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ASSOCIATION OF CANADA LANDS SURVEYORS - BOARD OF EXAMINERS WESTERN CANADIAN BOARD OF EXAMINERS FOR LAND SURVEYORS ATLANTIC PROVINCES BOARD OF EXAMINERS FOR LAND SURVEYORS ________________________________________________________________________

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ASSOCIATION OF CANADA LANDS SURVEYORS - BOARD OF EXAMINERS WESTERN CANADIAN BOARD OF EXAMINERS FOR LAND SURVEYORS ATLANTIC PROVINCES BOARD OF EXAMINERS FOR LAND SURVEYORS ________________________________________________________________________

SCHEDULE II / ITEM 5 October 2004 LAND INFORMATION SYSTEMS

Note: This examination consists of _9_ questions on _1_ page. Marks

Q. No Time: 3 hours Value Earned

1 Briefly discuss the similarities and differences between a GIS and a LIS. 10 2 What are the advantages and disadvantages of storing geographic data in a

DBMS? 10

3 What are the relative merits and limitations of using raster and vector

representations (in terms of data storage, data retrieval, data analysis, etc.)? 10

4 Describe the concept of layers in a geographic/land information system.

Explain why we organize data in layers in LIS/GIS? Compile a list of

layers and attributes that would likely be included in a LIS. 14 5 Define the term topology and discuss its importance in GIS/LIS. Also

discuss the trend of storing minimum amount of topological relationship

data in a LIS database and computing the rest on the fly when required. 12 6 “Digital terrain modeling is only a fancy term for making contour maps.

That’s it!” Is this statement true? Provide your comments with examples. 10

7 Define the following terms: “accuracy”, “precision”, “error”, and

“uncertainty”. Briefly describe five major components used to determine

the “quality” of digital data when used in a data quality reporting scheme. 12 8 Briefly describe the steps involved in designing a LIS/GIS database,

starting with a conceptual database design. Also show how the entity-

relationship model is used in the database design, using examples. 12 9 What is metadata? Why is the metadata important to LIS? 10 Total Marks: 100

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