Process description: August 20, 2009
IDAHO BUREAU OF LAND MANAGEMENT FORM ID-9167
GEOSPATIAL DATA QUALITY ASSURANCE /QUALITY CONTROL
AUTHORIZATION PAGE
DATA VALIDATION DETAILS
Because the ID-9167 form needs to stay digital and ultimately copied into metadata, the checklist selections should be made by typing an 'x' in the space provided to indicate selection (i.e. "_x_") and comments should be typed directly into the document.
1. DATA STANDARD ASSESSMENT
Determine if the dataset should follow an existing current Data Standard. If there is one, then all the following checks must be done in the context of the Data Standard (e.g. fields, attributes, etc.).
For more information, discuss with the State Office GIS Data Standard lead, refer to Q:\pub\gis\miscsupport\Standards\Idaho_BLM\Current\Resourcedata (for Idaho BLM standards), or to http://web.blm.gov/data_mgt/standards/index.htm (for National BLM standards).
1.1. Is there a Data Standard
__ Yes - Specify which Data Standard it is (i.e. Idaho BLM, National BLM, Interagency, DOI, etc.):
__ The dataset conforms to the Data Standard
__ The dataset does NOT conform to the Data Standard (document this below)
_X_ No, there is no Data Standard
__ Unknown
Remarks related to Section 1, Data Standard Assessment (type in here):
SPATIAL ACCURACY ASSESSMENT
1.2. Coordinate System (projection, datum, units, etc.)
_X_ No Errors, the coordinate system is present and defined according to current standards
__ Errors (document at the end of section 2)
1.3. Overlay and visually inspect the dataset with another reference dataset of known spatial accuracy (such as NAIP, DRG, GCDB, GPS data, etc.).
1.3.1. Specify the reference dataset used here: GCDB
2.2.2 Are all expected features present (e.g. is the data set complete)?
_X_Yes __No (document at the end of section 2) ___Unknown
2.2.3 Does the feature geometry match similar geometry in the reference dataset (e.g. no datum problems, not shifted or skewed)?
_X_ Yes __No (document at the end of section 2) ___ Unknown
2.2.4 Do all features fall within the expected area of interest (e.g. no outliers way off in another state, no 0, 0 coordinates, etc.)?
_X_Yes __No (document at the end of section 2) ___ Unknown
2.2.5 Do slivers exist for polygon data?
_X_No __Yes (document at the end of section 2) ___ Unknown
2.3 Check topological relationships. (All issues with topology should be documented in the Logical Consistency report part of the Metadata).
For geodatabase feature classes or shapefiles:
2.3.1 Run the Check Geometry tool in ArcToolbox, fixing errors where possible. (Make a backup before using the Repair Geometry tool and verify changes occur as you would expect them in the target data. Check Geometry is not available for SDE)
__ No Errors __ Errors (document at the end of section 2) __X_ Unknown
2.3.2 Explode multi-part features into single-part features unless there are reasons to maintain them (polygons are the usual concern).
_X_Done __Not Done (document at the end of section 2) ___Unknown
For geodatabase feature classes, validate any Topology feature classes that are currently set up for the dataset. If no Topology feature classes exist, temporary ones should be created to check for the following conditions.
2.3.3 Polygon gaps or overlaps
__ No Errors __ Errors (document at the end of section 2) _X__ Unknown
2.3.4 Line dangles (undershoots/overshoots) and nodes at all intersections
__ No Errors __ Errors (document at the end of section 2_X__ Unknown
2.3.5 Coincident relationships are maintained within the feature dataset, if applicable (i.e. line feature class is coincident with boundaries of polygon feature class).
__ No Errors __ Errors (document at the end of section 2) _X__ Unknown
For ARC/INFO Coverages:
2.3.6 Use the DESCRIBE, INTERSECTERR, NODEERRORS, and LABELERRORS commands to evaluate arc intersections and identify node and label errors.
__ No Errors __ Errors (document at the end of section 2) ___ Unknown
2.3.7 Check for interior (doughnut) polygons and label as exceptions with a proper attribute phrase (i.e. OUT, N/A, etc.)
__ No Errors __ Errors (document at the end of section 2) ___ Unknown
Remarks related to Section 2, Spatial Accuracy Assessment (type in here):
ATTRIBUTE ACCURACY ASSESSMENT
ATTRIBUTE VALUE CHECKS: Use frequency tools on the attribute table, or sort fields as needed, to answer the following questions.
3.1 Are the field length and data type appropriate for the expected range of values?
(see standards for modifications)
_X_Yes __ No (document at the end of section 3) __Unknown
3.2 Are there spelling errors?
_X_ No __ Yes (document at the end of section 3) __ Unknown
3.3 Is there consistent and correct case usage (capitalization)?
_X_ Yes __ No (document at the end of section 3) ___ Unknown
3.4 Are there any missing, incomplete, or invalid values ?
(Verify that domains and subtypes are current and complete according to standards)
_X_ No __ Yes (document in metadata) ___ Unknown
If yes, populate these attributes with an appropriate and consistent value such as NULL, OUT, or N/A to confirm that these values weren't forgotten. Be sure to refer to any current Data Standard for the correct phrase to use.
3.5 If subtypes and domains exist, validate attribute values using the Validate Features Tool under Editing options.
__ No Errors __ Errors (document in metadata) __Unknown
3.6 Are there any duplicate user-defined Unique IDs?
__ No __ Yes (document in metadata) ___ Unknown
3.7 Recalculate any fields that are affected by geometry edits or are dependent on other fields, such as acres, miles or other geometry dependant values (be sure to use Idaho BLM standards, if applicable).
Done _X_ Not Done__
3.8 Recalculate any fields that should be updated based on relationships, dependencies, or concatenations with other fields.
__ Done __ Not done (document this in metadata)
Remarks related to Section 3, Attribute Accuracy Assessment (type in here):
METADATA REQUIREMENTS
4.1 Ensure that metadata exists and is updated in ArcCatalog.
Done _X_ Not Done__
(Use the "Create/Update metadata" button for the dataset in ArcCatalog to ensure an FGDC-compliant structure and update the file associated with the dataset .
4.2 Metadata has a current thumbnail snapshot of the data
Done _X_ Not Done__
4.3 Abstract: A basic overview and summary of the dataset.
Done _X_ Not Done__
4.4 Purpose: The intended use of the dataset.
Done _X_ Not Done__
4.5 Supplemental Information: Use this area to identify: Data Steward endorsement, including the title of the Data Steward (i.e. Wildlife Biologist) and the date that ID-9167 form was signed. (This is added to the Supplemental Information after the ID-9167 form is signed.)
Done _X_ Not Done__
Identify Major issues: Information about the data that the user needs to know immediately. This can include but isn't limited to any restrictions, problems, assumptions, incompleteness, time sensitivity, etc.
Done _X_ Not Done__
4.6 Access Constraints: Is this dataset public or sensitive? Include specific legal restrictions for accessing the data and proper disclaimers. Refer to the Data Sensitivity Assessment portion of the ID-9167 Authorization Page. (This is updated after the ID- 9167 form is signed.)
Done _X_ Not Done__
4.7 Use Constraints: Include the recommended scale of use, the Idaho BLM standard disclaimer, and any additional restrictions of using the data once access is granted (refer to the Data Sensitivity Assessment portion of the ID-9167 Authorization Page). Recommended scale of use is equivalent to the worst (smallest) source scale. However, in
some cases the recommended scale of use could be smaller than the source scale.
The following Idaho BLM standard disclaimer statement(s) is applied to BLM data, as appropriate, depending on the BLM Records Access Category and the data verification status for the data involved:
For Public records (external distribution) and those discretionary/enhanced records (electronic products available for online viewing and/or hardcopy output available to the public) the following disclaimer should be used:
"No warranty is made by the Bureau of Land Management. The accuracy, reliability, or completeness of these data for individual use or aggregate use with other data is not guaranteed."
For Internal or Sensitive records, only accessible by internal staff or for review or display with no intended distribution, or containing unverified data use:
"For internal use only. Review and/or display copy - not for distribution. No warranty is made by the Bureau of Land Management as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data. [Date]"
Done _X_ Not Done__
4.8 Contact Information: Data Steward position /title, work address, and work phone number. Do NOT include the Data Steward's first or last name.
Done _X_ Not Done__
4.9 Citation Title. Write a title to describe the data, and refrain from using the filename, abbreviations, etc. Include the relative scale if known and geographic extent of the data (e.g. "statewide", "Shoshone Field Office", "Boise District").
Done _X_ Not Done__
4.10 Linkage. If the data is going to be distributed to the public via the internet at Inside Idaho, type in http://www.insideidaho.org. Otherwise, type "None."
Done _X_ Not Done__
4.11 Time Period. Fill in Currentness Reference and Calendar Date.
Done _X_ Not Done__
4.12 Status. Fill in Progress and Update Frequency.
Done _X_ Not Done__
4.13 Logical Consistency Report: Explain the basic topology rules that were enforced on this dataset in the Spatial Accuracy portion of this checklist, and any other methods used to determine the logical consistency.
Done _X_ Not Done__
4.14 Positional/Horizontal Accuracy Report: Summarize the process used in the Spatial Accuracy portion of this checklist, or any other methods used to determine the horizontal accuracy. Please note that the accuracies in feet for GPS data from software that automatically provides these values (such as Pathfinder Office) should be at the two- degree root mean square error (2DRMS), which is at the 95% confidence level.
Done _X_ Not Done__
4.15 Process Step: There should be a process step added any time editing is done to the dataset. Be detailed and specific about the edits made. Be sure to indicate Process Contact information using position titles of the editors (not their names). Also include as a Process Step the digital text from this entire ID-9167 form.
Done _X_ Not Done__
4.16 Spatial Reference: Confirm that the current coordinate system of the dataset is filled out here. This will self-populate after clicking the "Create/Update metadata" button.
Done _X_ Not Done__
4.17 Entity Attribute. Make sure that every field and coded value used in the attribute table is defined or attached in the metadata.
Done _X_ Not Done__
4.18 Distribution Liability. Reiterate any Use Constraints and sensitivity restrictions for this dataset.
Done _X_ Not Done__
4.19 Metadata Reference. Make sure that dates and contacts (using just position titles) are complete and current.
Done _X_ Not Done__
4.20 Copy the entire digital text of this completed ID-9167 form and paste it into a new Process Step in the metadata.
Done _X_ Not Done__
4.21 Fill in any last details in the metadata, such as stating in the Supplemental Information the date on which the Data Steward approved this edition of the dataset and updating the Access and Use Constraints based on the Sensitivity Assessment deemed by the Data Steward.
Done _X_ Not Done__
Remarks related to Section 4, Metadata Requirements (type in here):