Occupational Title: GIS Technician
Key
Purpose: Creates software and data solutions to assist
in the visualization, measurement, and analysis of features or
phenomena that occur on the earth that integrates acquisition,
modelling, analysis, and management of spatially referenced data.
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Critical
Work Function
1 Create and/or Acquire
GIS Data |
Occupational
Skills, Knowledge and Conditions |
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Key Activities
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Performance Criteria
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Occupational
Skills and Knowledge
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Conditions
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Those
duties or task clusters that are necessary to perform each critical
work function.
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Specific
demonstrable performance and standards that indicate when the key
activity has been performed successfully.
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Those
skills and knowledge that are specific to the occupation, such as
technical processes or procedures common across the occupation that are
critical to the related key activity.
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Tools,
resources and equipment necessary to carry out key activities and their
related performance criteria.
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KA1.1
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Define the data requirements, research sources of available
data, and purchase data from reputable source.
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Number
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Criteria
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| 1.1.1 |
Data requirements for the project are identified such that
data types, data attributes, data coordinate systems, datum, and map
projections are properly identified.
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| 1.1.2 |
Project findings are presented, recommendations are made,
and data summarized in an oral and/or written format per company policy.
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| 1.1.3 |
Data sources are identified and listed.
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| 1.1.4 |
Data sets related to the project are located, identified,
and listed
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GIS principles
Data exchange procedures
Computer skills
Database skills
Census data
Facilitation skills
Keyboarding skills
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Personal computer
Geographic information systems software
Word processing software
Spreadsheet software
Database software
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KA1.2
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Develop (and document with metadata ) database(s) including:
defining geometry, attributes, relationships, topology rules, feature
behaviors such as types and domains, incorporating data schema models.
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Number
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Criteria
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1.2.1
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tSubObjsubform
The database is
created using the appropriate software as required by the project.
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| 1.2.2 |
Appropriate features and the feature geometry appropriate to
the project are chosen.
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| 1.2.3 |
Attributes and field types appropriate to the project are
chosen.
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| 1.2.4 |
The coordinate system, datum, and map projections for GIS
data set are chosen and defined.
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| 1.2.5 |
Table relationships, cardinality (joins vs. links), primary
key, and relationship classes are accurate according to the
requirements of the project.
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| 1.2.6 |
The attribute values and fields of the feature are reviewed
and tested according to the requirements of the project.
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| 1.2.7 |
Metadata is progressively documented and updated as the
database and project develop.
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Develop (and document with metadata ) database(s) including:
defining geometry, attributes, relationships, topology rules, feature
behaviors such as types and domains, incorporating data schema models.
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Personal computer
Geographic information systems software
Servers
Global positioning systems
Database software
Word processing software
Spreadsheet software
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| KA1.3 |
Determine data compatibility (projection), perform data
conversion, populate feature attributes. |
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Number
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Criteria
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| 1.3.1 |
Data is classified and listed by data formats.
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| 1.3.2 |
All the coordinate systems, datum, and map projections in
the data set are identified and listed.
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| 1.3.3 |
Any incompatible fields between data sets are identified and
listed.
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| 1.3.4 |
The compatibility of the file types, coordinate systems,
datum, and map projections, and field attributes between data sets are
summarized.
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| 1.3.5 |
Compatibility
of available data to project requirements is compared and contrasted.
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| 1.3.6 |
Appropriate
projection for data and for the project is identified and defined.
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| 1.3.7 |
Data
for a project uses appropriate scale, is complete, and current.
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| 1.3.8 |
Method
for data conversion from one datum or projection or coordinate system
is validated.
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GIS principles
Cartographic principles
Photogrammetry
Database skills
General geography
Cartographic design skills
Computer skills
Keyboarding skills |
Personal Computer
Geographic information systems software
Database software
Spreadsheet software |
| KA1.4 |
Perform both tablet, COGO, and on-screen digitization with
attribution. |
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Number
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Criteria
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| 1.4.1 |
Data is created and conforms to digitizing and
topology rules set forth during the creation of the database, such as
rules of topology for the project.
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GIS principles
Land surveying
Reading engineering-grade plans
Database skills
General geography
Computer skills
Keyboarding skills |
Scanners
Personal Computer
Global positioning systems
Geographic information systems software
Auto CAD
Vector-based drawing programs
Database software
Image display and manipulation software |
| KA1.5 |
Collect field attribute and location data via GPS (Tablet
PC/PDA). |
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Number
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Criteria
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| 1.5.1 |
Tools that are appropriate to the project are selected based
on accuracy requirements.
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| 1.5.2 |
A GPS is set up with coordinate systems, datum, and
projection information appropriate for the region of a project.
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| 1.5.3 |
The data captured is accurate.
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| 1.5.4 |
Satellite parameters such as strength and potential accuracy
are documented in field notes.
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| 1.5.5 |
Possible errors that
could be introduced when collecting GPS data are avoided or are
identified and removed.
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GIS principles
General geography
Computer skills |
Personal Computer
Global positioning systems
Geographic information systems software |
| KA1.6 |
Geocode data. |
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Number
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Criteria
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| 1.6.1 |
The number of addresses in the table and the number of
points on the map are acceptable based on the needs of the project.
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| 1.6.2 |
Data schema in geocoding table match the street attribute
table provided.
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| 1.6.3 |
Data is clean and an appropriate address locator and street
map data set is used.
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| 1.6.4 |
Parameters for acceptance of a rematch location are
appropriately modified as required by the project.
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GIS principles
Database skills
General geography
Computer skills
Keyboarding skills |
Personal Computer
Geographic information systems software
Database software |
| KA1.7 |
Perform quality control (QC) and quality assurance (QA) of
GIS databases. |
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Number
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Criteria
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| 1.7.1 |
Objects on map are within tolerance specified by national
and/or local or project specific mapping standards of accuracy.
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GIS principles
Data exchange procedures
Database skills
General geography
Computer skills
Keyboarding skills |
Plotters
Personal Computer
Geographic information systems software
Database software
Spreadsheet software |