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Nowadays web based applications represent an important role in business success, fast global advertisement of products, easy management and internal organization and fast information access are values that have shown decisive for a correct and supported organizations development. This essay describes a project work carried out in the academic environment, with open source tools, in order to develop a classified advertisement platform using web technologies, namely JSP, XML and JavaBeans. The application aims at supplying a set of functionalities related to students and products management, businesses management and the presentation of products between the students themselves. Thus this article presents the methodology followed since the modeling of the application process and the development of a data model that corresponds to the identified needs during the modeling phase of the processes, until the system implementation.

In recent years, there has been enormous research interest in natural resources monitoring. So, there is a need to develop easily accessible, cheap and reliable information systems for monitoring and early warning, which could be used in most natural resources. This paper presents an ongoing information system development that aims the monitoring and supervising of some parameters on water supply, such as quality and quantity. To implement our system we use several technologies in order to monitoring about 100 water tanks in an area of ±1000 Km2. In these technologies is included GSM communication, web infrastructure and sensing equipment that allows the access of information from any place of the world. In paper sections the main blocks of the system architecture are described in detail.