以網際服務支援洪氾預警資料之查詢與顯示

Abstract

一個完整的洪氾預警系統包含許多複雜的水 理運算與預警資料。在本文中，我們介紹如何將系統中眾 多的資料庫查詢句封裝成數個網際服務，以及如何利用這 些服務搭配地圖與圖表將資訊適當地呈現於前端介面，以 便使用者直接透過瀏覽器查詢預警的資料。此做法不僅便 利系統的維護與程式碼的再利用，透過實驗顯示，也比傳 統的作法更加有效率。A flood forecasting system consists of many complicated hydraulic data. In this paper, we introduce how to classify different database queries and wrap them into several Web services. We also discuss how to use these Web services to show the warning message and the calculated result on the map or chart. Such approach facilitates system maintenance and code reuse, and experimental studies even show that it is more efficient than the traditional approach.