| Quality management, schedule management and investment management are the main tasks of project management, their goals are the unity of opposites. In the progress of the schedule management, people need to use the "Gantt chart", "network map", "column graph", "line graph" and other progress graphics to visually express the progress information. Many project management software support the function of drawing "Gantt Chart", "network map" and other progress graphics. Projects are generally located in different regions, to facilitate project information exchanging between project participants, transmiting information via Internet is the best choice. In this paper, background and status of project management is studied, the necessity of research on the web-oriented schedule management software is proposed. To improve reusability of software in different forms during the software developing progress, component technology and object-oriented technology is used in the software design and implementation process. To increase code reusability, portability and maintainability of schedule management components and reduce coupling between the view and logic of the components, the MVC design pattern is used to divide the components into three parts: model, view and control. Based on requirements analysis, the UML modeling technique is used to model the components, the dynamic server page technology ASP.NET is used to develop the schedule management components. To overcome the deficiencies of progress graphics under the B/S structure in transmission speed and interactivity, a in-depth study of the scalable vector graphics SVG is made,and the SVG representation of progress graphics is designed. On these basis, the generation algorithms of progress graphics is studied, and the generation algorithm of Gantt chart in SVG format is designed and implemented with JavaScript language on the client side to make full use of the processing power of the browser of the client-side. |
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