What is web gis

What is web gis

• 1.
  Learning objectives At theend of this lesson , you should be able to:  Define Web GIS Name Components of Web GIS Why should I learn or Use Web GIS? Classify Ways Web GIS Can Answer Questions Summarize the History of Web GIS
• 2.
  Defining Web GIS "WebGIS is a type of distributed information system, comprising at least a server and a client, where the server is a GIS server and the client is a web browser, desktop application, or mobile application. "
• 3.
  Defining Web GIS "WebGIS can be defined as any GIS that uses web technology to communicate between a server and a client." A Practical Definition
• 4.
  Components of WebGIS Client (Web browser, mobile application, desktop application) internet connection Web server Meta data Map server
• 5.
  Why Should Ilearn or use Web GIS? Types of Questions We Can Ask In what Web GIS is different from Desktop GIS? Gis functionality changes or expands with Web GIS? How much that costs to deploy a Web GIS in an organization? May I supposing to be a GIS professional to use Web GIS?
• 6.
  Answering Web GISQuestions How it looks Image cc-by- Google Earth
• 7.
  Answering Web GISQuestions client server has URL so that client can find it on the web has HTTP specifications to send requests Requests performs the requested GIS operation 1 2 3 responses via HTTP responses in many formats (HTML, binary image,XML or JSON) 4 How it Works
• 8.
  Answering Web GISQuestions Display the Data onto the Web Publish content onto Web for external consumption. Nokia city lens
• 9.
  Answering Web GISQuestions Free for Users! The vast majority of Internet content is free of charge to end users, and this is true of web GIS. Generally, you do not need to buy software or pay to use web GIS.
• 10.
  Answering Web GISQuestions Low cost for an organization Organizations that need to provide GIS capabilities to many users can also minimize their costs through web GIS.
• 11.
  Web Gis Functions Mapping/visualizationand query (attribute or spatial) Collaborative collection of geospatial information. E.g., wikimapia, OpenStreetMap. Geospatial analysis: measurement, optimal driving path, routing, pollution dispersion modeling, retail site selection
• 12.
  Web GIS inthe Past 1993 :The First Map Server based on CGI/Perl :Xerox Parc Map Viewer
• 13.
  Web GIS inthe Past 2004: OpenStreetMap, an open source, open content world map founded by Steve Coast..
• 14.
  Web GIS Today WebGIS continues to increase his functionality
• 15.
  Web GIS Today WideDeployment of Web GIS
• 16.
  Summary Web GIS isa lot of Things Concepts and Tools to Ask and Answer Spatial Question Software, Data, Networks, Workflows,Procedures Geography is old; Web GIS is Modern Increasingly Common in Decision Making in all domain