Geographic Information Systems

Slides:



Advertisements
Similar presentations
11 Introduction Dr. Miguel A. Labrador Department of Computer Science & Engineering
Advertisements

WebGIS. Web & GIS ….WebGIS Access without purchasing proprietary software Data directly from producer Emerging new market.
Internet GIS. A vast network connecting computers throughout the world Computers on the Internet are physically connected Computers on the Internet use.
Your Interactive Guide to the Digital World Discovering Computers 2012 Edited by : Noor Al-Hareqi.
For more notes and topics visit:
Geographic Information Systems Web GIS. What is a Web GIS? ► Web GIS is an on-line version of geographic information system ► Using it, GIS data and functions.
The Internet’s Hardware Much of the hardware components that make up the Internet are owned or shared by thousands of private and public organizations.
Databases and the Internet. Lecture Objectives Databases and the Internet Characteristics and Benefits of Internet Server-Side vs. Client-Side Special.
GIS technologies and Web Mapping Services
 Computer Networking Computer Networking  Networking terminology Networking terminology  Client Server Model Client Server Model  Types of Networks.
Matthew Lerner Senior Product Specialist June, 2008 Location Intelligence: GIS Mapping with WebFOCUS and ESRI.
Networked Information Systems 1 Advantages of and classified by their size & architecture or design.
Geographic Information Systems Cloud GIS. ► The use of computing resources (hardware and software) that are delivered as a service over the Internet ►
Systems Analysis and Design for the Small Enterprise Chapter 13 Networking.
Unit – I CLIENT / SERVER ARCHITECTURE. Unit Structure  Evolution of Client/Server Architecture  Client/Server Model  Characteristics of Client/Server.
A system sharing informati on and services with individuals and groups webster.com/dictionary/ne tworking webster.com/dictionary/ne.
NETWORK HARDWARE AND SOFTWARE MR ROSS UNIT 3 IT APPLICATIONS.
GPS (Global Positioning System). Allows you to share your location in real time and locate your friends using smartphones and GPS.
NETWORKING FUNDAMENTALS. Network+ Guide to Networks, 4e2.
Web Design New Brighton High School Exploring the History of the World Wide WebWorld Wide Web.
System Architecture & Hardware Configurations Dr. D. Bilal IS 582 Spring 2008.
WIDESCREEN PRESENTATION Tips and tools for creating and presenting wide format slides.
Sharique Ali Khan. THE HUNTERS:  seekers of ??  Friends searches THE PROVIDERS:  Ordinary people in need of some help  Friends / Employers  Emergency.
Mary Ganesan and Lora Strother Campus Tours Using a Mobile Device.
GIS IN THE CLOUD Cloud computing furnishes scalable GIS technology that is maintained off premises and delivered on demand as services via the Internet.
Mobile Computing CSE 40814/60814 Spring 2017.
Fundamentals of Information Systems, Sixth Edition
Chapter 12: Architecture
TIM 58 Chapter 11: Physical Architecture Layer Design
Edited by : Noor Al-Hareqi
Instructor: Ahmed Jafer
Web Concepts Lesson 2 ITBS2203 E-Commerce for IT.
System Architecture & Hardware Configurations
Computer Networks Part 1
Edited by : Noor Al-Hareqi
What is WWW? The term WWW refers to the World Wide Web or simply the Web. The World Wide Web consists of all the public Web sites connected to the Internet.
6. GI System Software.
MVC and other n-tier Architectures
WELCOME Mobile Applications Testing
Geographic Information System
System Architecture & Hardware Configurations
CHAPTER 2 Application Layer.
EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE
Physical Architecture Layer Design
Connecting to the Internet
#01 Client/Server Computing
Mobile Computing CSE 40814/60814 Spring 2018.
Web Development & Design Chapter 1, Sections 4, 5 & 6
Networks, telecommunications
Networks Intro to Digital Technology
Computing in the Modern World Unit 4
Geospatial Technology Evolution and Future Trends
Networking Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually,
An Introduction to Computer Networking
Edited by : Noor Al-Hareqi
Network Models, Hardware, Protocols and number systems
Mobile Commerce and Ubiquitous Computing
Tiers vs. Layers.
Chapter 12: Physical Architecture Layer Design
Part of Chapter 1 Key Concepts Networks
Overview The World Wide Web has changed the way that people
Networks, telecommunications
Networking Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually,
Basics Intro.
Edited by : Noor Al-Hareqi
By Hussein Alhashimi.
Mobile Commerce and Ubiquitous Computing
#01 Client/Server Computing
Presentation transcript:

Geographic Information Systems Web GIS

What is a Web GIS? Web GIS is an on-line version of geographic information system Using it, GIS data and functions are made available over the Internet It is also called Internet GIS, or Online GIS Use Internet as development platform

Client-Server network A client/server network involves a large number of client computers connecting to a single, central server computer Servers usually are high speed computers with robust hardware capacity to handle large volumes of client service requests

The Internet

Basics of Web-GIS Internet or Intranet Data Clients Server(s) Optional Separate data storage Data

How does Web GIS work? Users (clients) submit requests for maps, data, or analysis to a Web server The server processes the requests and returns requested maps, data, or analysis to the clients

Why Web GIS? Avoid the complicated (and often expensive) GIS software installation in individual client computers Users can access GIS database and GIS applications from anywhere through a common Web browser Ubiquitous accessing and sharing of information

Three types of architectures Thin client architecture Medium client architecture Thick client architecture

Three types of architectures Thin client architecture - users only need to display maps Medium client architecture - users perform some data manipulation and analysis locally on their own computers, in addition to map display Thick client architecture - users perform advanced analysis locally, in addition to map display and simple analysis

Three types of architectures Thin client Medium client Thick client

Thin client architecture

Thin client architecture .. - Display - requires a standard browser Server - Map Render and Element Generator - out of its databases and applications

Thin client architecture .. Protocol (primarily for data transfer) - e.g. raster data transfer Uses - map display Examples: - Google Map

Medium client architecture

Medium client architecture ..

Medium client architecture .. - Display and Map Render - requires a plug-in in the web browser Server - Element Generator - out of it’s applications and databases

Medium client architecture .. Protocol - encoded vector Uses - map display, data query, and simple analysis (measure distance, draw a polygon) Example: - Google Earth

Thick client architecture

Thick client architecture .. - Display, Map Render, Element Generator - requires plug-ins and stand alone tools Server - - allows for access to its applications and databases

Thick client architecture .. Protocol - raster, vector, etc. Uses - display, data query, and advanced analysis (overlay, buffer) Example: - ArcGIS for Server http://www.esri.com/software/arcgis/arcgisserver

Applications – Location-based Services (LBS) A location-based service - an information service provided by a device that knows where it is LBS include services to identify the location of a person, an object, or a place, such as the nearest ATM machine or the whereabouts of a friend

LBS-capable device Any device that includes a GPS capability, such as a laptop or a smartphone Can tack postal parcels, vehicles, coupons, etc. E-commerce, social networks, mobile networks Web of things, web of people, web of events

Required technologies Key: determine the location of devices LBS requires technologies to work together - Positioning technologies (GPS) - Terminal technologies (cell phones) - Networking technologies - Database technologies (indexes, spatio-temporal DBs) - LBS software (services, base SW)

Required technologies .. - … - GIS to Provide and administer base map data such as man made structures (streets, buildings) and terrain (mountains, rivers) Manage point-of-interest data such as location of gas stations, restaurants, nightclubs, etc)

LBS for Mobiles Emergency Services E-911 Road-side service Directions Loc-Based Information - Push Reminders Traffic / weather alerts Loc-Based Information - Pull Concierge Shopping City guide

LBS for mobiles .. Navigation Directions prior to trip Enroute planning / recommendations Tracking Workforce / Vehicle (fleet/stolen/lost) Family Location-Enhanced Imaging Location info captured with video or sound Send images with maps Location Sharing Friend-finder / landmarks

Emergency services Provide one of the strongest motivations for LBS Problem: users of a cellphone is unable to report his/her current location to enable effective response A solution: install GPS in the vehicle www.onstar.com

Conclusion - Trends in GIS

Potential of Web GIS Internet users will be able to access GIS applications from their browsers without purchasing proprietary GIS software WebGIS will make it possible to add GIS functionality to a wide range of network-based applications in business, government, and education institutions