DCGIS_IndSchPt

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Office of the Chief Technology Officer
Publication_Date: 20101227
Title: DCGIS_IndSchPt
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher: DC GIS
Online_Linkage:
\\ojsfile1\global\GIS\SPATIAL_DATA\DataCatalog\DCGIS_IndSchPt.shp
Online_Linkage:
\\ojsfile1\global\GIS\SPATIAL_DATA\DataCatalog\DCGIS_IndSchPt.shp
Larger_Work_Citation:
Citation_Information:
Originator: DC GIS
Title: DC Geographic Information System
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
Independent School locations. The dataset contains locations and attributes of Independent Schools, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies.
A publication identified Independent Schools and DC GIS staff geo-processed the data.
All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.
Purpose:
This data is used for the planning and management of Washington, D.C. by local government agencies.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20101227
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.094592
East_Bounding_Coordinate: -76.928825
North_Bounding_Coordinate: 38.984794
South_Bounding_Coordinate: 38.824995
Data_Set_G-Polygon:
Data_Set_G-Polygon_Outer_G-Ring:
G-Ring_Point:
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: education
Theme_Keyword: Religion
Theme_Keyword: Schools
Theme_Keyword: Independent Schools
Theme_Keyword: Private Schools
Theme_Keyword: society
Place:
Place_Keyword: Washington, D.C.
Place_Keyword: District of Columbia
Place_Keyword: DC
Place_Keyword: DC GIS
Place_Keyword: DCGIS
Use_Constraints:
Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Data_Set_Credit:
"Independent School Guide for Washington, DC and the Surrounding Area" publication
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.
Logical_Consistency_Report: In process of validation by source and/or responsible agency.
Completeness_Report:
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: In process of validation by source and/or responsible agency.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: N/A
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Jill Zacharie
Publication_Date: 2001
Title:
Independent School Guide for Washington, DC and the Surrounding Area
Edition: 12th
Publication_Information:
Publication_Place: Alexandria, VA
Publisher: Left Hill Press
Type_of_Source_Media: publication
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 08/01/2002
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation:
Independent School Guide for Washington, DC and the Surrounding Area
Source_Contribution: locations and attributes
Source_Information:
Source_Citation:
Citation_Information:
Originator: Alexandria Mapping Company
Publication_Date: 2002
Title: Metro Washington DC
Edition: 34th
Publication_Information:
Publication_Place: Alexandria, VA
Publisher: ADC
Online_Linkage: <http://www.adcmap.com>
Source_Scale_Denominator: 24000
Type_of_Source_Media: atlas
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 8/1/2002
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: ADC - Washington DC Metro
Source_Contribution: location
Process_Step:
Process_Description:
Data Collection:
Through the application's functionality and usability requirements, OCTO GIS staff compose a list of data layers needed for the application. From this, staff determine the appropriate source and location for each layer, and assess the effort needed to get it.
Some layers, already part of the DC Atlas, are incorporated into the data store. For DC agency data, agency liaisons ask DC personnel about data availability and acquisition. For third-party data, OCTO-GIS evaluates options and either finds alternatives, purchases, or licenses the data. In some cases, staff create data from existing sources and then add required attribution.
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
Data Preparation:
After the collection, the data team prepares the data for qa/qc and inclusion in the data store. This step involves: 1.) configuring the datasets into a common form; 2.) geocoding tabular data using a common address base; 3.) generating or converting paper documents into digital format; 4.) populating required fields; and 5.) resolving data duplication and conflicts.
For geocoding, staff use a derivative of the Office of Tax and Revenue (OTR) owner-point database and the District Department of Transportation's (DDOT) street inventory system (SIS) street centerline file as the address base. Through automated procedures on the owner-point derivative file, personnel clean and standardize the irregular premise address information into street number, name, type, and quadrant fields. Also, staff use the merged SIS file containing the five centerlines classifications (street, alley, drive, service road, and ramp).
First, staff match tabular data to the standardized owner-points. Then, the rest are matched to the street centerline file. After this, staff compose a list of the unmatched records needing further research. Since not all of the records geocode, staff note the final matching figures (number of hits, rejects, and the total).
For web links, team members check the validity of existing links and find matching web sites that directly represent the feature. Staff use several web search engines to find appropriate web links. DC government sites are primarily used, when available.
To eliminate data redundancy, staff identify possible conflicting layers and duplicate features. In some cases, staff pick the best source. In others, the attributes in the multiple layers are consolidated. Sometimes, staff map the conflicting layers and investigate feature clusters as areas of potential duplication.
Where applicable, team members move points to the center of the corresponding buildings. Staff then select the building footprints and assign the appropriate GIS_ID value that links the points with the appropriate building polygon(s).
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
Data QA/QC
After data preparation, the data team performs qa/qc. Various processes check the following parameters: 1.) spatial and attribute accuracy; 2.) data usability; 3.) data dictionary adherence; 4.) specialized metrics, such as connectivity and directionality; and 5.) data load success. These checks are, as follows:
Visual - staff perform a structured visual check of the data, using on-screen, plotting, and customized routines, and, at times, comparing it to the source documents.
Edge-matching - For grided datasets, staff review the spatial capture, connectivity, and attribution of data across tile boundaries, where applicable.
Automated - Staff compare the data to documented standards and source files through automated procedures and reports.
Specialized - Staff review more specific data parameters, such as directionality, connectivity , and topology.
Edit Verification - Staff ensure that previous errors are fixed to specifications. ? Field Verification - Occasionally, through field work, team members compare the GIS data with the real world.
Data Loading - Staff evaluate the success and evaluate the process of loading raw data into a structured database.
Since most of the data use addresses as the spatial reference, staff compare the data against base layers (buildings, roads, street centerlines, owner-points, parks, and orthophotography) and move features where needed.
In some cases, OCTO GIS personnel produce maps and reports for source agency review. Through an iterative process, staff modify and enhance the layer to agency specifications. For some datasets, the agency endorses the final product for data load and publication.
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
Final Data Preparation:
For final preparation, staff ensure all of the needed items are present (unneeded items are deleted), the metadata is complete and current, the shapefile is in the proper projection, and a spatial index exists. If not already done, a GIS_ID (unique id for features in the layer) is computed with automated tools.
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
Data Load:
After final preparation, OCTO GIS staff load the data into the application's test database, where SDE handles the spatial data and ORACLE manages the attribute information.
First, staff add primary key and name fields to the layer. Second, personnel register the layer into the appropriate tables and establish the unique feature-ids (the link between the spatial object and its attributes) specific to that layer. Then, staff populate feature, search, address, web url, contact, data source, and other tables, where applicable. For point layers, team members calculate each feature's geographic extent and populate the features table. Lastly, each layer is intersected with the base geography (2002 Advisory Neighborhood Commission areas, 2002 wards, zip codes, neighborhoods, and neighborhood clusters) to populate the "what's-within" tables for the web reports. Views are refreshed when needed.
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
Data Load QA/QC
OCTO GIS performs spatial checks comparing the test SDE database with source files to check for completeness, spatial integrity, and proper attribution. First, staff compare the test database contents with documented standards. Then, team members check the geography and attribution, as well as compare dataset parameters between both layers.
The data team performs attribute checks on the ORACLE database to ensure the existence and validity of views. Again, staff compare the database contents with documented standards. For critical views, personnel check the view structures and data against source files and documentation.
Process_Date: 5/31/03
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Process_Step:
Process_Description:
DC GIS staff, based on input from the DHS HFLD data program, performed the following updates:
British School of Washington - Relocated to 2100 Wisconsin Ave NW Kingsbury Day School - Relocated to 5000 14th Street NW The Owl School - All three schools merged onto 1920 G Street NW Ideal Alternative School - Removed - no working phone or website Oakcrest School - Removed - relocated to Mclean, VA Rock Creek International School - Removed - went out of business
Process_Date: 20111227
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: OCTO
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\temp\IndSchPt.xml

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 62

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 1900
Lambert_Conformal_Conic:
Standard_Parallel: 38.300000
Standard_Parallel: 39.450000
Longitude_of_Central_Meridian: -77.000000
Latitude_of_Projection_Origin: 37.666667
False_Easting: 400000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: DCGIS_IndSchPt
Attribute:
Attribute_Label: ADDRESS
Attribute_Definition: Independent School Address
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: GIS_ID
Attribute_Definition: OCTO GIS sequential identifier
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: ID
Attribute_Definition: Unique ID
Attribute:
Attribute_Label: NAME
Attribute_Definition: Independent School Name
Attribute:
Attribute_Label: ZIP
Attribute_Definition: Independent School Zip code
Attribute:
Attribute_Label: TELEPHONE
Attribute_Definition: Independent School Telephone Number
Attribute:
Attribute_Label: WEB_URL
Attribute_Definition: Independent School Web Link Url

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Resource_Description: Downloadable Data
Distribution_Liability:
Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.002
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Ordering_Instructions:
Most DC GIS datasets can be downloaded from "<http://dcgis.dc.gov>" on the data center page. Orders can also be made by contacting OCTO GIS at "dcgis@dc.gov", especially for datasets not available for download.

Metadata_Reference_Information:
Metadata_Date: 20110210
Metadata_Review_Date: 01/07/04
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5 pm
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Thu Feb 10 14:17:01 2011