The component-based design and development of remote sensing system for drought monitoring

In the field of drought monitoring using remote sensing, the software has been lagging behind the applications. For the operational needs of monitoring and evaluating drought, a professional remote sensing application system (named RSDMS) is designed and developed with the concept of component-based technology. Starting from the architecture design, this article details the component-based design patterns of this system, and then discusses some key techniques during the development process. After achieving the general-purpose functionalities, this system also integrates a variety of drought monitoring models in the form of component, showing great flexibility. Meanwhile, the results of preliminary application in Ningxia region of northwestern China are presented to indicate that the system has a good practice effect.