检索结果-南通市图书馆

作者： Khalil Ahmed Saleh Al-Mekhlafi（哈里力）东北师范大学

学位级别：硕士

With the development of Internet technology, methods, and tools of the development of information systems, especially in electronic commerce field, leads to make theoretical and practical studies for developing electronic commerce systems. Since Yemen is a developing country, we have to pay a great deal of attention to the great role that the Internet plays in the world of business. This thesis presents study of the state of development information systems in Yemen especially in E-Commerce information systems, also focusing on the methods and tools which were used in the developing information systems in Yemen, and the rate of using object-oriented Software Engineering in the universities and software companies of Yemen through developing information systems. The study showed that about 95% of information systems in Yemen were developed by using traditional software engineering, only about 5% of information systems were developed by using object-oriented software engineering. Since Yemeni government is moving towards E-Commerce & E-Government and Based on the above results, this thesis also presents case study of developing electronic commerce information system of Online Bookstore System (OBS) for sales the books through the Internet.On one hand , the Online Bookstore System has been developed by using the object-oriented technology as software engineering methodology based on Coad & Yourdon method for object-oriented analysis model which has five layers and object-oriented Design model which has four components, because the Coad & Yourdon method is easy to study and apply. The case study can be seen as 3-Tier Architecture E-Commerce System which has become popular today. On the other hand, every developer, programmer, and who interested in developing information systems especially in electronic commerce systems and software engineering can make use of such kind of this thesis.

关键词： object-oriented analysis object-oriented Design E-Commerce C/S Structure B/S Structure

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Semiautomated OOA Map of Morphoclimatic Attributes from Sao Joao-MG River Basin, Brazil

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Journal of Earth Science and Engineering 2012年第7期2卷 418-429页

作者： Evandro Klen Panquestort Raul Sanchez Vicens Maria Luisa Pimenta Fonseca Favale Geography Department University of State of Minas Gerais Carangola 36830000 Brazil Geography Department University Federal Fluminense Niter6i 24210340 Brazil Geography Deptartment University Federal of Rio de Janeiro Rio de Janeiro 21941972 Brazil

This study proposes a survey of environmental information by applying techniques of modeling, image segmentation and OOA （object-oriented analysis） in the definition of landscape units based on morphoclimatic atributes. Landscape attributes such as climate and relief （morphoclimatic） were selected to start the characterization of the Silo Joio--MG river basin, located in southeastern region Brazil. The semiautomated mapping was produced from data extracted, respectively, of the DEM Aster and Topodata, and grid Worldclim. This database was processed and scaled to l：100,000 scale, generating a geomorphological classification, according to criteria of IPT （Instituto de Pesquisas Tecnologicas）, two climatic classifications, the one by the methodology of Koppen and the other one by methodology Thornthwaite ＆ Mather and a classification of land use. The thematic maps were associated in GIS with a geological base, soil vector, defining landscape units.

关键词： Attributes of landscape object-oriented analysis semiautomated map.

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