Description:

Internet Assigned Numbers Authority (IANA) Mime Media Types. Identifies the type of the encapsulated data and identifies a method to interpret or render the data. The IANA defined domain of media types is established by the Internet standard RFC 2045 [http://www.ietf.org/rfc/rfc2045.txt] and 2046 [http://www.ietf.org/rfc/rfc2046.txt]. RFC 2046 defines the media type to consist of two parts:

1. top level media type, and
2. media subtype

However, this HL7 datatypes specification treats the entire media type as one atomic code symbol in the form defined by IANA, i.e., top level type followed by a slash "/" followed by media subtype. Currently defined media types are registered in a database [http://www.iana.org/assignments/media-types/index.html] maintained by IANA. Currently several hundred different MIME media types are defined, with the list growing rapidly. In general, all those types defined by the IANA MAY be used.

Definition:

Application specific media type.

Concept Relationships:
  Generalizes (derived): application/dicom application/msword application/pdf

Definition:

Digital Imaging and Communications in Medicine (DICOM) MIME type defined in RFC3240 [http://ietf.org/rfc/rfc3240.txt].

Concept Relationships:
  Specializes: application

Definition:

This format is very prone to compatibility problems. If sharing of edit-able text is required, text/plain, text/html or text/rtf should be used instead.

Concept Relationships:
  Specializes: application

Definition:

The Portable Document Format is recommended for written text that is completely laid out and read-only. PDF is a platform independent, widely deployed, and open specification with freely available creation and rendering tools.

Concept Relationships:
  Specializes: application

Definition:

Audio media type.

Concept Relationships:
  Generalizes (derived): audio/basic audio/k32adpcm audio/mpeg

Definition:

This is a format for single channel audio, encoded using 8bit ISDN mu-law [PCM] at a sample rate of 8000 Hz. This format is standardized by: CCITT, Fascicle III.4 -Recommendation G.711. Pulse Code Modulation (PCM) of Voice Frequencies. Geneva, 1972.

Concept Relationships:
  Specializes: audio

Definition:

ADPCM allows compressing audio data. It is defined in the Internet specification RFC 2421 [ftp://ftp.isi.edu/in-notes/rfc2421.txt]. Its implementation base is unclear.

Concept Relationships:
  Specializes: audio

Definition:

MPEG-1 Audio layer-3 is an audio compression algorithm and file format defined in ISO 11172-3 and ISO 13818-3. MP3 has an adjustable sampling frequency for highly compressed telephone to CD quality audio.

Concept Relationships:
  Specializes: audio

Definition:

Image media type.

Concept Relationships:
  Generalizes (derived): image/g3fax image/gif image/jpeg image/png image/tiff

Definition:

This is recommended only for fax applications.

Concept Relationships:
  Specializes: image

Definition:

GIF is a popular format that is universally well supported. However GIF is patent encumbered and should therefore be used with caution.

Concept Relationships:
  Specializes: image

Definition:

This format is required for high compression of high color photographs. It is a "lossy" compression, but the difference to lossless compression is almost unnoticeable to the human vision.

Concept Relationships:
  Specializes: image

Definition:

Portable Network Graphics (PNG) [http://www.cdrom.com/pub/png] is a widely supported lossless image compression standard with open source code available.

Concept Relationships:
  Specializes: image

Definition:

Although TIFF (Tag Image File Format) is an international standard it has many interoperability problems in practice. Too many different versions that are not handled by all software alike.

Concept Relationships:
  Specializes: image

Definition:

Model media type.

Concept Relationships:
  Generalizes (derived): model/vrml

Definition:

This is an openly standardized format for 3D models that can be useful for virtual reality applications such as anatomy or biochemical research (visualization of the steric structure of macromolecules)

Concept Relationships:
  Specializes: model

Definition:

Multipart Media Type

Concept Relationships:
  Generalizes (derived): multipart/x-hl7-cda-level-one

Definition:

The HL7 clinical document Architecture, Level 1 MIME package.

Concept Relationships:
  Specializes: multipart

Definition:

For any text

Concept Relationships:
  Generalizes (derived): text/html text/plain text/rtf text/sgml text/x-hl7-ft text/x-hl7-text+xml text/xml

Definition:

For marked-up text according to the Hypertext Mark-up Language. HTML markup is sufficient for typographically marking-up most written-text documents. HTML is platform independent and widely deployed.

Concept Relationships:
  Specializes: text

Definition:

Description:For any plain text. This is the default and is used for a character string (ST) data type.

Concept Relationships:
  Specializes: text

Definition:

The Rich Text Format is widely used to share word-processor documents. However, RTF does have compatibility problems, as it is quite dependent on the word processor. May be useful if word processor edit-able text should be shared.

Concept Relationships:
  Specializes: text

Definition:

For structured character based data. There is a risk that general SGML/XML is too powerful to allow a sharing of general SGML/XML documents between different applications.

Concept Relationships:
  Specializes: text

Definition:

For compatibility, this represents the HL7 v2.x FT data type. Its use is recommended only for backward compatibility with HL7 v2.x systems.

Concept Relationships:
  Specializes: text

Definition:

Description: The content described by the CDA Narrative Block (not just used by CDA).

Concept Relationships:
  Specializes: text

Definition:

For structured character based data. There is a risk that general SGML/XML is too powerful to allow a sharing of general SGML/XML documents between different applications.

Concept Relationships:
  Specializes: text

Definition:

Video media type.

Concept Relationships:
  Generalizes (derived): video/mpeg video/x-avi

Definition:

MPEG is an international standard, widely deployed, highly efficient for high color video; open source code exists; highly interoperable.

Concept Relationships:
  Specializes: video

Definition:

The AVI file format is just a wrapper for many different codecs; it is a source of many interoperability problems.

Concept Relationships:
  Specializes: video