Requirement Model Based on UML 2.0 for Equipment MIS

This paper introduces the modeling of Unified Modeling Language with use case diagram and active diagram based on Rational Unified Process for Equipment Managemet Information System. It discusses the modeling mechanism and character of UML and develops the Computer Equipment management Information System Based Web using Rational Rose of UML CASE Tool. First, it is describe the authors how to analyze the structure of organize and build the model of structure organize. Second, they abstract the workflow of main operation in organize and build workflow model by active diagram. Finally, they abstract actor, use case with case diagram and finish the requirement model.     

基于Geodatabase与CASE工具的林地保护利用规划数据库设计

林地保护利用规划数据具有多源、海量的特点。针对Geodatabase手动建模费时的特点,利用Geodatabase与CASE工具（Visio）进行UML建型,建立林地保护利用规划数据库模型。该模型实现了林地保护利用规划空间与属性数据的一体化存储,缩短了开发周期。     

林分数据库再设计研究——以大兴安岭毕拉河林业局为例(英文)

本文以大兴安岭比拉河林业局的林分数据库为例,介绍了再设计动态地理数据库(Geodatabase)的全过程。它包括基于原数据的数据库概念设计,数据库逻辑设计和基于UML语言和CASE工具的动态地理数据库设计等三个步骤。结果表明,再设计的地理数据库是"动态的",能方便的存储时间数据和应用SQL语言回答与时间有关的查询,消除了数据冗余并维护了数据库的完整性。     

基于NPP模型的西藏工布地区固碳释氧能力分析

通过构建NPP遥感估算模型,对西藏工布自然保护区固碳释氧能力进行分析,分别测算出该地区17个用地类型的植被固定CO2和释放O2的物质量。通过研究发现,在选取的土地类型中,固碳释氧能力最强的为有林地;单位面积下固碳能力和释氧能力最强的为裸土地。固碳释氧能力最弱的土地类型均为人类活动频繁的城镇用地、农村居民点和其他用地。相同用地类型单位固碳释氧量的关系为:Y=0.74X。     

需求分析辅助生成系统的探讨与构建

结合自然语言处理技术，对需求分析辅助生成方法进行了研究，给出了一个能将受限汉语书写的需求分析报告自动转换成符合国家标准的软件需求规格说明书的系统．     

The Architecture of CASE Tools Based on EERD Modeling

CASE tools based on EERD modeling are major applicated on development of database application. These tools could improve the efficiency and accuracy of the developing database application greatly. This paper particularly describes the basic architecture and function of CASE tools in this field as well as the implement technology, and presents the whole structure of the concept data model of the data dictionary included by CASE tools through the analyse of sorts of CASE tools in prevalence, and also illustrate the relationship of model elements which compose the concept data model.