T-Archive:基于分级存储的信息生命周期管理系统

基于策略的信息生命周期管理对于存储和数据的高效使用至关重要,数据分类和策略管理的方便性以及策略执行的高性能成为该领域的突出问题.T-Archive是一个基于分级存储系统架构的策略控制的生命周期管理系统.该系统提供数据分类、策略定制管理、数据自动迁移以及客户端和应用对数据的完全透明访问.实验结果表明,迁移文件的透明访问机制对系统性能影响很小,极大地减少了客户端的管理开销,增强了系统的可扩展性.研究了策略管理在策略缓存方面的性能,使其能够很好地适应大规模的文件系统.     

Role-based access to facilities lifecycle information on RFID tags

Radio Frequency Identification (RFID) based systems have been used in different applications in the Architecture, Engineering, Construction, Owner and Operator (AECOO) industry. Applications are mainly designed for specific lifecycle stage of the facility and serve the needs of only one of the stakeholders. This would increase the cost and the labor for adding and removing tags and eliminate the chance of using shared resources. In this paper, the usage of tags permanently attached to components is proposed where the memory of the tags is used during the lifecycle by different stakeholders for data storage and handover. A Building Information Model (BIM) database is used for tackling the interoperability issues allowing different users to access and share the data. To securely and efficiently store data on RFID tags in ifcXML format, multi-level encryption together with role-based access control is applied on the data stored on RFID tags. Each user is assigned a certain role and can only access the part of data for which he has authorization according to a predefined role and the Access Control Policy. To explore the technical feasibility of the proposed approach, a case study considering both facilities management and emergency management has been implemented and tested at Concordia University.     

Policy lifecycle model for systems management

In an enterprise, policies are the glue that hold network and systems management activities, tools, managed resources, and process participants together. Nevertheless, gaps between management objectives, policy definitions, and policy enforcement are inevitable during policy deployment. Policy definitions will rarely satisfy all management requirements and can be difficult to understand and enforce. Moreover, system administrators often ignore or circumvent policies intentionally or unintentionally in daily management activities. Policy-based management offers a promising solution to the problem of managing complex systems. It provides a means by which to simplify and largely automate the management procedure. These authors propose a policy lifecycle model, based on proven software development procedures; it can guide the deployment of a policy-based information management system in an enterprise.     

射频识别技术在物流管理领域中的应用

文章介绍了RFID技术在物流管理领域中的优势，然后从危险品跟踪、集装箱跟踪、食品跟踪和仓库管理等方面列举了RFID在物流管理领域的典型应用，最后分析了RHD在物流管理领域的应用环节。     

An integration framework for product lifecycle management

The need for integrating business and technical information systems, allowing partners to collaborate effectively in creating innovative products, has motivated the design and deployment of a novel integration framework for product lifecycle management. The time is ripe for such an integration framework because of the convergence of three important developments, almost in a perfect storm: (1) maturity of standardized product data and meta-data models, and standardized engineering and business processes; (2) emergence of service-oriented architecture for information sharing; and (3) availability of robust middleware to implement them. These developments allow engineering and business objects and processes to be built or composed as modular pieces of software in the form of services that can communicate with each other and be used across different parts of a business. These modular software pieces can be reused and reconfigured in new ways as business conditions change, thereby saving time and money for companies. This paper describes the business and technical aspects of an integration framework for product lifecycle management using open standards and service-oriented architecture.     

基于租用的移动Agent生命周期管理策略

将实际生活中的租用机制引入到移动Agent生命周期管理之中,使得移动Agent和其运行环境之间形成一种租用关系,从而在不改变移动Agent自身行为特性的情况下,使得移动Agent系统可以通过有限的租用期限柔性地管理移动Agent生命周期。这种机制使得运行在开放环境下的移动Agent系统具有自愈合、自管理的特点,并在一定程度上增强了移动Agent系统的容错性和安全性。文中利用UML描述了租用模型与相关实现技术,并给出了基于租用的移动Agent生命周期管理的算法。最后通过应用实例证明了此方法是通用的与可行的。     

云存储环境下生命周期可控的数据销毁模型

用户数据在云存储环境下缺乏有效的数据销毁机制,其数据安全性在生命周期内面临威胁,销毁时间受控,大大限制了云存储服务的发展。为此,提出一种云存储环境下生命周期可控的数据销毁模型。首先,通过函数变换处理明文生成密文和元数据,避免复杂的密钥管理;其次,为提高数据销毁的可控性,设计一种基于时间可控的自销毁数据对象,使得过期数据的任何非法访问都会触发数据重写程序对自销毁数据对象进行确定性删除,从而实现生命周期可控的数据销毁功能。分析及实验结果表明,该方案在保护数据安全的同时,能够有效地销毁数据,增强数据销毁的灵活性、可控性,且具有较低的性能开销。     

Product relationships management enabler for concurrent engineering and product lifecycle management

The current competitive industrial context requires more flexible, intelligent and compact product lifecycles, especially in the product development process where several lifecycle issues have to be considered, so as to deliver lifecycle oriented products. This paper describes the application of a novel product relationships management approach, in the context of product lifecycle management (PLM), enabling concurrent product design and assembly sequence planning. Previous work has provided a foundation through a theoretical framework, enhanced by the paradigm of product relational design and management. This statement therefore highlights the concurrent and proactive aspect of assembly oriented design vision. Central to this approach is the establishment and implementation of a complex and multiple viewpoints of product development addressing various stakeholders design and assembly planning points of view. By establishing such comprehensive relationships and identifying related relationships among several lifecycle phases, it is then possible to undertake the product design and assembly phases concurrently. Specifically, the proposed work and its application enable the management of product relationship information at the interface of product-process data management techniques. Based on the theory, models and techniques such as described in previous work, the implementation of a new hub application called PEGASUS is then described. Also based on web service technology, PEGASUS can be considered as a mediator application and/or an enabler for PLM that externalises product relationships and enables the control of information flow with internal regulation procedures. The feasibility of the approach is justified and the associated benefits are reported with a mechanical assembly as a case study.     

基于Web的全生命周期设备管理系统*

基于全生命周期的思想,从设备的企业计划、采购、使用到最终的报废四个方面构建了基于Web的全生命周期设备管理系统;在该系统中通过严格规范的编码方法对设备做到惟一的追踪,实现设备全生命周期中信息的一致性、全面性和可追溯性;介绍了供应商的选择以及通过各类统计报表,追踪并及时反馈企业资金的流向以及利用程度.     

Modeling workflow activities for collaborative process planning with product lifecycle management tools

Process planning activities are critical in manu- facturing distributed environments where different companies need to collaborate in product development. In this work, we propose a workflow model for a collaborative process planning environment in which original equipment manufacturer and suppliers companies interact with the help of Product Lifecycle Management and CAD/CAM tools. The proposed workflow model establishes the different activities, the information flows and the different stages that must be followed by all the participants. A pilot implementation has been made in order to validate the model in a realistic industrial scenario.     

P2P Data synchronization for product lifecycle management

Intelligent products are an undeniable asset for efficient product lifecycle management (PLM), providing ways to capture events related to physical objects at various locations and times. Today and more than ever before, PLM tools and systems must be built upon standards for enhancing interoperability among all product stakeholders and developing tools independent of specific vendors, applications, and operating systems. Based on this observation, this paper develops strategies to improve “information sustainability” in PLM environments using standardized communication interfaces defined by a recent standard proposal named quantum lifecycle management (QLM) messaging standards. More concretely, data synchronization models based upon QLM standards are developed to enable the synchronization of product-related information among various systems, networks, and organizations involved throughout the product lifecycle. Our proposals are implemented and assessed based on two distinct platforms defined in the healthcare and home automation sectors.     

A logistic regression framework for information technology outsourcing lifecycle management

We present a methodology for managing outsourcing projects from the vendor's perspective, designed to maximize the value to both the vendor and its clients. The methodology is applicable across the outsourcing lifecycle, providing the capability to select and target new clients, manage the existing client portfolio and quantify the realized benefits to the client resulting from the outsourcing agreement. Specifically, we develop a statistical analysis framework to model client behavior at each stage of the outsourcing lifecycle, including: (1) a predictive model and tool for white space client targeting and selection—opportunity identification (2) a model and tool for client risk assessment and project portfolio management—client tracking, and (3) a systematic analysis of outsourcing results, impact analysis, to gain insights into potential benefits of IT outsourcing as a part of a successful management strategy. Our analysis is formulated in a logistic regression framework, modified to allow for non-linear input–output relationships, auxiliary variables, and small sample sizes. We provide examples to illustrate how the methodology has been successfully implemented for targeting, tracking, and assessing outsourcing clients within IBM global services division.Scope and purposeThe predominant literature on IT outsourcing often examines various aspects of vendor–client relationship, strategies for successful outsourcing from the client perspective, and key sources of risk to the client, generally ignoring the risk to the vendor. However, in the rapidly changing market, a significant share of risks and responsibilities falls on vendor, as outsourcing contracts are often renegotiated, providers replaced, or services brought back in house. With the transformation of outsourcing engagements, the risk on the vendor's side has increased substantially, driving the vendor's financial and business performance and eventually impacting the value delivery to the client. As a result, only well-ran vendor firms with robust processes and tools that allow identification and active management of risk at all stages of the outsourcing lifecycle are able to deliver value to the client. This paper presents a framework and methodology for managing a portfolio of outsourcing projects from the vendor's perspective, throughout the entire outsourcing lifecycle. We address three key stages of the outsourcing process: (1) opportunity identification and qualification (i.e. selection of the most likely new clients), (2) client portfolio risk management during engagement and delivery, and (3) quantification of benefits to the client throughout the life of the deal.     

Information sharing and exchange in the context of product lifecycle management: Role of standards

This paper introduces a model of the information flows in Product Life cycle Management (PLM), serving as the basis for understanding the role of standards in PLM support systems. Support of PLM requires a set of complementary and interoperable standards that cover the full range of aspects of the products’ life cycle. The paper identifies a typology of standards relevant to PLM support that addresses the hierarchy of existing and evolving standards and their usage and identifies a suite of standards supporting the exchange of product, process, operations and supply chain information. A case study illustrating the use of PLM standards in a large organization is presented. The potential role of harmonization among PLM support standards is described and a proposal is made for using open standards and open source models for this important activity.     

基于Teamcenter的机车车辆PLM系统的应用

产品全生命周期管理（PLM）作为一种综合技术,是企业信息化的重要组成部分,Teamcen-ter是架构成熟、功能全面的一体化PLM解决方案。Teamcenter是基于一个单一的、开放的、SOA体系构架,易于扩展,Teamcenter支持并行设计。基于Teamcenter的全生命周期管理软件应用到机车车辆企业,有效缩短了研发周期,提高了产品质量。     

Telerobot-enabled HUB-CI model for collaborative lifecycle management of design and prototyping

The HUB-CI model is investigated in a telerobotic system in a client/server network to manage the lifecycle of engineering design and prototyping. The purpose of this platform is to support collaborative engineering design and proof of concept to enhance distributed team collaboration and resource utilization. The suggested platform is exemplified in two collaboration support tools and a physical prototyping platform. Structured Co-Insight Management is developed to support innovative idea exchanges and the consensus decision-making during the design process. Conflict/error detection management helps preventing conflicts and errors during the lifecycle of design and development. Physical collaboration over the network occurs when a team controls the telerobot operation during prototyping and testing in design cycles. A pilot system is implemented with a group project for the design of an electronic circuit (including both hardware and software designs). The functional assessment method is used to compare this platform to other collaborative design tools. The system presented offers unique qualitative advantages as an integrated collaboration support system.     

Industrial blockchain based framework for product lifecycle management in industry 4.0

Product lifecycle management (PLM) aims to seamlessly manage all products and information and knowledge generated throughout the product lifecycle for achieving business competitiveness. Conventionally, PLM is implemented based on standalone and centralized systems provided by software vendors. The information of PLM is hardly to be integrated and shared among the cooperating parties. It is difficult to meet the requirements of the openness, interoperability and decentralization of the Industry 4.0 era. To address these challenges, this paper proposed an industrial blockchain-based PLM framework to facilitate the data exchange and service sharing in the product lifecycle. Firstly, we proposed the concept of industrial blockchain as the use of blockchain technology in the industry with the integration of IoT, M2M, and efficient consensus algorithms. It provided an open but secured information storage and exchange platform for the multiple stakeholders to achieve the openness, interoperability and decentralization in era of industry 4.0. Secondly, we proposed and developed customized blockchain information service to fulfill the connection between a single node with the blockchain network. As a middleware, it can not only process the multi-source and heterogeneous data from varied stages in the product lifecycle, but also broadcast the processed data to the blockchain network. Moreover, smart contract is used to automate the alert services in the product lifecycles. Finally, we illustrated the blockchain-based application between the cooperating partners in four emerging product lifecycle stages, including co-design and co-creation, quick and accurate tracking and tracing, proactive maintenance, and regulated recycling. A simulation experiment demonstrated the effectiveness and efficiency of the proposed framework. The results showed that the proposed framework is scalable and efficient, and hence it is feasible to be adopted in industry. With the successful development of the proposed platform, it is promising to provide an effective PLM for improving interoperability and cooperation between stakeholders in the entire product lifecycle.     

The value of RFID for RTI management

Returnable transport items (RTIs) are key elements for enabling a smooth flow of goods throughout supply chains. Despite their importance, RTIs can be prone to high loss and breakage rates. Today’s RTI management processes are rather inefficient and are based on estimates about when, where and how RTIs are utilised. This limited visibility inevitably causes the involved parties to feel less responsible for the proper management of RTIs. As a consequence, inefficiencies created by a single party can result in a significant cost burden for the whole supply chain. The goal of this paper is therefore to explore the impact of increased asset visibility on the RTI management process. We describe a solution based on Radio Frequency Identification (RFID) technology and quantify its financial impact from each individual stakeholder’s perspective. Our findings suggest that RFID can provide a powerful means to counter inefficiencies in the RTI management process and improve the overall effectiveness of the RTI supply chain network.     

Using RFID for the management of pharmaceutical inventory — system optimization and shrinkage control

Motivated by a case study at a radiology practice, we analyze the incremental benefits of RFID technology over barcodes for managing pharmaceutical inventories. Unlike barcode technology, RFID enables accurate real-time visibility, which in turn enables several process improvements. We analyze the impact of automatic counting and discuss the system redesign critical to optimizing the inventory policy and eliminating shrinkage. We show that continuous review is superior to periodic review whenever accurate real-time information is available at no additional cost. We explain how RFID-enabled strategies vary with inventory parameters and provide a cost-benefit analysis for the implementation of RFID for the radiology practice.     

基于RFID的学童辅助管理系统设计

为了提高现有学童安全管理系统的安全性和自动化程度,提出了基于RFID的学童辅助管理系统的设计方案。该系统通过在校园大门以及走廊、教室布设RFID阅读器,给学童/访客配备便携式RFID卡的方式建立在校人员监测网络,以实时获取学童/访客在校位置信息;从而实现自动点名、出入考勤、访客管理、统计分析等功能。系统具有自主性、实时性、全天候的特点,是"智慧校园"的一次有益实践。