## NFO Ontology Properties

### nfo:softwareCategoryIcon

Icon of the software

`Type` : | --
`Domain` : | nfo:SoftwareCategory,
`Range` : | nfo:Image,
`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:entryCounter

Number of entries in the list. Optimize some common queries

`Type` : | --
`Domain` : | nfo:MediaList,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:isPasswordProtected

States if a given resource is password-protected.

`Type` : | --
`Domain` : | nfo:ArchiveItem,
`Range` : | xsd:boolean,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:regionOfInterestWidth

Width of the region. It is normalized (values between 0 and 1) to the total width of the picture.

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | xsd:double,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:hasRegionOfInterest

Link an element with a defined region

`Type` : | --
`Domain` : | nfo:Image,
`Range` : | nfo:RegionOfInterest,
`Superproperties` : | --
`Subproperties` : | --

### 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:frameCount

The amount of frames in a video sequence.

`Type` : | --
`Domain` : | nfo:Video,
`Range` : | xsd:integer,
`Superproperties` : | nfo:count,
`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:gain

Gain of media

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`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: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: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: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: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:deletionDate

The date and time of the deletion.

`Type` : | --
`Domain` : | nfo:DeletedResource,
`Range` : | xsd:dateTime,
`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:definesGlobalVariable

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

`Type` : | --
`Domain` : | nfo:SourceCode,
`Range` : | xsd:string,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:wordCount

The amount of words in a text document.

`Type` : | --
`Domain` : | nfo:TextDocument,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:containsBookmarkFolder

The folder contains a bookmark folder.

`Type` : | --
`Domain` : | nfo:BookmarkFolder,
`Range` : | nfo:BookmarkFolder,
`Superproperties` : | nie:hasLogicalPart,
`Subproperties` : | --

### nfo:frameRate

Amount of video frames per second.

`Type` : | --
`Domain` : | nfo:Video,
`Range` : | xsd:double,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:rearChannels

Number of rear channels.

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | nfo:channels,
`Subproperties` : | --
`Cardinality` : | 1

### nfo:regionOfInterestX

Coordinate X where the region starts. It is normalized (values between 0 and 1) to the width of the picture. Starting in the upper left corner.

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | xsd:double,
`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:regionOfInterestY

Coordinate y where the region starts. It is normalized (values between 0 and 1) to the height of the picture. Starting in the upper left corner.

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | xsd:double,
`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:orientation

`Type` : | --
`Domain` : | nfo:Image,
`Range` : | nfo:Orientation,
`Superproperties` : | --
`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:containsBookmark

The folder contains a bookmark.

`Type` : | --
`Domain` : | nfo:BookmarkFolder,
`Range` : | nfo:Bookmark,
`Superproperties` : | nie:hasLogicalPart,
`Subproperties` : | --

### nfo:isContentEncrypted

Might change (IE of DataObject property?)

`Type` : | --
`Domain` : | nie:InformationElement,
`Range` : | xsd:boolean,
`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:sampleCount

The amount of samples in an audio clip.

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | nfo:count,
`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:model

The model of the equipment

`Type` : | --
`Domain` : | nfo:Equipment,
`Range` : | xsd:string,
`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:regionOfInterestHeight

Height of the region. It is normalized (values between 0 and 1) to the total height of the picture.

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | xsd:double,
`Superproperties` : | --
`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:hashValue

The actual value of the hash.

`Type` : | --
`Domain` : | nfo:FileHash,
`Range` : | xsd:string,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### 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: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: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:duration

Duration of a media piece.

`Type` : | --
`Domain` : | nfo:Media,
`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:streamPosition

`Type` : | --
`Domain` : | nfo:Bookmark,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:domain

`Type` : | --
`Domain` : | nfo:WebHistory,
`Range` : | xsd:string,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:lastPlayedPosition

Position in the media (in seconds) where the play was paused. Positive number, being 0 the beginning of the media.

`Type` : | --
`Domain` : | nfo:Media,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:characterPosition

`Type` : | --
`Domain` : | nfo:Bookmark,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:sideChannels

Number of side channels

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | nfo:channels,
`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:foundry

The foundry, the organization that created the font.

`Type` : | --
`Domain` : | nfo:Font,
`Range` : | nco:Contact,
`Superproperties` : | nco:creator,
`Subproperties` : | --
`Cardinality` : | 1

### nfo:interlaceMode

True if the image is interlaced, false if not.

`Type` : | --
`Domain` : | nfo:Visual,
`Range` : | xsd:boolean,
`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: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:pageCount

Number of pages.

`Type` : | --
`Domain` : | nfo:PaginatedTextDocument,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:definesClass

Name of a class defined in the source code file.

`Type` : | --
`Domain` : | nfo:SourceCode,
`Range` : | xsd:string,
`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:equipmentSoftware

The software of the equipment

`Type` : | --
`Domain` : | nfo:Equipment,
`Range` : | xsd:string,
`Superproperties` : | --
`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:depicts

`Type` : | --
`Domain` : | nfo:Image,
`Range` : | http://www.tracker-project.org/ontologies/poi#ObjectOfInterest,
`Superproperties` : | --
`Subproperties` : | --

### 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:bitrateType

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

`Type` : | --
`Domain` : | nfo:Media,
`Range` : | xsd:string,
`Superproperties` : | --
`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:streamDuration

`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: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:fileLastModified

last modification date

`Type` : | --
`Domain` : | nfo:FileDataObject,
`Range` : | xsd:dateTime,
`Superproperties` : | dc:date,
`Subproperties` : | --
`Cardinality` : | 1

### nfo:hasMediaFileListEntry

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

`Type` : | --
`Domain` : | nfo:MediaList,
`Range` : | nfo:MediaFileListEntry,
`Superproperties` : | --
`Subproperties` : | --

### nfo:softwareCmdLine

Command to launch the software

`Type` : | --
`Domain` : | nfo:Software,
`Range` : | xsd:string,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:regionOfInterestType

The content of a region can be one of the predefined types in the spec

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | nfo:RegionOfInterestContent,
`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:lineCount

The amount of lines in a text document

`Type` : | --
`Domain` : | nfo:TextDocument,
`Range` : | xsd:integer,
`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: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: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: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: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:horizontalResolution

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

`Type` : | --
`Domain` : | nfo:Image,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:equipment

Equipment used to create the media

`Type` : | --
`Domain` : | nfo:Media,
`Range` : | nfo:Equipment,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:softwareIcon

Icon of the software

`Type` : | --
`Domain` : | nfo:Software,
`Range` : | nfo:Image,
`Superproperties` : | --
`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: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:uri

`Type` : | --
`Domain` : | nfo:WebHistory,
`Range` : | xsd:string,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### 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:peakGain

Peak Gain of media

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:characterCount

The amount of characters in the document.

`Type` : | --
`Domain` : | nfo:TextDocument,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:frontChannels

Number of front channels.

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | nfo:channels,
`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: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:lfeChannels

Number of Low Frequency Expansion (subwoofer) channels.

`Type` : | --
`Domain` : | nfo:Audio,
`Range` : | xsd:integer,
`Superproperties` : | nfo:channels,
`Subproperties` : | --
`Cardinality` : | 1

### nfo:width

Visual content width in pixels.

`Type` : | --
`Domain` : | nfo:Visual,
`Range` : | xsd:integer,
`Superproperties` : | --
`Subproperties` : | --
`Cardinality` : | 1

### nfo:height

Visual content height in pixels.

`Type` : | --
`Domain` : | nfo:Visual,
`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:roiRefersTo

Link to an item that is represented in the region. The 'type' of the region can give a clue of what exact content is linked in this property

`Type` : | --
`Domain` : | nfo:RegionOfInterest,
`Range` : | nie:InformationElement,
`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