposes a method for automatically generating class diagrams from Chinese textual requirements on the basis of Natural Language Processing(NLP)and mapping rules for sentence pattern matching.First,classes are identified through entity recognition rules and candidate class pruning rules using NLP from requirements.Second,class attributes and relationships between classes are extracted using mapping rules for sentence pattern matching on the basis of NLP.Third,we developed an assistant tool integrated into a precision micro classroom system for automatic generation of class diagram,to effectively assist the teaching of object-oriented design and programing course.Results are evaluated with precision,accuracy and recall from eight requirements of object-oriented design and programing course using truth values created by teachers.Our research should benefit beginners of object-oriented design and programing course,who may be students or software developers.It helps them to create correct domain models represented in the UML class diagram.展开更多
以树型图为基础,吸收了N-S图和PAD图等图形工具的优点,创建了程序设计的一种新的辅助工具——PAT图(program m ing aiding tree).其基本图符由顺序结构、选择结构、循环结构、开始和结束、sw itch 结构、块结构、图形续接和模块8 种组成...以树型图为基础,吸收了N-S图和PAD图等图形工具的优点,创建了程序设计的一种新的辅助工具——PAT图(program m ing aiding tree).其基本图符由顺序结构、选择结构、循环结构、开始和结束、sw itch 结构、块结构、图形续接和模块8 种组成,符合程序设计的结构化和模块化的要求.与ISO流程图、N-S图和PAD图相比。展开更多
基金This work is supported by the Collaborative education project of QST Innovation Technology Group Co.,Ltd and the Ministry of Education of PRC(NO.201801243022).
文摘UML Class diagram generation from textual requirements is an important task in object-oriented design and programing course.This study proposes a method for automatically generating class diagrams from Chinese textual requirements on the basis of Natural Language Processing(NLP)and mapping rules for sentence pattern matching.First,classes are identified through entity recognition rules and candidate class pruning rules using NLP from requirements.Second,class attributes and relationships between classes are extracted using mapping rules for sentence pattern matching on the basis of NLP.Third,we developed an assistant tool integrated into a precision micro classroom system for automatic generation of class diagram,to effectively assist the teaching of object-oriented design and programing course.Results are evaluated with precision,accuracy and recall from eight requirements of object-oriented design and programing course using truth values created by teachers.Our research should benefit beginners of object-oriented design and programing course,who may be students or software developers.It helps them to create correct domain models represented in the UML class diagram.
文摘以树型图为基础,吸收了N-S图和PAD图等图形工具的优点,创建了程序设计的一种新的辅助工具——PAT图(program m ing aiding tree).其基本图符由顺序结构、选择结构、循环结构、开始和结束、sw itch 结构、块结构、图形续接和模块8 种组成,符合程序设计的结构化和模块化的要求.与ISO流程图、N-S图和PAD图相比。
