6 : Distribution Information

1{Digital_Form}n ] +

Format_Version_Date] +

(Format_Specification) ) +

Offline_Option] }n

Dialup_Instructions]

6.4.1 Non-digital Form -- the description of options for obtaining the data set on non-computer- compatible media.

Type: text

Domain: free text

Short Name: nondig

6.4.2 Digital Form -- the description of options for obtaining the data set on computer-compatible media.

Type: compound

Short Name: digform

6.4.2.1 Digital Transfer Information - description of the form of the data to be distributed.

Type: compound

Short Name: digtinfo

6.4.2.1.1 Format Name -- the name of the data transfer format.

Type: text

Domain: domain values from the table below; free text

Short Name: formname

Domain

Value Definition

"ARCE" ARC/INFO Export format

"ARCG" ARC/INFO Generate format

"ASCII" ASCII file, formatted for text attributes, declared format

"BIL" Imagery, band interleaved by line

"BIP" Imagery, band interleaved by pixel

"BSQ" Imagery, band interleaved sequential

"CDF" Common Data Format

"CFF" Cartographic Feature File (U.S. Forest Service)

"COORD" User-created coordinate file, declared format

"DEM" Digital Elevation Model format (U.S. Geological

Survey)

"DFAD" Digital Feature Analysis Data (National Imagery and Mapping Agency)

"DGN" Microstation format (Intergraph Corporation)

"DIGEST" Digital Geographic Information Exchange Standard

"DLG" Digital Line Graph (U.S. Geological Survey)

"DTED" Digital Terrain Elevation Data (MIL-D-89020)

"DWG" AutoCAD Drawing format

"DX90" Data Exchange '90

"DXF" AutoCAD Drawing Exchange Format

"ERDAS" ERDAS image files (ERDAS Corporation)

"GRASS" Geographic Resources Analysis Support System

"HDF" Hierarchical Data Format

"IGDS" Interactive Graphic Design System format (Intergraph Corporation)

"IGES" Initial Graphics Exchange Standard

"MOSS" Multiple Overlay Statistical System export file

"netCDF" network Common Data Format

"NITF" National Imagery Transfer Format

"RPF" Raster Product Format (National Imagery and Mapping Agency)

"RVC" Raster Vector Converted format (MicroImages)

"RVF" Raster Vector Format (MicroImages)

"SDTS" Spatial Data Transfer Standard (Federal Information Processing Standard 173)

"SIF" Standard Interchange Format (DOD Project 2851)

"SLF" Standard Linear Format (National Imagery and Mapping Agency)

"TIFF" Tagged Image File Format

"TGRLN" Topologically Integrated Geographic Encoding and Referencing (TIGER) Line format (Bureau of the Census)

"VPF" Vector Product Format (National Imagery and Mapping Agency)

6.4.2.1.2 Format Version Number -- version number of the format.

Type: text

Domain: free text

Short Name: formvern

6.4.2.1.3 Format Version Date -- date of the version of the format.

Type: date

Domain: free date

Short Name: formverd

6.4.2.1.4 Format Specification -- name of a subset, profile, or product specification of the format.

Type: text

Domain: free text

Short Name: formspec

6.4.2.1.5 Format Information Content -- description of the content of the data encoded in a format.

Type: text

Domain: free text

Short Name: formcont

6.4.2.1.6 File Decompression Technique -- recommendations of algorithms or processes (including means of obtaining these algorithms or processes) that can be applied to read or expand data sets to which data compression techniques have been applied.

Type: text

Domain: "No compression applied", free text

Short Name: filedec

6.4.2.1.7 Transfer Size -- the size, or estimated size, of the transferred data set in megabytes.

Type: real

Domain: Transfer Size > 0.0

Short Name: transize

6.4.2.2 Digital Transfer Option -- the means and media by which a data set is obtained from the distributor.

Type: compound

Short Name: digtopt

6.4.2.2.1 Online Option -- information required to directly obtain the data set electronically.

Type: compound

Short Name: onlinopt

6.4.2.2.1.1 Computer Contact Information -- instructions for establishing communications with the distribution computer.

Type: compound

Short Name: computer

6.4.2.2.1.1.1 Network Address -- the electronic address from which the data set can be obtained from the distribution computer.

Type: compound

Short Name: networka

6.4.2.2.1.1.1.1 Network Resource Name -- the name of the file or service from which the data set can be obtained.

Type: text

Domain: free text

Short Name: networkr

6.4.2.2.1.1.2 Dialup Instructions -- information required to access the distribution computer remotely through telephone lines.

Type: compound

Short Name: dialinst

6.4.2.2.1.1.2.1 Lowest BPS -- lowest or only speed for the connection's communication, expressed in bits per second.

Type: integer

Domain: Lowest BPS >= 110

Short Name: lowbps

6.4.2.2.1.1.2.2 Highest BPS -- highest speed for the connection's communication, expressed in bits per second. Used in cases when a range of rates are provided.

Type: integer

Domain: Highest BPS > Lowest BPS

Short Name: highbps

6.4.2.2.1.1.2.3 Number DataBits -- number of data bits in each character exchanged in the communication.

Type: integer

Domain: 7 <= Number DataBits <= 8

Short Name: numdata

6.4.2.2.1.1.2.4 Number StopBits -- number of stop bits in each character exchanged in the communication.

Type: integer

Domain: 1 <= Number StopBits <= 2

Short Name: numstop

6.4.2.2.1.1.2.5 Parity -- parity error checking used in each character exchanged in the communication.

Type: text

Domain: "None" "Odd" "Even" "Mark" "Space"

Short Name: parity

6.4.2.2.1.1.2.6 Compression Support -- data compression available through the modem service to speed data transfer.

Type: text

Domain: "V.32" "V.32bis" "V.42" "V.42bis" free text

Short Name: compress

6.4.2.2.1.1.2.7 Dialup Telephone -- the telephone number of the distribution computer.

Type: text

Domain: free text

Short Name: dialtel

6.4.2.2.1.1.2.8 Dialup File Name -- the name of a file containing the data set on the distribution computer.

Type: text

Domain: free text

Short Name: dialfile

6.4.2.2.1.2 Access Instructions" -- instructions on the steps required to access the data set.

Type: text

Domain: free text

Short Name: accinstr

6.4.2.2.1.3 Online Computer and Operating System -- the brand of distribution computer and its operating system.

Type: text

Domain: free text

Short Name: oncomp

6.4.2.2.2 Offline Option -- information about media-specific options for receiving the data set.

Type: compound

Short Name: offoptn

6.4.2.2.2.1 Offline Media -- name of the media on which the data set can be received.

Type: text

Domain: "CD-ROM" "3-1/2 inch floppy disk" "5-1/4 inch floppy disk" "9-track tape" "4 mm cartridge tape" "8 mm cartridge tape" "1/4-inch cartridge tape" free text

Short Name: offmedia

6.4.2.2.2.2 Recording Capacity -- the density of information to which data are written. Used in cases where different recording capacities are possible.

Type: compound

Short Name: reccap

6.4.2.2.2.2.1 Recording Density -- the density in which the data set can be recorded.

Type: real

Domain: Recording Density > 0.0

Short Name: recden

6.4.2.2.2.2.2 Recording Density Units -- the units of measure for the recording density.

Type: text

Domain: free text

Short Name: recdenu

6.4.2.2.2.3 Recording Format -- the options available or method used to write the data set to the medium.

Type: text

Domain: "cpio" "tar" "High Sierra" "ISO 9660" "ISO 9660 with Rock Ridge extensions" "ISO 9660 with Apple HFS extensions" free text

Short Name: recfmt

6.4.2.2.2.4 Compatibility Information --- description of other limitations or requirements for using the medium.

Type: text

Domain: free text

Short Name: compat

6.4.3 Fees -- the fees and terms for retrieving the data set.

Type: text

Domain: free text

Short Name: fees

6.4.4 Ordering Instructions -- general instructions and advice about, and special terms and services provided for, the data set by the distributor.

Type: text

Domain: free text

Short Name: ordering

6.4.5 Turnaround -- typical turnaround time for the filling of an order.

Type: text

Domain: free text

Short Name: turnarnd

Short Name: custom