地圖伺服器開發之系統分析

System Analysis to The Development of A Web Map Server

沈志全(Jhih-Cyuan Shen)

指導教授 ： 張哲豪

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2005年)

https://doi.org/10.6841/NTUT.2005.00298

摘要

傳統上，空間資訊的主要來源為紙張地圖。然而，隨著各級政府單位對於基本空間資訊內容的重視與建置，以及資訊技術提升，數位方式已經成為許多空間資訊使用者的共同需求。透過桌上型地理資訊系統(GIS)應用軟體來瀏覽或處理空間資訊，將受限於單機使用造成負擔成本較高，主要使用者也因為學習門檻較高，侷限在於具有專業技能之使用者；透過網際網路的分享與使用，WebGIS便成為方便且價格低廉，且符合一般民眾使用的空間資訊供應之方法。
生活中的食、衣、住、行均可透過WebGIS提供相關資訊，而WebGIS需藉由網路地圖伺服器才能提供服務。本文收集目前網路地圖伺服器相關技術與OGC規格，結合現有自行開發地圖伺服器所欠缺之功能項目，提出地圖伺服器應有之規格與分類。利用東港溪案例，使用商業軟體、自由軟體與自行開發之地圖伺服器進行測試比較，證明經自行開發之Web Map Server可行性。並提出不同需求解決方案，做為後續建置WebGIS服務相關人員參考依據。並利用物件導向分析與設計的方法將提出之規格與需求進行分析設計，將現有自行開發之地圖伺服器進行更新設計，過程中以USECASE分析使用者可能提出之要求及系統回應狀態並使用使用UML加以記錄。經由使用者觀點重新規劃系統需求與架構。

關鍵字

網路地圖伺服器 ； 開放式空間資訊組織 ； 統一塑模法 ； 使用案例

並列摘要

Traditionally, people should fetch spatial information by maps. As information technologies being developed, governments actively establishe the data contents of base spatial information to fulfill the increase of spatial information requirements in various trades. However, users are limite to those with professional skills due to the higher cost of desktop GIS applications. On the other hand, it causes the WebGIS to becomes the spatial information representation and providing method, which is not only the cheapest and most convenient but also the most sufficient for common users.
WebGIS can provide the information relating our daily lives. WebGIS should provide services by web map server. Therefore, in this thesis we collected current corresponding technologies for web map server and OGC specifications. Moreover, we then proposed the necessary specifications and classifications for map server by integrating additional function items into current version of our developed software. Consequently, in Donggang river case we demonstrate the possibility of our developed Web Map Server by the benchmark of using commercial software, open source software and our version. We further proposed various solutions for solving requirements to be the references for subsequent development of WebGIS services. Furthermore, we improved our developed version by the methodology of Object-Oriented analysis and design. UML is to applied for system planning and USECASE is to applied for analyzing user requirements and system responses. Based on user perspectives, we re-analyzed the system requirements and architectures.

並列關鍵字

Web Map Server ； OGC ； UML ； USECASE

參考文獻

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