Therefore, how to improve the efficiency and effect of project information exchange by building a project remote collaboration system based on the Internet is a research and application hotspot in the field of project management.
2 Internet-based construction project remote collaboration system (PITS)
2. 1 the concept of construction project remote collaboration system (PITS)
With the rapid development of Internet technology, more and more people begin to use the Internet as a technical platform for information exchange and cooperation among geographically distributed organizations. Compared with traditional media methods, information technologies such as Internet provide unprecedented opportunities for improving project collaboration in traditional engineering construction, which can greatly improve the efficiency, quality and cost of project collaboration.
As a project information exchange solution based on Internet technology, the Building Engineering Remote Collaboration System (PITS) takes the project as the center, effectively organizes and manages the project information, and provides it to all parties involved in the project through personalized user interface. Its essence is a virtual project collaboration environment composed of a series of domain-based collaboration environments. It is not a specific software product or information system, but a general term for a series of project information exchange systems based on Internet technical standards in the field of international engineering construction. On the basis of centralized storage and management of information and knowledge generated by project participants in the whole process of project implementation, it provides an environment for project participants to enjoy, communicate and work together.
2.2 The main functions of the construction project remote collaboration system (PITS)
The remote collaboration system of construction projects mainly provides four basic functions: project information exchange, project document management, project collaborative work and workflow management.
(1) Project information exchange mainly realizes the information exchange and transmission between the project director and the project participants, and between the project participants within the project scope;
(2) Project document management includes document query, document download, document online modification and document version control functions;
(3) The collaborative work function of the project consists of online reminder, network conference, remote video recording and virtual reality.
(4) Workflow management functions are process template, process customization and process control based on workflow theory.
3 Analysis of the technical framework of the construction project remote collaboration system (PITS)
Let's take a remote collaboration system (PITS) as an example to illustrate its architecture. This remote collaboration system (PITS) is a system running in a task environment and must be able to serve multiple concurrent projects in ASP(ApplicationServiceProvider) mode.
PITS adopts the software platform of "distributed high reliability technical architecture"
(1) basic technical architecture
The basic technical framework adopts Microsoft technology platform. The. Net framework on the operating system Windows2000 supports the whole system and can provide IIS, Web, MSMQ, COM+, clustering and other services, as shown in figure 1.
(2) Multi-layer architecture
The platform adopts multi-layer architecture technology, and the system is logically divided into three or more layers, which greatly improves the scalability and performance of the system.
Presentation layer: the presentation layer is mainly man-machine interface. Users can use, control and manage the system here. The commonly used ASP Net technology is adopted here, and IIS6 0 is used as the Web server. Net framework greatly improves the response speed of the system.
Business logic layer: adopting component technology and using component services of Windows. At the same time, the third-party platform support software is used to realize the rapid construction of the system, shorten the system development cycle and improve the development quality.
Data processing layer: mainly used for data exchange with other systems.
Data layer: SQLServer2000 is used to manage all data, and technologies such as data warehouse and data mining are used to support management decisions.
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(3) Distributed high reliability technology architecture
For the above four-layer architecture, each layer can use the load balancing technology (network load balancing and component load balancing technology) and cluster technology provided by Win dows2000, which greatly improves the reliability and response speed of the system.
(4) System data exchange platform
BiztalkServer2000, a powerful third-party product, is adopted. This product fully supports XML technology, and can easily connect this system with other trading systems.
(5) Developing tools
VisualStudio Net, a development tool provided by Microsoft, is adopted. Vi sualStudio NET is a comprehensive tool for quickly creating and integrating XMLWeb services and applications, which can greatly improve the efficiency of developers.
Open architecture enables developers to use any language for Microsoft. NET framework and develop their existing development skills without expensive and extensive retraining. VisualStudio NET is based on the latest MicrosoftWindows(r) server platform, so it has built-in scalability, reliability and security of applications, which simplifies the management and deployment of applications in production environment and reduces the overall cost of application life cycle.
3 conditions and environment for the successful implementation of the construction project remote collaboration system (PITS)
The implementation elements of the project management information platform with the construction project remote collaboration system (PITS) as the core can be divided into the following four parts:
(1) hardware
Hardware includes servers, personal computers and corresponding Internet facilities required for system operation. Different systems and different software have different requirements for hardware, but they all need safe, stable and high-speed hardware.
(2) Software
Software is the core element of the application of remote collaboration system in construction projects. At present, there are three main application modes of pit in specific engineering projects: (1) self-development: the project participants and externally hired software companies are fully responsible for the design, development and maintenance of the system, or the owners directly entrust the software companies to develop. For example, the Beijing Olympic Project Construction Management Information Platform was directly developed by Lenovo Group entrusted by BOCOG. (2) Direct purchase: the main participants of the project, such as the owner or general contractor, invest in purchasing (generally requiring secondary development) commercial software solutions (both ready-made software products and a development platform) for all project participants to use. (3) Lease service: namely the popular e-commerce ASP mode (ApplicationServiceProvider). Buzz saw, a well-known American company, provides ASP mode services.
(3) Educational films
Engineering construction management information platform is a revolutionary change to the traditional engineering construction management mode, which requires relevant engineering managers and engineers to completely update their concepts, act consciously in information processing and master the application of software skillfully. All these require full publicity and systematic training, and form * * * knowledge in leadership, project management and technology and turn it into action.
(4) Organizational part
The organization part refers to the organizational structure setting and project management informatization during the application of engineering construction management information platform, such as the setting of organizational structure and post responsibilities, the task division and authority setting of relevant personnel, the classification and coding of engineering information, and the formulation of information processing system.
4 conclusion
As an important means to realize the informationization of project management, the construction project remote collaboration system (PITS) has been widely used in the construction industry in developed countries such as Europe and America, and its application prospect is very good. However, China's research and application in this field is still in its infancy. In recent years, the Institute of Engineering Management of Tongji University has devoted itself to the research of remote collaboration system for construction projects. The PKM system developed by German Kang Bei Company has been successfully applied in project management practice, which is very beneficial to promote the informationization process of project management in China.
[References]
[1] D. Digitalization and Informatization of Construction Project Management [R]. In 2002, Hong Kong, the second project management seminar.
[2] D. Introduction to construction supervision [M]. Shanghai: Shanghai Kuaibida Software Publishing Company, 1990.
[3] D. Understanding and thinking on digitalization of engineering management [R].2002.
Ye Guo Hui. Research on the application of PIP in engineering construction projects [D]. Master thesis of Tongji University, 2000.
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