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Navigating INFO: Additional Concepts
(Missouri Spatial Data Information Service, 1999)
This presentation looks at some aspects of INFO not covered by previous presentations. They include creating and using arrays, cross-tabulation, redefined keys, alternate directories, displaying text with INFO, purging ...
Navigating INFO: Database Hygiene
(Missouri Spatial Data Information Service, 1999)
Database hygiene is the process of creating and maintaining an efficient relational
database, as well as modifying existing databases that were poorly defined or implemented. Subtopics offered in this presentation include ...
Navigating INFO: Relates
(Missouri Spatial Data Information Service, 1999)
INFO database diagrams are graphics showing all the info files in a relate sequence. This presentation offers several, including the General Relate, the Ordered Relate, the Link Relate, the Double Relates, the Append Relate, ...
Database Concepts
(Missouri Spatial Data Information Service, 1999)
This presentations highlights the advantages of using a database management systems approach to GIS. Database usage will lead to a reduction in data redundancy, as shared rather than independent databases will reduce the ...
From GIS to Geo-Informatics
(Missouri Spatial Data Information Service, 1999)
Geo-Informatics are the integration of: a)GIS - geographic information systems, b) Remote Sensing - satellite and aircraft, c)GPS - global positioning systems and d)Digital photogrammetry, all in the larger context of ...
Spatial Interpolation
(Missouri Spatial Data Information Service, 1999)
Spatial interpolation is the procedure of estimating the value of properties at unsampled sites within the area covered by existing observations. In almost all cases the property must be interval or ratio
scaled. It can ...
Database Design
(Missouri Spatial Data Information Service, 1999)
This presentation focuses on the design of GIS databases, starting with topographical structure. Database design is a scheme in which database goals are defined and database alternatives are laid out, analyzed, and an ...
Issues of Scale and Accuracy
(Missouri Spatial Data Information Service, 1999)
The world is infinitely complex. The contents of a spatial database represent a particular view of the world. The user sees the real world through the medium of the database. The measurements & samples contained in the ...
GIS Tools
(Missouri Spatial Data Information Service, 1999)
This presentation offers a discussion of tools for use in GIS. It begins with a list of GIS software components, including graphics processing, database management, basic cartographic functions, special applications, and ...
Temporal & 3-D Representations
(Missouri Spatial Data Information Service, 1999)
Although the vast majority of GISs currently
work only in two dimensions, across the plane, certain applications require the addition of other dimensions, namely time or elevation/depth. Most geological applications require ...
Functional Requirement Study
(Missouri Spatial Data Information Service, 1999)
This presentation looks at Functional Requirement Studies (FRS) for GIS. A FRS consists of five steps: 1)Identify Decisions, 2)Determine Information Products Needed, 3)Determine Frequencies, 4)Identify Data Sets Required, ...
Software
(Missouri Spatial Data Information Service, 1999)
This presentation introduces the parts and pieces of a GIS, explains the components of a GIS system, review computer networks, examines peripherals, and explores what the future holds for GIS. It also discusses the role ...
The Raster GIS
(Missouri Spatial Data Information Service, 1999)
Current GISs differ according to the way they
organize reality through the data model. Each model tends to fit certain types of data and applications better than others. The data model chosen for a particular project or ...
GIS Tools
(Missouri Spatial Data Information Service, 1999)
This presentation offers a rundown of tools for use in GIS. GIS application software components include graphics processing, database management, basic cartographic functions, special applications, and application development ...
MSDIS
(Missouri Spatial Data Information Service, 1999)
This presentation provides an introduction to the Missouri Spatial Data Information Service. It is a spatial and tabular data retrieval and archival system. MSDIS is responsible for data storage and access, standardization ...
MSDIS (No Graphics)
(Missouri Spatial Data Information Service, 1999)
This presentation provides (with fewer graphics than the similarly-named file) an introduction to the Missouri Spatial Data Information Service. It is a spatial and tabular data retrieval and archival system. MSDIS is ...
Spatial Databases as Models of Reality
(Missouri Spatial Data Information Service, 1999)
The real world is too complex for our
immediate and direct understanding. We create “models” of reality that are intended
to have some similarity with selected aspects of the real world. Databases are created from these ...
Discovering Spatial Data: Use of the Clearinghouse
(Missouri Spatial Data Information Service, 1999)
This presentation provides background on the use of FGDC-style metadata for Clearinghouse
Development, and provides managers and users with guidance on the use of the Clearinghouse to find spatial data. A Clearinghouse ...
Vector GIS
(Missouri Spatial Data Information Service, 1999)
The Vector GIS model is based on vectors (as opposed to spaceoccupancy raster structures). Its fundamental primitive is a point. Objects are created by connecting points with straight lines. Some systems allow points to ...
Metadata Standards Status & Futures
(Missouri Spatial Data Information Service, 1999)
This presentation looks at the Federal Geographic Data Committee's Content Standard for Digital Geospatial Metadata Version 2 (CSDGM), which is an update from from the previous version and was approved in 1998. It also ...