| ECDIS-Based Tactical Plotting System is an application system of Electronic Chart application systems. With the increasingly extending application are of Electronic Chart Display and Information Systems, many problems are appearing. In order to meet the demands of the developing market, reach the modularization, extensibility and maintainability, the application system must be upgraded.Firstly, the paper first presents an in-depth discussion about the technique and the idea of the component technology for software. Secondly, the paper expatiates upon the generation, current development and tendency of component technique, and discusses some techniques correlative with COM (Component Object Model) and the applications of component technique in many fields. Subsequently, on the basis of studying the basic theory and method about CBD, the process of software development about CBD is analyzed in order to provide the idea for the design of the application system. In addition, Component technology is a powerful and hot scheme to actualize software reuse, shorten programming time, decrease maintenance costs and realize dynamic program upgrade. Then the paper using many charts researches and analyzes the theory of software reusing about containing and aggregation. Based on these, every component of the application system is analysised and designed.UML are applied in system analysis and design of each component of the application system. The standardization and industrialization of software development and management will be realized if the UML are applied in the development of the software. It will make for the modularization of production and gives convenience for its upgrade, extension and maintenance. In the course of developing Components, in order to make the component of smaller volume and higher efficiency, it brings forward using ATL technique regarding as a component development tool. |
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