0xx

Contents   Fixed field   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx

007  Physical Description Fixed Field (Electronic Resource) (R)

       

Input Standards

Required if applicable/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards 
‡a Category of material  (007/00)  (NR) Mandatory/Mandatory
‡b Specific material designation  (007/01)  (NR) Mandatory/Mandatory
‡d Color  (007/03)  (NR) Mandatory/Mandatory
‡e Dimensions  (007/04)  (NR) Required if applicable/Required if applicable
‡f Sound  (007/05)  (NR) Required if applicable/Required if applicable
‡g Image bit depth  (007/06–08)  (NR) Optional/Optional
‡h File formats  (007/09)  (NR) Optional/Optional
‡i Quality assurance target(s)  (007/10)  (NR) Optional/Optional
‡j Antecedent/Source  (007/11)  (NR) Optional/Optional
‡k Level of compression  (007/12)  (NR) Optional/Optional
‡l Reformatting quality  (007/13)  (NR) Optional/Optional




Definition

The physical characteristics of an electronic resource.
All formats 

Use for items intended to be accessed, processed, or executed by a computer.

 

007 is valid in all formats so you can code for the physical characteristics of the parts of an item such as accompanying material.

Examples

 
 
007     c ‡b j ‡d c ‡e a
[A computer program on 3 1/2 inch diskette, which supports a color video interface but no sound]
007     c ‡b o ‡d c ‡e g ‡f a
[Interactive software and data on a 4 3/4 inch optical disc (CD-ROM) intended to be viewed in color with sound]
007     c ‡b z ‡d n ‡e z ‡f a
[A Playaway audio device]
007     c ‡b r ‡d c ‡e n ‡f a
[A streaming video file in color with sound]
007     c ‡b r ‡d n ‡e n ‡f a
[A streaming audio file]
007     c ‡b r ‡d b ‡e n
[A textual electronic journal available remotely, formatted as ASCII text]
007     c ‡b u ‡d g ‡e n ‡g 008 ‡h a ‡i p ‡j a ‡k b ‡l p
[A digitized version of an original, reformatted for preservation purposes. The electronic resource is comprised of grayscale TIFF images only (no sound) which were scanned at a bit depth of 8 bits per pixel, including quality control targets, and is compressed using lossless compression. Because this file was created for preservation purposes, the medium on which the file is stored will vary as it is refreshed and migrated to new systems to remain accessible.]
007     c ‡b o ‡d n ‡e g ‡g nnn ‡h a ‡i a ‡j d ‡k d ‡l a
[An access version of an audio file which had been digitally reformatted from the 2nd generation analog tape and is stored on a CD. Quality assurance target tones are not present on this mpeg-compressed access copy. Because it is not an image or video file, color and bit depth aspects are not applicable.]
007     c ‡b u ‡d g ‡e n ‡g 008 ‡h a ‡i p ‡j a ‡k b ‡l r
[A digitized version of an original, reformatted (and replaced) during preservation. The electronic resource is comprised of grayscale TIFF images only (no sound) which were scanned at a bit depth of 8 bits per pixel, including quality control targets and is compressed using lossless compression. Because this file was created to replace the original volumes, the medium on which the file is stored will vary as it is refreshed and migrated to new systems to remain accessible.]
007     c ‡b o ‡d c ‡e g ‡g nnn ‡h m ‡i u
[A Photo CD with color still images in several file formats]

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

Subfields

 
‡a Category of material   A one-character alphabetic code that indicates the category of material to which the item belongs is an electronic resource.
c Electronic resource. The item is an electronic resource (e.g, programs, data files, image files, digitized audio and video tapes, etc.), which usually consist of digitized machine-readable data, program code, etc. intended to be accessed, processed, or executed by a computer.
‡b Specific material designation   A one-character alphabetic code that describes the special class of material (usually the class of physical object) to which an item belongs (e.g., a magnetic disk).
a Tape cartridge. The item is a tape cartridge, a removable module containing a secondary storage medium such as magnetic tape or magnetic disks.
b Chip cartridge. The item is a chip cartridge, a removable module containing a miniaturized electronic circuit, mass-produced on a tiny chip or wafer of silicon, designed to provide additional processing or memory capacity to a computer.
c Computer optical disc cartridge. The item is a computer optical disc cartridge, a removable module containing one or more nonmagnetic discs used to store digital data.
d Computer disc, type unspecified. A disc whose type is not specified.
e Computer disc cartridge, type unspecified. A disc cartridge whose type is not specified.
f Tape cassette. The item is a tape cassette, a removable module, somewhat like an audio cassette, that contains magnetic tape that can be written on and read from or by a tape drive.
h Tape reel. The item is a tape reel, a removable spool containing magnetic tape that can be written to and read from or by a tape drive.
j Magnetic disk. The item is a magnetic disk, a digital information storage medium usually consisting of a thin Mylar disk coated with a magnetic material that permits the recording of data. Magnetic disks come in various sizes. They are also known as computer diskettes, floppy disks or diskettes, or stiffy disks.
k Computer card. The item is a computer card, a card containing digitally encoded data designed for use with a computer.
m Magneto-optical disc. The item is a magneto-optical disc, an erasable or semi-erasable storage medium, similar to a CD-ROM disc, capable of storing data at a very high density. The disc is written to and read from using a laser beam used to heat the recording surface to a point at which regions of the surface of the disc become magnetically aligned to store bits of data.
o Optical disc. The item is an optical disc, a medium that uses a series of laser-burned micron-sized pits on a special recording surface to store data. Recorded data is read optically. These discs are usually read-only. Optical disc formats include CD-A, CD-I, CD-R, CD-ROM, CD-ROM-XA, DVD-ROM, and Photo CD.
r Remote. The item is an electronic resource that is accessed, processed, executed, etc., remotely. In this case, the electronic resource is used via input/output devices connected electronically to a computer. Frequently, this involves a computer network connection. The specific material designation of the remotely accessed physical item (e.g., a CD-ROM accessed remotely through a network) is not specified when code r is used.
u Unspecified. The specific material designation for the electronic resource is not specified (e.g., it may be an electronic resource that changes its medium over time).
z Other. None of the other codes is appropriate.
‡d Color   The color characteristics of an electronic resource.
a One color. The images from the electronic resource are intended to be produced in a single color other than black (e.g., pink and white, brown and white). Use code b for images that are black-and-white.
b Black-and-white. The images from the electronic resource are encoded to be produced in black and white. Use code b for ASCII files, which do not include color.
c Multicolored. The image is printed or executed in more than one color. Use code c for color photographic processes.
g Gray scale. The image is produced in degrees of dark to light from black to gray to white.
m Mixed. The work or collection is a combination of one-color, black-and-white, multicolored, hand colored, and/or other images.
n Not applicable. The color is not applicable to the electronic resource, usually because it does not involve anything visual (e.g., digitally encoded audio data).
u Unknown. The color characteristics of the item are not known.
z Other. None of the other codes is appropriate.
‡e Dimensions   The dimensions of the medium used to encode the electronic resource. Enter only the most common dimensions. In many cases, the dimensions apply to the container in which the magnetic or optical medium is encased. Use the dimensions given in the description of the item. If no code exactly matches the dimensions of the medium (or container), use code z.
a 3 1/2 in. The diameter of the medium is 3 1/2 inches which usually is that of a magnetic disk.
e 12 in. The diameter of the medium is 12 inches which usually is that of an optical or magneto-optical disc.
g 4 3/4 in. or 12 cm. The diameter of the medium is 4 3/4 inches (or 12 cm) which usually is that of an optical or magneto-optical disc.
i 1 1/8 × 2 3/8 in. The dimensions of the container are 1 1/8 x 2 3/8 inches which usually are those of a container used to hold chip cartridges.
j 3 7/8 × 2 1/2 in. The dimensions of the container are 3 7/8 x 2 1/2 inches which usually are those of a container used to hold optical disc cartridges.
n Not applicable. Physical dimensions are not applicable to the electronic resource. Use for remote electronic resources and electronic resources whose specific medium varies (code u in subfield ‡b).
o 5 1/4 in. The diameter of the medium is 5 1/4 inches which usually is that of a magnetic disk.
u Unknown. The dimensions of the medium for the electronic resource are not known.
v 8 in. The diameter of the medium is 8 inches which usually is that of a magnetic disk or optical disc.
z Other. None of the other codes is appropriate.
‡f Sound   Whether the production of sound is an integral part of the electronic resource. If the item is silent, do not use subfield ‡f.
a Sound. The electronic resource includes digitally encoded sound or is intended to produce sound.
u Unknown. The presence or absence of sound or the ability to produce sound is not known.
‡g Image bit depth   Either the exact bit depth of the scanned image(s) that comprises the electronic resource or a three-character alphabetic code which indicates that the exact bit depth cannot be recorded. Bit depth is determined by the number of bits used to define each pixel representing the image. Since only exact bit depth is useful, do not include missing digits represented by hyphens (-).
001–999 Exact bit depth. A single numeric value applies to all the images (e.g., all of the images were scanned in 24-bit color). The numeric value of the image bit depth, using three digits, is right-justified with leading zeroes.
mmm Multiple. The electronic resource is comprised of images that have been scanned and captured at more than one bit depth (e.g., a volume with text and color images in which the text has been scanned as bitonal (1-bit) images and the color plates have been scanned and captured using 24-bit color).
nnn Not applicable. Image bit depth is not applicable, because the electronic resource contains no images.
--- Unknown. The bit depth level of the images contained in the electronic resource is not known.
‡h File formats   The files which comprise the electronic resource are of the same format or type for digitally reformatted materials. These values do not indicate specific types of file formats, which may be contained in variable fields in the record. The information indicates the number of file formats used.
a One file format. The file(s) which comprise(s) the electronic resource are of the same format or type (e.g., all .jpg, all .tif, all .txt, all .sgml, all .wav, etc.).
m Multiple file formats. The files which comprise the electronic resource are of at least two different formats (e.g., .jpg and .tif, .tif and .txt, .sgml and .wav, etc.).
u Unknown. The format(s) of the file(s) which comprise(s) the electronic resource is not known.
‡i Quality assurance target(s)   Whether quality assurance targets have been included appropriately at the time of the reformatting/creation of the electronic resource. Targets are standard reference points which can be interpreted by a human or machine and used to measure resolution, color, faithfulness of representation to the original, etc.
a Absent. Quality assurance targets were not included at the time of reformatting and/or are not present in the electronic resource.
n Not applicable. Quality assurance targets are not applicable to the electronic resource.
p Present. One or more quality assurance targets were appropriately included at the time of reformatting and are present in the electronic resource. Quality assurance targets for scanning include the AIIM Scanning Test Chart #2, Kodak Q13 or Q14 Color Separation Guide and Gray Scale, Kodak Q60 Color Input Target, and the RIT Alphanumeric Resolution Test Object. Targets for re-recording/transfer of audio files include azimuth and reference tones.
u Unknown. The presence of quality assurance targets in the electronic resource is not known.
‡j Antecedent/Source   Information about the source of a digital file important to the creation, use, and management of the digitally reformatted materials.
a File reproduced from original. The content (image, audio, or video) comprising the electronic resource has been created by digitization of the original item. Common examples of original objects include: printed or manuscript texts and/or images that are made on paper or on vellum; photographic prints (and in some instances photographic negatives, depending on creator's intent); analog audio formats; and video formats. Use code b for microforms, even if microform is the original.
b File reproduced from microform. The content comprising the electronic resource has been created by scanning from a microform (e.g., 16 mm and 35 mm microfilm, 105 mm microfiche, microcard, microopaque, etc.).
c File reproduced from electronic resource. The electronic resource has been created or copied from an existing electronic resource (e.g., to generate new copies or derivative copies with lower resolution or smaller file size, to process an existing file with OCR (Optical Character Recognition) software, etc.).
d File reproduced from an intermediate (not microform). The content comprising the electronic resource has been created by reformatting/digitizing from an intermediate other than microform. Common examples of non-microform intermediates for visual and textual materials include 2nd generation video tapes, 35 mm film, photocopies, slides, transparencies, etc. An example of an intermediate for audio materials is 2nd generation analog tapes.
m Mixed. The images comprising the electronic resource have been created from mixed sources (e.g., portions scanned from microfilm, portions scanned from the original item, etc.).
n Not applicable. An antecedent or a source is not applicable to the electronic resource. This code is appropriate for electronic resources other than those created during a reformatting process.
u Unknown. The antecedent or the source for this reformatted electronic resource is not known.
‡k Level of compression   The type of compression techniques to which the electronic resource has been subjected. Use to judge the fidelity of the file to the original.
a Uncompressed. The electronic resource has not been compressed through the use of any compression technique.
b Lossless. The electronic resource has been compressed using the lossless technique. Lossless compression allows an electronic resource to be compressed and decompressed with absolute fidelity each time. To be considered lossless, no informational loss may occur during this process. An example of lossless compression is a TIFF Group 4 compression used on bitonal image files.
d Lossy. The electronic resource has been compressed using the lossy technique. Lossy compression averages or discards some of the encoded digital information. When the file is compressed, it is not the exact replica of the original file. Examples of lossy compression include AC03 (Dolby Digital), JPEG, Kodak ImagePac (Photo CD), and MPEG.
m Mixed. A mixture of compression techniques has been used to compress various parts of the electronic resource.
u Unknown. The compression techniques are not known.
‡l Reformatting quality   The reformatting quality of the electronic resource. This is an overall assessment of the physical quality of the electronic resource in relation to its intended use. Use to judge the level of quality of a file and an institution's commitment to maintain its availability over time.
a Access. The quality of the electronic resource supports current, electronic access to the original item (e.g., for reference use), but is not sufficient to serve as a preservation copy. Examples of electronic resources created for access include articles scanned as a part of an E-Reserve collection which will be discarded in accordance with previous copyright agreements which specify a time limit on the retention of the electronic resource; compressed, lower resolution versions of higher-quality master files that allow for easier transmission and access over the Internet; images created for a temporary, online exhibition (possibly to mirror an in-house installation); photos scanned at lower resolutions to create an online browsing tool for a collection; or video converted to MPEG-2 for Internet access.
n Not applicable. Reformatting quality is not applicable to the electronic resource.
p Preservation. The electronic resource was created via reformatting to help preserve the original item. The capture and storage techniques associated with preservation files ensure high quality, long-term electronic resources that warrant long-term protection.
r Replacement. The electronic resource is of such a very high quality that when played via a listening device, printed out, or viewed on screen, it can serve as a replacement if the original is damaged, destroyed, or lost.
u Unknown. The reformatting quality of the electronic resource is not known.

Printing

Field 007 does not print.

Last revised: October 17, 2013