# Nepomuk File Ontology (NFO): About files and other desktop resources.

Authors:
  - Tracker Developers
  - Ludger van Elst, DFKI, <elst@dfki.uni-kl.de>
  - Michael Sintek, DFKI, <michael.sintek@dfki.de>
  - Leo Sauermann, DFKI, <leo.sauermann@dfki.de>
  - Antoni Mylka, DFKI, <antoni.mylka@dfki.de>
Editors:
  - Antoni Mylka, DFKI, <antoni.mylka@dfki.de>
  - Tracker developers (translation into turtle)
Contributors:
  - Christiaan Fluit, Aduna, <christiaan.fluit@aduna-software.com>
  - Evgeny 'phreedom' Egorochkin, KDE Strigi Developer, <stexx@mail.ru>
Upstream:

  Upstream version

ChangeLog:

  Tracker changes

Copyright:

  © 2007 DFKI © 2009 Nokia. The ontologies are made available under the terms of NEPOMUK software license (FIXME verify)

## NFO Ontology Classes

### nfo:SoftwareItem

A DataObject representing a piece of software. Examples of interpretations of a SoftwareItem include an Application and an OperatingSystem.

Superclasses :

  nie:DataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Audio

A file containing audio content

Superclasses :

  nfo:Media,

Subclasses :

  --

In domain of :

  nfo:peakGain, nfo:gain, nfo:rearChannels, nfo:averageAudioBitrate, nfo:sampleRate, nfo:frontChannels, nfo:bitsPerSample, nfo:sampleCount, nfo:lfeChannels, nfo:sideChannels, nfo:channels,

In range of :

  --

Note:

This class notifies about changes

### nfo:TextDocument

A text document

Superclasses :

  nfo:Document,

Subclasses :

  nfo:PaginatedTextDocument, nfo:PlainTextDocument,

In domain of :

  nfo:characterCount, nfo:lineCount, nfo:wordCount,

In range of :

  --

### http://www.tracker-project.org/ontologies/poi#ObjectOfInterest

Superclasses :

  rdfs:Resource,

Subclasses :

  --

In domain of :

  --

In range of :

  nfo:depicts,

### nfo:Image

A file containing an image.

Superclasses :

  nfo:Visual,

Subclasses :

  nfo:Icon, nfo:VectorImage, nfo:RasterImage,

In domain of :

  nfo:depicts, nfo:orientation, nfo:horizontalResolution, nfo:verticalResolution,

In range of :

  nfo:softwareIcon, nfo:softwareCategoryIcon,

Note:

This class notifies about changes

### nfo:Orientation

Orientation enum

Superclasses :

  rdfs:Resource,

Subclasses :

  --

In domain of :

  --

In range of :

  nfo:orientation,

Predefined instances :

  nfo:orientation-left, nfo:orientation-right-mirror, nfo:orientation-right, nfo:orientation-left-mirror, nfo:orientation-bottom-mirror, nfo:orientation-bottom, nfo:orientation-top-mirror, nfo:orientation-top,

### nfo:Media

A piece of media content. This class may be used to express complex media containers with many streams of various media content (both aural and visual).

Superclasses :

  nie:InformationElement,

Subclasses :

  nfo:Audio, nfo:Visual,

In domain of :

  nfo:equipment, nfo:genre, nfo:averageBitrate, nfo:bitrateType, nfo:encodedBy, nfo:codec, nfo:bitDepth, nfo:hasMediaStream, nfo:compressionType, nfo:duration, nfo:count,

In range of :

  --

### nfo:Archive

A compressed file. May contain other files or folder inside.

Superclasses :

  nfo:DataContainer,

Subclasses :

  --

In domain of :

  nfo:uncompressedSize,

In range of :

  --

### nfo:Website

A website, usually a container for remote resources, that may be interpreted as HTMLDocuments, images or other types of content.

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:BookmarkFolder

A folder with bookmarks of a webbrowser. Use nfo:containsBookmark to relate Bookmarks. Folders can contain subfolders, use containsBookmarkFolder to relate them.

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:containsBookmark, nfo:containsBookmarkFolder,

In range of :

  nfo:containsBookmarkFolder,

Note:

This class notifies about changes

### nfo:VectorImage

Superclasses :

  nfo:Image,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:FileDataObject

A resource containing a finite sequence of bytes with arbitrary information, that is available to a computer program and is usually based on some kind of durable storage. A file is durable in the sense that it remains available for programs to use after the current program has finished.

Superclasses :

  nie:DataObject,

Subclasses :

  nfo:DeletedResource, nfo:EmbeddedFileDataObject, nfo:RemoteDataObject,

In domain of :

  nfo:fileLastModified, nfo:fileOwner, nfo:hasHash, nfo:fileName, nfo:permissions, nfo:fileSize, nfo:fileCreated, nfo:fileLastAccessed,

In range of :

  --

### nfo:OperatingSystem

An OperatingSystem

Superclasses :

  nfo:Software,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:DataContainer

A superclass for all entities, whose primary purpose is to serve as containers for other data object. They usually don't have any 'meaning' by themselves. Examples include folders, archives and optical disc images.

Superclasses :

  nie:InformationElement,

Subclasses :

  nfo:SoftwareCategory, nfo:Archive, nfo:Trash, nfo:Filesystem, nfo:Folder,

In domain of :

  --

In range of :

  nfo:belongsToContainer,

### nfo:MediaList

A file containing a list of media files.e.g. a playlist

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:mediaListEntry, nfo:listDuration, nfo:entryCounter, nfo:hasMediaFileListEntry,

In range of :

  --

### nfo:Icon

An Icon (regardless of whether it's a raster or a vector icon. A resource representing an icon could have two types (Icon and Raster, or Icon and Vector) if required.

Superclasses :

  nfo:Image,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:SourceCode

Code in a compilable or interpreted programming language.

Superclasses :

  nfo:PlainTextDocument,

Subclasses :

  --

In domain of :

  nfo:definesGlobalVariable, nfo:definesFunction, nfo:definesClass, nfo:programmingLanguage, nfo:commentCharacterCount,

In range of :

  --

### nfo:Bookmark

A bookmark of a webbrowser. Use nie:title for the name/label, nie:contentCreated to represent the date when the user added the bookmark, and nie:contentLastModified for modifications. nfo:bookmarks to store the link.

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:streamDuration, nfo:streamPosition, nfo:pageNumber, nfo:characterPosition, nfo:bookmarks,

In range of :

  nfo:containsBookmark,

Note:

This class notifies about changes

### nfo:CompressionType

Type of compression. Instances of this class represent the limited set of values allowed for the nfo:compressionType property.

Superclasses :

  rdfs:Resource,

Subclasses :

  --

In domain of :

  --

In range of :

  nfo:compressionType,

### nfo:SoftwareCategory

A software category

Superclasses :

  nie:InformationElement, nfo:DataContainer,

Subclasses :

  --

In domain of :

  nfo:softwareCategoryIcon,

In range of :

  --

### nfo:HelpDocument

User guides and similar to assist the user

Superclasses :

  nfo:Document,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:WebHistory

A web history entry

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:uri, nfo:domain,

In range of :

  --

Note:

This class notifies about changes

### nfo:SoftwareService

A service published by a piece of software, either by an operating system or an application. Examples of such services may include calendar, addresbook and mailbox managed by a PIM application. This category is introduced to distinguish between data available directly from the applications (Via some Interprocess Communication Mechanisms) and data available from files on a disk. In either case both DataObjects would receive a similar interpretation (e.g. a Mailbox) and wouldn't differ on the content level.

Superclasses :

  nie:DataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Visual

File containing visual content.

Superclasses :

  nfo:Media,

Subclasses :

  nfo:Video, nfo:Image,

In domain of :

  nfo:colorDepth, nfo:width, nfo:height, nfo:interlaceMode, nfo:tilt, nfo:heading, nfo:aspectRatio,

In range of :

  --

### nfo:PaginatedTextDocument

A file containing a text document, that is unambiguously divided into pages. Examples might include PDF, DOC, PS', DVI etc.

Superclasses :

  nfo:TextDocument,

Subclasses :

  --

In domain of :

  nfo:pageCount,

In range of :

  --

### nfo:Software

A piece of software. Examples may include applications and the operating system. This interpretation most commonly applies to SoftwareItems.

Superclasses :

  nie:InformationElement,

Subclasses :

  nfo:SoftwareApplication, nfo:Application, nfo:OperatingSystem,

In domain of :

  nfo:softwareCmdLine, nfo:softwareIcon, nfo:supercedes, nfo:conflicts,

In range of :

  nfo:supercedes, nfo:conflicts,

### nfo:Application

An application

Superclasses :

  nfo:Software,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:MediaFileListEntry

A single node in the list of media files contained within an MediaList instance. This class is intended to provide a type all those links have. In valid NRL untyped resources cannot be linked. There are no properties defined for this class but the application may expect rdf:first and rdf:last links. The former points to the DataObject instance, interpreted as Media the latter points at another MediaFileListEntr. At the end of the list there is a link to rdf:nil.

Superclasses :

  rdfs:Resource,

Subclasses :

  --

In domain of :

  nfo:entryUrl, nfo:listPosition,

In range of :

  nfo:hasMediaFileListEntry,

### nfo:Attachment

A file attached to another data object. Many data formats allow for attachments: emails, vcards, ical events, id3 and exif...

Superclasses :

  nfo:EmbeddedFileDataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Filesystem

A filesystem. Examples of filesystems include hard disk partitions, removable media, but also images thereof stored in files.

Superclasses :

  nfo:DataContainer,

Subclasses :

  nfo:FilesystemImage,

In domain of :

  --

In range of :

  --

### nfo:FileHash

A fingerprint of the file, generated by some hashing function.

Superclasses :

  rdfs:Resource,

Subclasses :

  --

In domain of :

  nfo:hashAlgorithm, nfo:hashValue,

In range of :

  nfo:hasHash,

### nfo:SoftwareApplication

An application

Superclasses :

  nfo:Software,

Subclasses :

  --

In domain of :

  --

In range of :

  --

Note:

This class notifies about changes

### nfo:PlainTextDocument

A file containing plain text (ASCII, Unicode or other encodings). Examples may include TXT, HTML, XML, program source code etc.

Superclasses :

  nfo:TextDocument,

Subclasses :

  nfo:SourceCode, nfo:HtmlDocument,

In domain of :

  --

In range of :

  --

### nfo:Presentation

A Presentation made by some presentation software (Corel Presentations, OpenOffice Impress, MS Powerpoint etc.)

Superclasses :

  nfo:Document,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:RemotePortAddress

An address specifying a remote host and port. Such an address can be interpreted in many ways (examples of such interpretations include mailboxes, websites, remote calendars or filesystems), depending on an interpretation, various kinds of data may be extracted from such an address.

Superclasses :

  nie:DataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Trash

Represents a container for deleted files, a feature common in modern operating systems.

Superclasses :

  nfo:DataContainer,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Document

A generic document. A common superclass for all documents on the desktop.

Superclasses :

  nie:InformationElement,

Subclasses :

  nfo:HelpDocument, nfo:MindMap, nfo:Spreadsheet, nfo:Presentation, nfo:TextDocument,

In domain of :

  nfo:tableOfContents,

In range of :

  --

Note:

This class notifies about changes

### nfo:Executable

An executable file.

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Folder

A folder/directory. Examples of folders include folders on a filesystem and message folders in a mailbox.

Superclasses :

  nfo:DataContainer,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Font

A font.

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:foundry, nfo:fontFamily,

In range of :

  --

### nfo:EmbeddedFileDataObject

A file embedded in another data object. There are many ways in which a file may be embedded in another one. Use this class directly only in cases if none of the subclasses gives a better description of your case.

Superclasses :

  nfo:FileDataObject,

Subclasses :

  nfo:ArchiveItem, nfo:Attachment,

In domain of :

  nfo:encoding,

In range of :

  --

### nfo:Spreadsheet

A spreadsheet, created by a spreadsheet application. Examples might include Gnumeric, OpenOffice Calc or MS Excel.

Superclasses :

  nfo:Document,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:ArchiveItem

A file entity inside an archive.

Superclasses :

  nfo:EmbeddedFileDataObject,

Subclasses :

  --

In domain of :

  nfo:isPasswordProtected,

In range of :

  --

### nfo:Cursor

A Cursor.

Superclasses :

  nfo:RasterImage,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:HardDiskPartition

A partition on a hard disk

Superclasses :

  nie:DataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:MindMap

A MindMap, created by a mind-mapping utility. Examples might include FreeMind or mind mapper.

Superclasses :

  nfo:Document,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:Equipment

The equipment used to create media

Superclasses :

  nie:InformationElement,

Subclasses :

  --

In domain of :

  nfo:equipmentSoftware, nfo:model, nfo:manufacturer,

In range of :

  nfo:equipment,

### nfo:MediaStream

A stream of multimedia content, usually contained within a media container such as a movie (containing both audio and video) or a DVD (possibly containing many streams of audio and video). Most common interpretations for such a DataObject include Audio and Video.

Superclasses :

  nie:DataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:DeletedResource

A file entity that has been deleted from the original source. Usually such entities are stored within various kinds of 'Trash' or 'Recycle Bin' folders.

Superclasses :

  nfo:FileDataObject,

Subclasses :

  --

In domain of :

  nfo:deletionDate, nfo:originalLocation,

In range of :

  --

### nfo:Video

A video file.

Superclasses :

  nfo:Visual,

Subclasses :

  --

In domain of :

  nfo:averageVideoBitrate, nfo:frameCount, nfo:frameRate,

In range of :

  --

### nfo:FilesystemImage

An image of a filesystem. Instances of this class may include CD images, DVD images or hard disk partition images created by various pieces of software (e.g. Norton Ghost)

Superclasses :

  nfo:Filesystem,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:HtmlDocument

A HTML document, may contain links to other files.

Superclasses :

  nfo:PlainTextDocument,

Subclasses :

  --

In domain of :

  --

In range of :

  --

### nfo:RasterImage

A raster image.

Superclasses :

  nfo:Image,

Subclasses :

  nfo:Cursor,

In domain of :

  --

In range of :

  --

### nfo:RemoteDataObject

A file data object stored at a remote location. Don't confuse this class with a RemotePortAddress. This one applies to a particular resource, RemotePortAddress applies to an address, that can have various interpretations.

Superclasses :

  nfo:FileDataObject,

Subclasses :

  --

In domain of :

  --

In range of :

  --

## NFO Ontology Properties

### nfo:interlaceMode

True if the image is interlaced, false if not.

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:boolean,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:width

Visual content width in pixels.

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:depicts

Type :

  --

Domain :

  nfo:Image,

Range :

  http://www.tracker-project.org/ontologies/poi#ObjectOfInterest,

Superproperties :

  --

Subproperties :

  --

### nfo:isPasswordProtected

States if a given resource is password-protected.

Type :

  --

Domain :

  nfo:ArchiveItem,

Range :

  xsd:boolean,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:bitsPerSample

Amount of bits in each audio sample.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:bitDepth,

Subproperties :

  --

Cardinality :

  1

### nfo:lfeChannels

Number of Low Frequency Expansion (subwoofer) channels.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:channels,

Subproperties :

  --

Cardinality :

  1

### nfo:tilt

Vertical inclination of the camera while capturing the image, in angles starting on 0 as horizontal, positive numbers pointing up, negative angles pointing down

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:definesGlobalVariable

Name of a global variable defined within the source code file.

Type :

  --

Domain :

  nfo:SourceCode,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:programmingLanguage

Type :

  --

Domain :

  nfo:SourceCode,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fileCreated

File creation date

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:dateTime,

Superproperties :

  nie:created,

Subproperties :

  --

Cardinality :

  1

### nfo:domain

Type :

  --

Domain :

  nfo:WebHistory,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:pageCount

Number of pages.

Type :

  --

Domain :

  nfo:PaginatedTextDocument,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:hasHash

Links the file with it's hash value.

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  nfo:FileHash,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:characterPosition

Type :

  --

Domain :

  nfo:Bookmark,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:duration

Duration of a media piece.

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:horizontalResolution

Horizontal resolution of an image (if printed). Expressed in DPI.

Type :

  --

Domain :

  nfo:Image,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fileLastAccessed

Time when the file was last accessed.

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:dateTime,

Superproperties :

  dc:date,

Subproperties :

  --

Cardinality :

  1

### nfo:belongsToContainer

Models the containment relations between Files and Folders (or CompressedFiles).

Type :

  --

Domain :

  nie:DataObject,

Range :

  nfo:DataContainer,

Superproperties :

  nie:isPartOf,

Subproperties :

  --

Cardinality :

  1

### nfo:encodedBy

The contains the name of the person or organisation that encoded the media

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:conflicts

States that a piece of software is in conflict with another piece of software.

Type :

  --

Domain :

  nfo:Software,

Range :

  nfo:Software,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fontFamily

The name of the font family.

Type :

  --

Domain :

  nfo:Font,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

Text indexed :

  This property is indexed, so it can provide results on text search

### nfo:gain

Gain of media

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:count

A common superproperty for all properties signifying the amount of atomic media data units. Examples of subproperties may include sampleCount and frameCount.

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  nfo:frameCount, nfo:sampleCount,

Cardinality :

  1

### nfo:containsBookmarkFolder

The folder contains a bookmark folder.

Type :

  --

Domain :

  nfo:BookmarkFolder,

Range :

  nfo:BookmarkFolder,

Superproperties :

  nie:hasLogicalPart,

Subproperties :

  --

### nfo:definesClass

Name of a class defined in the source code file.

Type :

  --

Domain :

  nfo:SourceCode,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:frameCount

The amount of frames in a video sequence.

Type :

  --

Domain :

  nfo:Video,

Range :

  xsd:integer,

Superproperties :

  nfo:count,

Subproperties :

  --

Cardinality :

  1

### nfo:hashValue

The actual value of the hash.

Type :

  --

Domain :

  nfo:FileHash,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:hasMediaStream

Connects a media container with a single media stream contained within.

Type :

  --

Domain :

  nfo:Media,

Range :

  nie:DataObject,

Superproperties :

  nie:hasPart,

Subproperties :

  --

Cardinality :

  1

### nfo:codec

The name of the codec necessary to decode a piece of media.

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:equipment

Equipment used to create the media

Type :

  --

Domain :

  nfo:Media,

Range :

  nfo:Equipment,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:mediaListEntry

A certain item belongs to a media list. This can reflect that a song is in a playlist, an image or video in an Album

Type :

  --

Domain :

  nfo:MediaList,

Range :

  nie:InformationElement,

Superproperties :

  --

Subproperties :

  --

### nfo:heading

Specifies the direction of travelling while capturing image/video. The range of values from 0.00 to 359.99 (where 0 is due North, 90 is East, 180 South and 270 is West)

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:colorDepth

Amount of bits used to express the color of each pixel.

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:integer,

Superproperties :

  nfo:bitDepth,

Subproperties :

  --

Cardinality :

  1

### nfo:height

Visual content height in pixels.

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:permissions

A string containing the permissions of a file. A feature common in many UNIX-like operating systems.

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:verticalResolution

Vertical resolution of an Image (if printed). Expressed in DPI

Type :

  --

Domain :

  nfo:Image,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:averageBitrate

The average overall bitrate of a media container. (i.e. the size of the piece of media in bits, divided by it's duration expressed in seconds).

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:averageVideoBitrate

The average overall bitrate of a media container. (i.e. the size of the piece of media in bits, divided by it's duration expressed in seconds).

Type :

  --

Domain :

  nfo:Video,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fileSize

The size of the file in bytes. For compressed files it means the size of the packed file, not of the contents. For folders it means the aggregated size of all contained files and folders

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:integer,

Superproperties :

  nie:byteSize,

Subproperties :

  --

Cardinality :

  1

### nfo:originalLocation

The original location of the deleted resource.

Type :

  --

Domain :

  nfo:DeletedResource,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fileOwner

The owner of the file as defined by the file system access rights feature.

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  nco:Contact,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:tableOfContents

Section titles and figure descriptions of the document.

Type :

  --

Domain :

  nfo:Document,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

Text indexed :

  This property is indexed, so it can provide results on text search

### nfo:averageAudioBitrate

The average overall bitrate of a media container. (i.e. the size of the piece of media in bits, divided by it's duration expressed in seconds).

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:softwareIcon

Icon of the software

Type :

  --

Domain :

  nfo:Software,

Range :

  nfo:Image,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:bookmarks

The address of the linked object. Usually a web URL.

Type :

  --

Domain :

  nfo:Bookmark,

Range :

  nie:DataObject,

Superproperties :

  nie:links,

Subproperties :

  --

Cardinality :

  1

### nfo:frontChannels

Number of front channels.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:channels,

Subproperties :

  --

Cardinality :

  1

### nfo:softwareCmdLine

Command to launch the software

Type :

  --

Domain :

  nfo:Software,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:deletionDate

The date and time of the deletion.

Type :

  --

Domain :

  nfo:DeletedResource,

Range :

  xsd:dateTime,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:uncompressedSize

Uncompressed size of the content of a compressed file.

Type :

  --

Domain :

  nfo:Archive,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:bitDepth

A common superproperty for all properties signifying the amount of bits for an atomic unit of data. Examples of subproperties may include bitsPerSample and bitsPerPixel

Type :

  --

Domain :

  nfo:Media,

Range :

  rdfs:Literal,

Superproperties :

  --

Subproperties :

  nfo:colorDepth, nfo:bitsPerSample,

Cardinality :

  1

### nfo:entryCounter

Number of entries in the list. Optimize some common queries

Type :

  --

Domain :

  nfo:MediaList,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:entryUrl

URL to the element in certain position of the list

Type :

  --

Domain :

  nfo:MediaFileListEntry,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:commentCharacterCount

The amount of character in comments i.e. characters ignored by the compiler/interpreter.

Type :

  --

Domain :

  nfo:SourceCode,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:listPosition

Position of an entry in a list. Double, to optimize the poor insertions

Type :

  --

Domain :

  nfo:MediaFileListEntry,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:softwareCategoryIcon

Icon of the software

Type :

  --

Domain :

  nfo:SoftwareCategory,

Range :

  nfo:Image,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:orientation

Type :

  --

Domain :

  nfo:Image,

Range :

  nfo:Orientation,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:compressionType

The type of the compression. Values include, lossy and lossless.

Type :

  --

Domain :

  nfo:Media,

Range :

  nfo:CompressionType,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:sampleCount

The amount of samples in an audio clip.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:count,

Subproperties :

  --

Cardinality :

  1

### nfo:peakGain

Peak Gain of media

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:sampleRate

The amount of audio samples per second.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:listDuration

Sum of the duration of all items in the list. Optimize some common queries. In seconds

Type :

  --

Domain :

  nfo:MediaList,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:manufacturer

The manufacturer of the equipment

Type :

  --

Domain :

  nfo:Equipment,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:equipmentSoftware

The software of the equipment

Type :

  --

Domain :

  nfo:Equipment,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:model

The model of the equipment

Type :

  --

Domain :

  nfo:Equipment,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:uri

Type :

  --

Domain :

  nfo:WebHistory,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:fileLastModified

last modification date

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:dateTime,

Superproperties :

  dc:date,

Subproperties :

  --

Cardinality :

  1

### nfo:characterCount

The amount of characters in the document.

Type :

  --

Domain :

  nfo:TextDocument,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:definesFunction

A name of a function/method defined in the given source code file.

Type :

  --

Domain :

  nfo:SourceCode,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:genre

Genre of media

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

Text indexed :

  This property is indexed, so it can provide results on text search

### nfo:wordCount

The amount of words in a text document.

Type :

  --

Domain :

  nfo:TextDocument,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:channels

Number of channels. This property is to be used directly if no detailed information is necessary. Otherwise use more detailed subproperties.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  nfo:rearChannels, nfo:frontChannels, nfo:lfeChannels, nfo:sideChannels,

Cardinality :

  1

### nfo:bitrateType

The type of the bitrate. Examples may include CBR and VBR.

Type :

  --

Domain :

  nfo:Media,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:isContentEncrypted

Might change (IE of DataObject property?)

Type :

  --

Domain :

  nie:InformationElement,

Range :

  xsd:boolean,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:rearChannels

Number of rear channels.

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:channels,

Subproperties :

  --

Cardinality :

  1

### nfo:aspectRatio

Visual content aspect ratio. (Width divided by Height)

Type :

  --

Domain :

  nfo:Visual,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:encoding

The encoding used for the Embedded File. Examples might include BASE64 or UUEncode

Type :

  --

Domain :

  nfo:EmbeddedFileDataObject,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:foundry

The foundry, the organization that created the font.

Type :

  --

Domain :

  nfo:Font,

Range :

  nco:Contact,

Superproperties :

  nco:creator,

Subproperties :

  --

Cardinality :

  1

### nfo:fileName

Name of the file, together with the extension

Type :

  --

Domain :

  nfo:FileDataObject,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

Text indexed :

  This property is indexed, so it can provide results on text search

### nfo:frameRate

Amount of video frames per second.

Type :

  --

Domain :

  nfo:Video,

Range :

  xsd:double,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:hashAlgorithm

Name of the algorithm used to compute the hash value. Examples might include CRC32, MD5, SHA, TTH etc.

Type :

  --

Domain :

  nfo:FileHash,

Range :

  xsd:string,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:containsBookmark

The folder contains a bookmark.

Type :

  --

Domain :

  nfo:BookmarkFolder,

Range :

  nfo:Bookmark,

Superproperties :

  nie:hasLogicalPart,

Subproperties :

  --

### nfo:hasMediaFileListEntry

This property is intended to point to an RDF list of MediaFiles.

Type :

  --

Domain :

  nfo:MediaList,

Range :

  nfo:MediaFileListEntry,

Superproperties :

  --

Subproperties :

  --

### nfo:sideChannels

Number of side channels

Type :

  --

Domain :

  nfo:Audio,

Range :

  xsd:integer,

Superproperties :

  nfo:channels,

Subproperties :

  --

Cardinality :

  1

### nfo:supercedes

States that a piece of software supercedes another piece of software.

Type :

  --

Domain :

  nfo:Software,

Range :

  nfo:Software,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:streamPosition

Type :

  --

Domain :

  nfo:Bookmark,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:pageNumber

Type :

  --

Domain :

  nfo:Bookmark,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:lineCount

The amount of lines in a text document

Type :

  --

Domain :

  nfo:TextDocument,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1

### nfo:streamDuration

Type :

  --

Domain :

  nfo:Bookmark,

Range :

  xsd:integer,

Superproperties :

  --

Subproperties :

  --

Cardinality :

  1