This paper describes the application of evaluation methods to a distance course and discusses the need for ongoing evaluation to control the quality of distance education courses. During the last quadrimester of 1996, a course in Graphic Mechanics was offered in Brazil through a distance education program entitled "Programa Educ@r" 1 via the World Wide Web. Evaluation methods and data analysis were developed and applied during the period of the course, and results of the evaluation are discussed.
RESUMO:O SIAT é um sistema especialista para Avaliação de Terras derivado do MicroLEIS -Land Evaluation Information System desenvolvido na Espanha. Na primeira versão, as 12 variáveis foram adaptadas e ajustadas para condições tropicais, assim como a estrutura do programa e o banco de dados. Os testes de campo mostraram que os melhores resultados foram obtidos para escalas próximas de 1:100.000. Nesta segunda versão, os intervalos das variáveis foram redefinidos e uma interface de comunicação com o SIG IDRISI foi introduzida, permitindo a troca de dados entre os dois programas. Outra modificação importante foi a adoção de uma equação para calcular a erosividade no lugar de mapa apresentado no Manual do Usuário. Os testes de campo mostraram que o uso do SIAT é agora mais funcional, com melhor resolução, permitindo trabalhar com escalas em torno de 1:50.000, além de ser adaptável para todo o território brasileiro. A versão do SIAT pode ser obtida pelo endereço www.rc.unesp.br/igce/ceapla/biblioteca/softwares/siat.html. PALAVRAS-CHAVE: avaliação de terras, capacidade de uso, SIG. LAND EVALUATION SYSTEM -SIAT -ADAPTED VERSION ABSTRACT:The SIAT is a specialist system for Land Evaluation derived from the MicroLEISLand Evaluation Information System developed in Spain. In its first version the 12 variables were adapted and adjusted for tropical conditions as well as the program structure and databank. In that time the field tests showed that the best results were obtained for scales near 1:100.000. In this second version the ranges for each variable were redefine and a communication interface with the GIS IDRISI was introduced, which allowed the exchange of data between the two programs. Another important modification was the adoption of an equation to calculate the erosivity in place of the original map as part of the User's Guide. The field tests showed that the use of the SIAT is now much more functional and presents a much better precision enabling the use of scales around 1:50.000, besides it can be adjusted all over the Brazilian territory. The SIAT V.1.4 can be downloaded from
The Corumbatai watershed (1.710 km2 ) in the State of São Paulo - Brazil, is a well known region, mainly because one of the branches of the São Paulo State University - UNESP is located there, where most of the departments are related on environmental sciences. However all available data are in the analogical format and stored in different libraries and departments, which means that they are not as useful as they could be, not only for the University, but mainly for the society. The project followed four steps: 1 - Data Identification and Collection, 2 - Data Completion, 3 - Data Preparation and 4 - Data Input/Multimedia Programming. The Environmental Atlas is structured as follows: PRESENTATION; LOCALIZATION; ABIOTIC ENVIRONMENT: Geology, Geomorphology, Pedology, Climatology, Hydrology; BIOTIC ENVIRONMENT: Natural Vegetation, Forestry and crops, Fauna; SOCIOECONOMY; PHOTOGRAPHIC COLLECTION; WORKING TEAM. All information was integrated through the FLASH 5 (Macromedia) multimedia software. The final product is available at the IGCE-UNESP's website www.rc.unesp.br/igce/ceapla/atlas .
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