【摘要】 地理信息系统是一个涉及多学科领域的、复杂而且投资昂贵的信息系统,构建一个性能良好、结构健壮、扩展容易而且维护容易的应用GIS,需要应用软件工程的方法,对应用系统构建过程进行组织和控制。作为结构化软件过程之后具有划时代意义的软件工程方法——来源于面向对象方法的统一软件过程,吸收和发展了面向对象方法中的精华,在现代软件工程实践中得到了日益普及的应用,因而也必然地对GIS系统应用的构建方法产生巨大的影响。就目前实际软件应用过程中影响最大的一种软件方法——统一软件过程,作初步的论述和探讨,并结合一个开发实例,说明其对地理信息系统的开发实践的实用价值。更多还原

【Abstract】 GIS is a very complicated and costly information system which involves multi specialty subjects. To construct a well-performed, robust, scalable and easily-maintained GIS application, it’s necessary to use methodologies of the Software Engineering to organize and manage the constructing process. There are two main software engineering methodologies, the structured methodology and the Object-oriented methodology, in the development of the GIS applications. They differed from each other very much on the basic concept. As a significant methodology of the Software Engineering after the presence of the structured software process, the Unified Software Process, which is derived from the Object Oriented Software Methodology, has been used widely and increasingly in the modern software engineering practices, including the GIS development, by means of absorbing and developing the distilments of the OO methodology. Meanwhile, the UML-Unified Modeling Language, as a successful standard system modeling language, has also been used in all phases of the whole developing process of software. As a result, it will cause huge impacts on the developing methodologies of GIS application. Tries to expound and approach a most important and current software methodology, namely the Unified Software Process, by one real developing instance. It will be somewhat valuable for the practical developing of GIS.更多还原