Glossary of Geographic Information Systems Terms
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Questions and Answers

What is the purpose of a map in GIS?

  • To conduct network analysis on spatial data
  • To display real-world features and their geographic relationships (correct)
  • To store metadata about spatial features
  • To provide a representation of data in a spatial database

    • What is the function of menus in the context of computers?

  • To display metadata information
  • To provide options for command input by users (correct)
  • To perform network analysis
  • To create digital spatial features

    • Which term refers to data about data in GIS?

  • Spatial database
  • Map analysis
  • Network analysis
  • Metadata (correct)

    • What do network analysis queries in GIS typically reference?

    <p>Connected linear and node features</p> Signup and view all the answers

    In GIS, what do menus on computers primarily provide?

    <p>Options for command input by computer users</p> Signup and view all the answers

    What is the main difference between maps that exist digitally and those that exist manually (on paper)?

    <p>Digital maps can be interacted with electronically</p> Signup and view all the answers

    What is accuracy in the context of Geographic Information Systems?

    <p>The closeness of observations or computations to their true spatial value</p> Signup and view all the answers

    What is address matching?

    <p>The process of converting textual addresses to locations on a map</p> Signup and view all the answers

    What is annotation in the context of Geographic Information Systems?

    <p>Text or labels plotted graphically on a map or drawing</p> Signup and view all the answers

    What is the process of locating an address on a map called?

    <p>Address matching</p> Signup and view all the answers

    What term is used to refer to the differential between the actual real-world location of a point and its assigned geographic coordinate?

    <p>Absolute accuracy</p> Signup and view all the answers

    Which of the following is NOT a process described in the text?

    <p>Digitizing</p> Signup and view all the answers

    What does network routing refer to in transportation networks?

    <p>Highlighting all node and link features along the optimal path between a starting point and one or more destinations</p> Signup and view all the answers

    What is a non-graphic database also known as?

    <p>Non-Spatial</p> Signup and view all the answers

    What does the term 'on-the-fly' refer to?

    <p>Temporary performance or activity when needed</p> Signup and view all the answers

    What does network tracing refer to in utility networks?

    <p>Highlighting all node and link features within a gravity of pressure network that are both physically and logically connected to a test point</p> Signup and view all the answers

    Which of the following is NOT a key aspect of on-the-fly processing?

    <p>Highlighting all node and link features along the optimal path</p> Signup and view all the answers

    What does the acronym GPS stand for?

    <p>Global Positioning System</p> Signup and view all the answers

    Which term refers to a set of tabular data records, each record containing multiple data fields?

    <p>Non-Graphic Database</p> Signup and view all the answers

    What does the term 'Graphic User Interface' refer to?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of 'ground control' in cartography?

    <p>To provide reference points for rectifying the scale and accuracy of cartographic products</p> Signup and view all the answers

    What is the relationship between the 'graphic' and 'non-graphic' interface?

    <p>The graphic interface is used for spatial data, while the non-graphic interface is used for attribute data</p> Signup and view all the answers

    What is the primary function of a Graphic User Interface (GUI)?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of ground control points in cartography?

    <p>To rectify the scale and accuracy of cartographic products</p> Signup and view all the answers

    What is the definition of a vector in the context of spatial data?

    <p>A mathematical object with precise direction and length but without specific location</p> Signup and view all the answers

    What is the key purpose of a viewer software system in the context of spatial databases?

    <p>All of the above</p> Signup and view all the answers

    What is the definition of a window in the context of spatial data?

    <p>A rectangular portion of a larger mapped area selected for display</p> Signup and view all the answers

    Which of the following is NOT mentioned as a component of a user interface?

    <p>Spreadsheets</p> Signup and view all the answers

    What is the definition of a vector method for storing spatial data?

    <p>A method for storing spatial data involving assigning coordinates for each entity</p> Signup and view all the answers

    What is the primary function of a full function read-write product in the context of spatial databases?

    <p>To support a rich command set that is greater than that available in viewer products</p> Signup and view all the answers

    Study Notes

    Purpose of Maps in GIS

    • Maps serve as visual representations of spatial data, aiding in understanding geographic relationships and patterns.
    • They facilitate decision-making and analysis for planning, resource management, and environmental monitoring.

    Functions of Menus in Computers

    • Menus provide organized options and commands for user interaction with software applications.
    • They enhance usability by categorizing tasks and functions into accessible lists.

    Data About Data in GIS

    • The term "metadata" refers to data about data, providing context, source, and structure of the primary geographic data.

    Network Analysis Queries in GIS

    • Network analysis queries reference transportation and utility networks, enabling the analysis of routes, flow, and connectivity.
    • Menus primarily provide tools and functions necessary for data manipulation, analysis, and visualization within the GIS environment.

    Digital vs. Manual Maps

    • Digital maps can be dynamically updated and manipulated, while manual maps are static and require physical copies for viewing.

    Accuracy in Geographic Information Systems

    • Accuracy refers to the closeness of data to its true value or real-world location, influencing the reliability of GIS outputs.

    Address Matching

    • Address matching is the process of associating a given address to its correct geographic location on a map.

    Annotation in GIS

    • Annotation involves adding text or graphics to a map to provide additional context or information about specific features.

    Locating an Address on a Map

    • The process of locating an address on a map is known as geocoding.

    Differential Between Actual Location and Assigned Coordinate

    • This differential is termed "positional error," indicating the discrepancy between a point's real-world location and its mapped coordinates.

    Network Routing in Transportation Networks

    • Network routing refers to the determination of optimal paths for travel across a transportation network, considering various factors like distance or time.

    Non-Graphic Database

    • A non-graphic database is also known as a "tabular database," consisting of tables containing structured data records.

    'On-the-Fly' Processing

    • The term 'on-the-fly' refers to real-time data processing that allows for immediate updates and changes to analyses or visualizations without needing to pre-process the data.

    Network Tracing in Utility Networks

    • Network tracing is the process of following the pathways of utility systems to identify connections, faults, or flow direction.

    Key Aspects of On-the-Fly Processing

    • Key aspects include real-time analysis and dynamic data rendering, but specifics may not have been mentioned in provided context.

    GPS Acronym

    • GPS stands for "Global Positioning System," a navigation system that uses satellite signals to determine locations on Earth.

    Tabular Data Records

    • A "data table" refers to a collection of tabular data records, where each record contains multiple fields of related information.

    Graphic User Interface Definition

    • The term "Graphic User Interface" (GUI) refers to a visual interface that allows users to interact with software through graphical elements like buttons and icons.

    Ground Control in Cartography

    • Ground control points serve as precise reference points on the ground used to ensure accuracy in mapping and geospatial data collection.

    Relationship Between Graphic and Non-Graphic Interface

    • The graphic interface provides visual communication while the non-graphic interface often involves data manipulation through textual or tabular formats.

    Primary Function of a GUI

    • The primary function of a GUI is to facilitate user interaction with software in an intuitive and visually accessible manner.

    Ground Control Points Purpose

    • Ground control points are critical for establishing reference locations to improve the precision of cartographic representations.

    Vector Definition in Spatial Data

    • A vector in spatial data represents geographic features using points, lines, and polygons, allowing for detailed representation of real-world entities.

    Key Purpose of Viewer Software in Spatial Databases

    • Viewer software enables users to visualize and interact with spatial data, allowing for analysis and interpretation of geographic information.

    Definition of a Window in Spatial Data

    • In spatial data, a "window" refers to a specified area of the map that is currently being viewed or analyzed.

    Components of a User Interface

    • Specific aspects that may not be listed as components could include physical hardware interactions or peripheral devices.

    Vector Method for Storing Spatial Data

    • The vector method entails storing spatial data based on geometric shapes representing features rather than using raster grid systems.

    Full Function Read-Write Products in Spatial Databases

    • These products allow comprehensive interaction with the database, enabling users to read, modify, and store spatial data effectively.

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    Description

    Learn about key terms and phrases related to Geographic Information Systems (GIS) in this glossary. This glossary is a subset of the one developed by the Urban and Regional Information Systems Association (URISA). Explore terms like accuracy, absolute accuracy, and more.

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