Mobile GIS CHAPTER 1: GIS AND THE INFORMATION AGE The Information Age:  The world changing and the methods of meeting the needs of those changes are also changing.  in the past, data was analog, mostly written or typed, stored on paper, information was independent, seldom integrated with other data outsides its original  computers and other electronic equipments such as satellite are the machinery of new economic and couture  Data and information are the currencies of the information age, the internet became the major communication medium  GIS is a central component in the environmental information system  Technology change, stage of acceptance : Slide 1

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Mobile GIS Technologic Change Slide 3 Stages of acceptance  Reluctance Adopt(التردد في القبول)  Cautious Acceptance ((القبول الحذر  Full Use  Innovative Use (الإستعمال الإبداعي)

Mobile GIS Value of Data & Information Slide 4  What it is the value of information?  How important is it ?  What it can be used for?  GIS can be perceived as a technology but ( what are the economic, and social benefits ?

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Mobile GIS Data visualization Visualization is the presentation of data in graphic form The map gives the best impression of what the information means Computer technology enhances visualization by offering sophisticated techniques of changing data into pleasing and understanding display. Slide 6

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Mobile GIS Slide 8 What is GIS? GIS: A computer based technology and methodology for collecting, managing, molding, and presenting geographic data for a wide range of applications. Geography: the real world : spatial realities Information: data and information, their meaning and use Systems: computer technology and its support infrastructures.

Mobile GIS Slide 9 GIS Description GIS has a numerous functions, its primary roles presented in the following, dealing with geographic data from input to output: Collection : gathering data from many sources, including global communications media, the remote sensing satellite,the digitization table is for converting paper map into digital computer map, and other sources

Mobile GIS GIS Description, Cont Storage and management: Efficient digital storage is necessary, administration and keeping track of data, including integration of various types of data sets into a common database, Database management is replacing the physical map Slide 10

Mobile GIS GIS Description, Cont Retrieval: Easy and efficient selection and viewing of data in a variety of ways, monitors, printers, and internet. Conversion: changing data from one form to another, or map format to match another Analysis: analyzing data to produce insight and new information using various techniques Slide 11

Mobile GIS Slide 12 GIS Description, Cont Molding: simplifying the data to understand how things work or to explain what the data means, a generalization of data or a simple explanation of reality Display: presenting data in various ways (such as maps, graphs, and reports) for easy understanding.

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Mobile GIS GIS Project Slide 14 A GIS project is the foundation of GIS work, it consists of at least one central database, and graphic presenting features and themes. Theme is a layer of data made of one or more features (geographic objects) of a similar topic

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Mobile GIS Slide 16 GIS Project, Cont A GIS project organize many types of data into a common structure, GIS data comes from many sources Maps: the most common type of geographic data GPS(global position system): A special satellite system that provides highly accurate locations and elevation data from anywhere in the world

Mobile GIS Slide 17 Global Positioning System

Mobile GIS Slide 18 Global Positioning System Where on earth am I ? Constellation of satellites Handheld devices Various Applications Accuracy What is GPS?

Mobile GIS Slide 19 GIS Project, Cont Imagery: Remote sensing such as satellite or aircraft digital imagery, provides a major source of GIS data, this can include scanned pictures Reports: text data that dealing with spatial subjects Tabular data: lists of numeric data, such as descriptive, census, or economic

Mobile GIS Slide 20 GIS Project, Cont After the project has been assembled (which sometimes can require 75% or more of the project time), other GIS work begins, such as analysis, molding, and presentation

Mobile GIS GIS Infrastructure There at least six primary components of GIS, which presented by a pyramid, for the important from the bottom up. Organization and people : the most important part of a GIS structur Applications: the uses, the purpose for its productions Methodology: the procedures, and ways of using GIS Slide 21

Mobile GIS Data: is the heart of GIS operations Software: the computer programs needed to run GIS Hardware: the machinery on which GIS operates. Slide 22 GIS Infrastructure, Cont

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Mobile GIS GIS Hardware Components Data input: copy maps, keyboard, Cd’s, tape reader, scanner, GPS, and networks Data management and analysis: many types of computers, and other types of devices Output : printers, and plotters (common mapping devices) Slide 24

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Mobile GIS Slide 26 Thank you