54122009: Eales' disease (disorder)

SNOMED CT Concept\constatation clinique\...

\constatation générale à propos des tissus mous\Blood vessel finding\Venous finding\Retinal vein finding\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Venous finding\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Venous finding\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Retinal vessel finding\Retinal vein finding\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Retinal vessel finding\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Retinal vessel finding\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation générale à propos des tissus mous\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)

\constatation à propos d'une région de la tête et du cou\Head finding (finding)\...

\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Venous finding\Retinal vein finding\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Venous finding\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Venous finding\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Retinal vessel finding\Retinal vein finding\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Retinal vessel finding\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Retinal vessel finding\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\constatation cardiovasculaire\Blood vessel finding\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)

\Disease\affection d'un système corporel\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Inflammation of specific body systems\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Inflammation of specific body systems\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\affection du système visuel\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection d'un système corporel\Disorder of cardiovascular system (disorder)\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\trouble inflammatoire à la tête\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\trouble inflammatoire à la tête\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the cardiovascular system\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\inflammation d'un organe corporel spécifique\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\inflammation d'un organe corporel spécifique\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\inflammation d'un organe corporel spécifique\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\inflammation d'un organe corporel spécifique\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\inflammation d'un organe corporel spécifique\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection de la tête\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of posterior segment of eye\Disorder of vitreous body and/or retina (disorder)\trouble rétinien (trouble)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\affection de la tête\trouble inflammatoire à la tête\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\affection de la tête\trouble inflammatoire à la tête\Inflammatory disorder of the eye\Retinitis (disorder)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\Disorder of vein\Abnormality of systemic vein (disorder)\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\Disorder of vein\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\trouble vasculaire rétinien\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Perivasculitis of retina of eye (disorder)\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Retinal vasculitis\Retinal phlebitis\maladie d'Eales (trouble)
\Disease\Disorder of soft tissue\Disorder of blood vessel (disorder)\vasculite (trouble)\Phlebitis\Retinal phlebitis\maladie d'Eales (trouble)

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

440751000241117 maladie d'Eales (trouble) fr Fully specified name Active Entire term case sensitive (core metadata concept) SNOMED CT Common French translation module (core metadata concept)

792319015 Eales' disease (disorder) en Fully specified name Active Entire term case sensitive (core metadata concept) SNOMED CT core

89954012 Eales' disease en Synonym (core metadata concept) Active Entire term case sensitive (core metadata concept) SNOMED CT core

913511000172116 perivascularite rétinienne idiopathique fr Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT Common French translation module (core metadata concept)

967781000172114 maladie d'Eales fr Synonym (core metadata concept) Active Entire term case sensitive (core metadata concept) SNOMED CT Common French translation module (core metadata concept)

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
maladie d'Eales (trouble)	est un(e) (attribut)	Perivasculitis of retina of eye (disorder)	true	Inferred relationship	Some
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Visual pathway structure	false	Inferred relationship	Some
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of blood vessel of retina	false	Inferred relationship	Some	3
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of blood vessel of retina	false	Inferred relationship	Some	2
maladie d'Eales (trouble)	est un(e) (attribut)	Retinal phlebitis	true	Inferred relationship	Some
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of blood vessel of retina	false	Inferred relationship	Some	1
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of blood vessel of retina	false	Inferred relationship	Some	1
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	veine rétinienne (structure corporelle)	false	Inferred relationship	Some	2
maladie d'Eales (trouble)	morphologie associée (attribut)	Perivascular inflammation (morphologic abnormality)	true	Inferred relationship	Some	1
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	veine rétinienne (structure corporelle)	true	Inferred relationship	Some	1
maladie d'Eales (trouble)	morphologie associée (attribut)	inflammation	false	Inferred relationship	Some	2
maladie d'Eales (trouble)	morphologie associée (attribut)	Perivascular inflammation (morphologic abnormality)	false	Inferred relationship	Some	1
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of blood vessel of retina	false	Inferred relationship	Some	1
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	Structure of eye proper (body structure)	false	Inferred relationship	Some	2
maladie d'Eales (trouble)	morphologie associée (attribut)	obstruction	false	Inferred relationship	Some	2
maladie d'Eales (trouble)	localisation d'une constatation (attribut)	structure de la veine (structure corporelle)	false	Inferred relationship	Some	3

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

Reference Sets

Canada English language reference set (foundation metadata concept)

Client's clinical problems, conditions, diagnoses, symptoms, findings, complaints reference set (foundation metadata concept)