Detecting Design Patterns in Object-Oriented Program Source Code by Using Metrics and Machine Learning

Detecting well-known design patterns in object-oriented program source code can help maintainers understand the design of a program. Through the detection, the understandability, maintainability, and reusability of object-oriented programs can be improved. There are automated detection techniques;however, many existing techniques are based on static analysis and use strict conditions composed on class structure data. Hence, it is difficult for them to detect and distinguish design patterns in which the class structures are similar. Moreover, it is difficult for them to deal with diversity in design pattern applications. To solve these problems in existing techniques, we propose a design pattern detection technique using source code metrics and machine learning. Our technique judges candidates for the roles that compose design patterns by using machine learning and measurements of several metrics, and it detects design patterns by analyzing the relations between candidates. It suppresses false negatives and distinguishes patterns in which the class structures are similar. As a result of experimental evaluations with a set of programs, we confirmed that our technique is more accurate than two conventional techniques.

Research on object-oriented SOC design methodology

The growing complexity of System on Chip （SOC） requres a system level specicanon and design approach. High-level languages such as C＋＋/SystemC can play multiple roles in system design as target languages. There are many practical problems in the application of object-oriented methods for this goal. Based on the analysis of traditional and system-level design methodology, a new object-oriented SOC design methodology with object-oriented design patterns is proposed, which emphasizes high-level design and verification. Aiming at the final goal of developing design patterns specific to SOC design, the reuse of design patterns in SOC systems and the capability of new SOC design patterns are discussed. With the illustration of some concrete examples of SOC design patterns, the application of object-oriented design methodology in the SOC design process is presented.

Automatic Generation of UML Class Diagrams for Object-oriented Design and Programing Course

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.

OBJECT-ORIENTED FINITE ELEMENT ANALYSIS AND PROGRAMMING IN VC++

The design of finite element analysis program using object-oriented programming (OOP) techniques is presented. The objects, classes and the subclasses used in the programming are explained. The system of classes library of finite element analysis program and Windows-type Graphical User Interfaces by VC + + and its MFC are developed. The reliability, reusability and extensibility of program are enhanced. It is a reference to develop the large-scale, versatile and powerful systems of object-oriented finite element software.

Exploration on 5E Teaching Principle-based Education for the Object-oriented Software Construction Course

Most current object-oriented programming courses offered by domestic colleges and universities generally focus on the object-oriented programming language itself,i.e.,the programming grammar of the language,but ignore the design pattern.However,design patterns are essential to software engineering because they can solve common problems in software design and improve code reuse,readability,extensibility,and reliability.Our Object-oriented Software Construction Course is creative since it aims at cultivating students’object-oriented thinking as well as basic abilities required to construct high-quality,object-oriented software.Specifically,we exploit the 5E teaching principle during the education of this course,and present the whole pipeline in the paper.We also provide one case of the factory pattern to further demonstrate the implementation of the 5E teaching principle in the course.The effect of the 5E teaching principle has also been demonstrated.

Testability Models for Object-Oriented Frameworks

Frameworks are time-tested highly reusable architectural skeleton structures. They are designed ‘abstract’ and ‘inco- mplete’ and are designed with predefined points of variability, known as hot spots, to be customized later at the time of framework reuse. Frameworks are reusable entities thus demand stricter and rigorous testing in comparison to one- time use application. The overall cost of framework development may be reduced by designing frameworks with high testability. This paper aims at discussing a few metric models for testability analysis of object-oriented frameworks in an attempt to having quantitative data on testability to be used to plan and monitor framework testing activities so that the framework testing effort and hence the overall framework development effort may be brought down.

Object-oriented CAD for Hydraulic Circuits of Pressing Machines

This paper describes the design and implementation of an intelligent computer-aided design (ICAD) system for hydraulic circuits of pressing machines. The CAD system is developed based on the object-oriented approach. The application domain of hydraulic presses has been studied thoroughly. The engineering data and the design knowledge are organized in an object-oriented database. A case study has been selected to illustrate the usefulness of the object-oriented CAD system in real applications.

THE OBJECT-ORIENTED INTELLIGENT PROGRAMMING IN CAD/CAM

Design and manufacture organizations currently suffer from a number of problems that aignificantly affect their productivity.Despite their fragmented efforts to automate portioas of operations,they still suffer from 'islands' of designing and manufacturing automation,long lead time for semi-custom proposals and engineering work, lengthy cycles of product development and introduction into the market,and low morale due to boring,repetitive engineering and industrial design activities.Thereby,the integration of design and manufacturing poses to the CAD/CAM researchere a series of challenges.The paper introduces a methodology that allows for the integration of product design with manufacturing process planning and the application of a new software technology known as 'Object-Oriented Intelligent Programming' .The task is achieved through an object-oriented intelligent CAD/CAM environment where a design model from the CAD system can be analysed, and manufacturing process plans with specifications of machining can be automatically determined.The manufacturing information of a part is extracted from the 3D geometric model and the 2D engineering drawing,thus,both geometric and non-geometric attributes of a part can be obtained.

O-O Analysis of Vehicle Body Design and Establishment of Engineering Database

To establish the object-oriented (O-O) engineering for vehicle body design Methods characteristics of vehicle body design data were analyzed by means of theO-Omethod The analytical results were transformed intothe engineering databasethat canbeusedsufficiently to describe the relative information of vehicle body design data.Results TheO-Oengineeringdatabaseforvehiclebodydesignis realized and practiced in the process ofbody design for a QCJ7082 economical car. Conclusion The method is successful in trans- forming vehicle body design object into engineering database.The database supports each procedure of vehicle body design perfectly

Design and Implementation of Lightning Analysis Software Based on Lightning Location System Data

This paper discusses the steps about how to design and implement software based on lightning location system data and its localization map.The system contains four major modules such as real-time lightning monitoring,historical query,lightning intensity zoning,lightning disaster statistics,etc.The system is able to automatically generate real-time lightning monitoring image,lightning animation,and lightning intensity zoning image,which contributes to the high accuracy of the calculation results and the efficiency of data analysis.The paper also points out the deficiencies of software life cycle management and proposes actionable solutions.

Application of Classical Garden Design in Landscaping of West Sichuan Plain

Taking"Lotus Garden Residential Area"in Dayi County,Chengdu City,on the west Sichuan Plain for example,the signifi cance of combining ecological technologies and landscape design was elaborated,and the means of controlling urban fl ood and waterlogging were explored from the perspective of the basic unit of urban construction,the residential area,so as to offer a new sustainable thought for the environment design of future residential areas.

Automated Design and Visualization System of a House Foundation from Blocks

This article analyzes creation methods of automated design system, presents design system of a house foundation from blocks. The creation methods of automated design system of a house foundation from blocks are discovered with Unified Modeling Language. Analyzed objects-classes： block, specification, model. Graphical system can design foundation, form specification of objects and create 3D model of house foundation. There are several types and different dimensions of concrete blocks. The program optimally arranges selected blocks so that monolithic parts will be minimal volume. Program selects a house foundation blocks from database by using ActiveX Data Objects technology, which by programming method connects drawing and database. Drawing＇s graphical objects have additional data from which exchange of data between graphical system and database is executed. Visualization system and example of house foundation from blocks project with specifications is presented. Creation problems of automated design system are discussed and conclusions are made.

Research and Development of the Object-oriented Design Method: IDEF4

Object-oriented technology has been widely accepted over recent years and proper use of this technology helps facilitate large system development. Concurrent engineering is one of the large, complex programs thatbenefits from using the objectuoriented method. This paper first introduces some popular object-oriented designmethods and then focuses on the IDEF4 method. The IDEF4 method is one member of IDEF, which is an integratedfamily of integration definition methods. The IDEF4 method was applied to the development of a specific system. Application of the method exposes the advantages and disadvantages of IDEF4. An enhancement method, IDEF4X, isproposed to provide a more powerful object-oriented method.

Notes on the Design of an Integrated Object-Oriented DBMS Family

This paper summarizes the design and implementation notes of the CodDdBase system,which is a corn binative distributed database management system family based on an integrated object model.CoDdBase is implemented in CLUSTER 86,a general purposed object-oriented programming language designed by the authors.The CoDdBase environment is actually a part of the CLUSTER 86 programming environment,which offers various object-based models,supplies miscellaneous building blocks for constructing different distributed DBMS's,and provides integrated programming tools to develop new ways and new models in response to changing application needs.

Development of a distributed and integratable manufacturing execution system framework

Using remote method invocation (RMI) and a distributed object-oriented technique, this paper presents a systematic approach to developing a manufacturing execution system (MES) framework, which is open, modularized, distributed, configurable, interoperable and maintainable. Moreover, the design patterns for the framework .are developed and a variety of functional components are designed by inheriting appropriate patterns. And then an application is constructed by invoking corresponding methods of related components. An MES system implementing the framework and design patterns can be facilely integrated with other manufacturing applications, such as enterprise resource planning (ERP) and floor control system (FCS) .

面向对象方法在管理信息系统开发中的应用

面向对象的方法是一种先进的技术．它强调从客观世界中固有的事物出发来分析构造系统；用人类在现实生活中常用的思维方式来认识、理解和描述客观事物．面向对象的分析和设计方法对于开发大型管理信息系统有着重要而实用的意义．本文先简单地介绍面向对象的方法，然后结合邮政业务管理系统来说明怎样利用面向对象的方法来分析和设计一个具体的管理信息系统．

基于CORBA的制造执行系统的实现

提出了一种适合我国离散制造业的制造执行系统的功能模型 ,针对传统的制造执行系统缺少柔性、不易重构、难以维护的缺点 ,系统地论述了基于 CORBA ( Common object request broker architectore)的制造执行系统的实现方法 ,包括领域分析、面向对象分析、面向对象设计和应用 CORBA技术实现制造执行系统等主要内容。实例证明该系统具有良好的扩展性。

生成式路径下数据驱动的视觉传达设计

目标通过分析达成2个目标:首先,探索生成设计方法在视觉传达设计学科中对于引入,驾驭数据信息进行视觉再现的知识意义;其次,探索生成式设计处理创意设计中数据驱动信息的合理路径和方法。方法由于视觉传达设计领域中生成式设计思维的应用尚无清晰的定义,所以在研究中采用综述法与比较分析法,从3个层面以数据引入视觉创意设计为中心论题进行讨论。文章共分为3个主要部分:第1部分,研究问题的提出,从视觉传达设计研究范式对动态数据处理的局限性进行分析,讨论当前设计研究范式与数据特性在应用层面结合的矛盾症结;第2部分,就存在的问题提出可行性方案,讨论生成式设计思维在视觉传达领域的应用,以及生成式设计框架在视觉设计中数据应用的可能性;第3部分,结合案例说明生成式设计思维如何构建视觉设计框架以及数据导入具体路径。结论生成式设计思路从逻辑构建角度为数据介入视觉系统设计提供思路,成为一种从视觉表意出发的动态应用数据可能性的路径,将数据纳入设计环节中作为新的变量进行复杂意义的表达。

面向对象方法在企业评价诊断系统开发中的应用

面向对象的分析和设计方法是一种先进的技术，它对于开发大型系统有着重要而实用的意义。讨论了怎样利用面向对象的方法来分析和设计企业评价诊断系统。探讨了企业评价诊断系统的结构、组成、功能以及和其他企业管理系统的关系，给出了用面向对象技术分析和设计企业评价诊断系统的具体方法。

用面向对象方法构造用电管理信息系统

以Ｃｏａｄ－Ｙｏｕｒｄｏｎ ５层次方法为基础，吸取Ｒｕｍｂａｕｇｈ动态建模的思路来认识、理解和描述用电管理过程并构造模型。采用向向对象分析和设计的方法，利用现有大型网络关系型数据库管理系统（ＲＤＢＭＳ）和前端开发工具Ｐｏｗｅｒ－Ｂｕｉｌｄｅｒ ６．５，开发了供电企业用电管理信息系统。在基类的基础上，作者自定义了一些类，使类具有继承性的特点，并使用电管理信息系统具有可重用性，易修改和扩充，具有广阔的应用前景。