Research on the J2EE-based product database management system

The basic frame and the design idea of J2EE-based Product Data Management (PDM) system are presented. This paper adopts the technology of Object-Oriented to realize the database design and builds the information model of this PDM system. The integration key technology of PDM and CAD systems are discussed, the isomerous interface characteristics between CAD and PDM systems are analyzed, and finally, the integration mode of the PDM and CAD systems is given. Using these technologies, the integration of PDM and CAD systems is realized and the consistence of data in PDM and CAD systems is kept. Finally, the Product Data Management system is developed, which has been tested on development process of the hydraulic generator. The running process is stable and safety.

A Domain Engineering Approach to Increase Productivity in the Development of a Service for Changes Notification of the Configuration Management Database

This paper presents a domain engineering approach to build a software product line that supports the change notification service in a Configuration Management Database (CMDB) according to the Information Technology Infrastructure Library (ITIL) best practices. For the development of this product line, the proposed approach makes use of a construction of products methodology by analogy: this is a new notation which reports the variability of the products, obtaining metrics as important as the number of products and uses a language that enables, by means of the flexibilization of a product and the development of some generators, to build the rest of the product line. In addition the paper offers a standard for the analysis and design of the CMDB as well. Finally, the paper presents an economic model for the product line, where the profitability and productivity of the proposed solution are analyzed.

Fortifying the Digital Bastion: Pioneering Cybersecurity with Dynamic Secrets Management and CMDB Fusion in the Enterprise

In the relentless quest for digital sovereignty, organizations face an unprecedented challenge in safeguarding sensitive information, protecting against cyber threats, and maintaining regulatory compliance. This manuscript unveils a revolutionary blueprint for cyber resilience, empowering organizations to transcend the limitations of traditional cybersecurity paradigms and forge ahead into uncharted territories of data security excellence and frictionless secrets management experience. Enter a new era of cybersecurity innovation and continued excellence. By seamlessly integrating secrets based on logical environments and applications (assets), dynamic secrets management orchestrates and automates the secrets lifecycle management with other platform cohesive integrations. Enterprises can enhance security, streamline operations, fasten development practices, avoid secrets sprawl, and improve overall compliance and DevSecOps practice. This enables the enterprises to enhance security, streamline operations, fasten development & deployment practices, avoid secrets spawls, and improve overall volume in shipping software with paved-road DevSecOps Practices, and improve developers’ productivity. By seamlessly integrating secrets based on logical environments and applications (assets), dynamic secrets management orchestrates and automates the application secrets lifecycle with other platform cohesive integrations. Organizations can enhance security, streamline operations, fasten development & deployment practices, avoid secrets sprawl, and improve overall volume in shipping software with paved-road DevSecOps practices. Most importantly, increases developer productivity.

A new product family mining method based on PLM database

Product family(PF) is the most important part of product platform. A new method is proposed to mine PF based on multi-space product data in PLM database. Product structure tree(PST) and bill of material(BOM) are used as the data source. A PF can be obtained by mining physics space, logic space and attribute space of product data. In this work, firstly, a PLM database is described, consisting of data organization form, data structure, and data characteristics. Then the PF mining method introduces the sequence alignment techniques used in bio-informatics, which mainly includes data pre-processing, regularization, mining algorithm and cluster analysis. Finally, the feasibility and effectiveness of the proposed method are verified by a case study of high and middle pressure valve, demonstrating a feasible method to obtain PF from PLM database.

A product module mining method for PLM database

Modular technology can effectively support the rapid design of products, and it is one of the key technologies to realize mass customization design. With the application of product lifecycle management(PLM) system in enterprises, the product lifecycle data have been effectively managed. However, these data have not been fully utilized in module division, especially for complex machinery products. To solve this problem, a product module mining method for the PLM database is proposed to improve the effect of module division. Firstly, product data are extracted from the PLM database by data extraction algorithm. Then, data normalization and structure logical inspection are used to preprocess the extracted defective data. The preprocessed product data are analyzed and expressed in a matrix for module mining. Finally, the fuzzy c-means clustering(FCM) algorithm is used to generate product modules, which are stored in product module library after module marking and post-processing. The feasibility and effectiveness of the proposed method are verified by a case study of high pressure valve.

A version management model of PDM system and its realization

Based on the key function of version management in PDM system, this paper discusses the function and the realization of version management and the transitions of version states with a workflow. A directed aeyclic graph is used to describe a version model. Three storage modes of the directed acyelic graph version model in the database, the bumping block and the PDM working memory are presented and the conversion principle of these three modes is given. The study indicates that building a dynamic product structure configuration model based on versions is the key to resolve the problem. Thus a version model of single product object is built. Then the version management model in product structure configuration is built and the application of version management of PDM syster is presented as a case.

PDM管理系统在服装制造业管理中的应用设计

为设计一种能够适用于服装制造业等劳动密集型企业的PDM管理系统,全面提高服装制造企业的综合管理水平,使企业各方面资源得到充分平衡调配和优化,达到全面提高企业市场竞争力的目的。设计了用于服装制造业的PDM管理系统的整体结构,即系统层面、数据交换处理层面和用户操作层界面。为保证系统安全性,设计了用户界面的结构和功能,详细介绍用户管理模块、技术图档管理模块、项目管理、流程管理模块、数据管理模块的功能和设计要点。对提高服装制造业整体管理水平和资源共享具有重要借鉴意义。

System View of Product Data Management and Its Application

A product data management system for a manufacturing enterprise is to make sure that the proper product data can be communicated to the right people at the right time.This paper describes a system analysis paradigm for data analysis in a product data management(PDM)development.Three aspects of the paradigm,i.e.,function,structure and behavior are rep- resented.The use of the paradigm explains why so many kinds of objects are necessary in a commercial database matrix and what models are available for developing a PDM application.As another result,a lot of models are derived from the analysis of product data system paradigm to model product data and PDM database definitions.

An Open Architecture and Implementation for Product Data Management

In this paper, an open architecture and its implementation for product data management are presented. The system architecture, product data definition model, and a set of components of the architecture are discussed in detail. Especially, the principle and some mechanism of one of the components, an object oriented database management system GH-EODB, are discussed in more detail. The architecture is extensible and adaptable.

Research on Product Data Management Based on Multi-agent System

PDM (product data management) is one kind of techniques based on software and database, which integrates information and process related to products. But it is not enough to perform the complication of PDM in enterprises. Then the mechanism to harmonize all kinds of information and process is needed. The paper introduces a novel approach to implement the intelligent monitor of PDM based on MAS (multi agent system). It carries out the management of information and process by MC (monitor center). The paper first puts forward the architecture of the whole system, then defines the structure of MC and its interoperation mode.

Establishment of Person and Enterprise Process Model in Product Data Management System

Before the implementation of product data management (PDM) system, person model and enterprise process model (EPM) must be firstly established. For the convenience of project management, all the related users must be allocated to the “Person User Role Group” net. Based on the person model and the direction of information flow, the EPM is established subsequently. The EPM consists of several release levels, in which the access controls are defined. The EPM procedure shows the blueprint of the workflow process structure. The establishment of person model and EPM in an enterprise has been instanced at the end of this paper.

Analyses on web-based product data management

This paper is concerned with the development of product data management （PDM） systems--WPDM systems based on web technologies. As a tool to integrate information, traditional PDM system has many benefits for the companies in such aspects as improving design productivity, better control over projects and so on. With the maturing of web technologies, the advantages of WPDM system are obvious. We will show these advantages in detail in Part 3. WPDM system is built on three-tier application model to provide security and flexibility, they are back-end, middle layer and front-end. The basic designs in each layer will be briefly introduced in Part 4. In the future, WPDM will be extended to integrate with other applications to provide a complete web-based engineering environment.

浅谈桂林中昊的PDM规划与实施

近几年来,国内橡机行业在自动化升级中上取得了显著成绩,但该行业具有多元化和个性化的特点,设计过程会产生众多繁杂的设计数据,这一特性迫使橡机设备制造厂家寻求可适用行业特点数据管理方法,通过采用信息化数据管理手段,快速地利用现有设计数据资源匹配客户需求,提升产品设计响应速度,以提升企业在市场中的竞争力。本文从系统规划及实施的角度对桂林中昊的PDM项目过程做了简要介绍,分享了实施的过程中获得的经验和教训。

How to Implement Product Data Management

introduced are the main implementation contents and brought out is a cycle optimal PDMimplementation methodology by phases through studying requirements of enterprises' datamanagement and summarizing the existing method. The implementation contents include documentsmanagement product structure and configuration management, product classification and codingmanagement, workflow management and software encapsulation. It divides the PDM implementationinto preparing, software selechon and training, implementation plan making, concrete implementingand evaluating. By the cycle of the last two pheses, the successful implementation of PDM can beobtained. This methodology has been used in the CIMS project of two companies and proved to bepractical.

基于PDM框架的应用集成研究与实践

以863/CIMS重大攻关项目“制造业CIMS应用集成平台”为应用背景,以企业内部的应用集成需求为目标,研究了采用产品数据管理系统作为应用集成框架的特点,讨论了PDM系统和典型应用系统集成的有关问题。在此基础上,本文建立了一个基于商用PDM系统针对计算机辅助应用系统的应用集成模式。

PDM系统中电子图纸自动入库技术研究

在开发工程图管理系统及实施 PDM过程中 ,高效、准确地自动提取图纸标题栏信息 ,实现大量现存电子工程图档的自动入库是一个关键技术。本文利用 Active XAutomation技术实现了对 DWG、DXF格式电子图档的标题栏、明细表等信息的无损失提取和自动入库 ,并对于提取过程中的标题栏模板定义和提取算法进行了分析说明。

基于CAD的PDM技术的研究与应用

PDM作为CAD/CAM技术的进一步发展,不仅将改善原有的企业管理体系,也将做到CAD,CAM以及CAE,CAPP的真正集成化管理,发挥并行设计模式的优点。利用产品数据管理(PDM)系统实现对工程数据的管理和操作,形成基于CAD而独立于CAD的信息数据库/知识库,从而为后续基于特征建模的CAPP,CAM等系统提供完整可靠的设计和制造信息。实施PDM技术的关键是实现产品的结构与配置管理。通过它创建产品零件结构树,实现对产品零部件的管理和操作。

PDM技术在并行工程中的应用与实施

研究了在 PDM系统支持下如何实现对并行工程中的 CAx/ DFx工具的封装与集成、集成产品开发团队的组织与管理、产品信息与资源信息的管理、过程信息的管理等实施技术 ,最终提供并行化产品设计所必需的运作环境 。

基于快速重组制造的PDM平台研究

阐明了在经济全球化和网络制造环境下 ,企业资源重组的必然性和重要性。提出了支持快速重组制造系统的产品数据集成管理平台—— QR- PDM平台的体系结构 ,讨论了资源重组的原理及重组原则。

产品数据管理（PDM）与并行设计的支撑环境

本文首先对并行工程中自动化ＣＥ环境的要求及ＰＤＭ技术作了简要介绍，并针对８６３／ＣＩＭＳ关键技术攻关项目“并行工程”的实施情况，研究了如何用商用ＰＤＭ软件实现对并行设计中的人员、工具、设备资源、产品数据以及数据生成过程的全面管理，最终提供并行设计所必需的运作环境。同时阐述了基于ＰＤＭ集成的几个典型问题。