GIS terms
Define geospatial data. - answer The data that describes both the LOCATION and
CHARACTERISTICS of spatial features (such as roads, land parcels, and vegetation
stands on the Earth's surface.)
What is GIS? - answer Geographic Information Systems is a computer system for
capturing, storing, querying, analyzing and displaying geospatial data.
Location-based services are probably the most commercialized GIS-related field. -
answer Wikipedia defines Location Based Services (LBS) as information and
entertainment services accessible with mobile devices through the mobile network and
utilizing the ability to make use of the geographical position of the mobile device. LBS
services include services to identify a location of a person or object, such as discovering
the nearest banking cash machine or the whereabouts of a friend or employee. LBS
services include parcel tracking and vehicle tracking services. They include
personalized weather services and even location-based games. They are an example of
telecommunication convergence.
What kinds of software and hardware are you currently using for GIS classes and
projects? - answer Software package (e.g., ArcGIS 9.x) and Hardware (PC Windows
XP)
Define geometries and attributes as the two components of GIS data. -
answerGeometric data describe the locations of spatial features, which may be discrete
or
continuous.
Attribute data describe the characteristics of spatial features.
Explain the difference between vector data and raster data. - answerVector data use
points and their x-, y-coordinates to represent spatial features of
points, lines, and areas.
Raster data use a grid and grid cells to represent the spatial variation of a feature (such
as elevation or precipitation.)
Vector Data Model: Explain the difference between the georelational data model and
the object-based data model. - answerThe georelational data model uses a split system
to store spatial data and attribute data.
The object-based data model stores spatial data and attribute data in a single system.
How does data exploration differ from data analysis? - answerData exploration involves
the activities of exploring the general trends in the data, taking a close look at data
Define geospatial data. - answer The data that describes both the LOCATION and
CHARACTERISTICS of spatial features (such as roads, land parcels, and vegetation
stands on the Earth's surface.)
What is GIS? - answer Geographic Information Systems is a computer system for
capturing, storing, querying, analyzing and displaying geospatial data.
Location-based services are probably the most commercialized GIS-related field. -
answer Wikipedia defines Location Based Services (LBS) as information and
entertainment services accessible with mobile devices through the mobile network and
utilizing the ability to make use of the geographical position of the mobile device. LBS
services include services to identify a location of a person or object, such as discovering
the nearest banking cash machine or the whereabouts of a friend or employee. LBS
services include parcel tracking and vehicle tracking services. They include
personalized weather services and even location-based games. They are an example of
telecommunication convergence.
What kinds of software and hardware are you currently using for GIS classes and
projects? - answer Software package (e.g., ArcGIS 9.x) and Hardware (PC Windows
XP)
Define geometries and attributes as the two components of GIS data. -
answerGeometric data describe the locations of spatial features, which may be discrete
or
continuous.
Attribute data describe the characteristics of spatial features.
Explain the difference between vector data and raster data. - answerVector data use
points and their x-, y-coordinates to represent spatial features of
points, lines, and areas.
Raster data use a grid and grid cells to represent the spatial variation of a feature (such
as elevation or precipitation.)
Vector Data Model: Explain the difference between the georelational data model and
the object-based data model. - answerThe georelational data model uses a split system
to store spatial data and attribute data.
The object-based data model stores spatial data and attribute data in a single system.
How does data exploration differ from data analysis? - answerData exploration involves
the activities of exploring the general trends in the data, taking a close look at data
