Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2016. Module: SNOMED CT core
Descriptions:
Id | Description | Lang | Type | Status | Case? | Module |
3302739016 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
3302740019 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
3302742010 | Reardon Hall Slaney syndrome | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5400915014 | A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5400916010 | A rare syndrome characterised by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
3302739016 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome (disorder) | en | Fully specified name | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
3302739016 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
3302740019 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
3302740019 | Mesomelic dysplasia with cleft palate and camptodactyly syndrome | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
3302742010 | Reardon Hall Slaney syndrome | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
3302743017 | This syndrome manifests with mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. Transmission is autosomal recessive. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5400915014 | A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5400916010 | A rare syndrome characterised by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
3394561001000119 | Mesomeler Kleinwuchs-Gaumenspalte-Kamptodaktylie-Syndrom | de | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
6356461000241117 | syndrome de nanisme mésomélique, fente palatine et camptodactylie | fr | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
6356471000241113 | syndrome de Reardon-Hall-Slaney | fr | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
6356461000241117 | syndrome de nanisme mésomélique, fente palatine et camptodactylie | fr | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
6356471000241113 | syndrome de Reardon-Hall-Slaney | fr | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
3394561001000119 | Mesomeler Kleinwuchs-Gaumenspalte-Kamptodaktylie-Syndrom | de | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Camptodactyly | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Autosomal recessive hereditary disorder | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Cleft palate | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Mesomelic dysplasia | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Connective tissue hereditary disorder | false | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Digestive system hereditary disorder | false | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Hereditary disorder of musculoskeletal system | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Flexion deformity | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 7 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Musculoskeletal structure of digit of hand | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 7 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 8 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 10 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 9 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Finger structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 9 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | anomalie du développement | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 9 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | anomalie du développement | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 10 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Congenital dysplasia | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 8 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Bone structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 8 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Congenital failure of fusion | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 6 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Palatal structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 6 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Structure of internal part of mouth | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 10 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Congenital failure of fusion | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Palatal structure | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Developmental failure of fusion (morphologic abnormality) | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Palatal structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Finger structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Pathological process (attribute) | Pathological developmental process (qualifier value) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Developmental failure of fusion (morphologic abnormality) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Flexion deformity | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Pathological process (attribute) | Pathological developmental process (qualifier value) | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Musculoskeletal structure of digit of hand | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Morphologically abnormal structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Pathological process (attribute) | Pathological developmental process (qualifier value) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Congenital dysplasia | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Bone structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Pathological process (attribute) | Pathological developmental process (qualifier value) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Skeletal system structure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Dysplasia | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Clinical course | Progressive | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Fixed flexion deformity (morphologic abnormality) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Musculoskeletal system structure of digit (body structure) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 2 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Associated morphology | Developmental failure of fusion (morphologic abnormality) | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 5 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Pathological process (attribute) | Pathological developmental process (qualifier value) | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 5 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 5 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Bone structure of head | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 5 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Developmental hereditary disorder | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Interprets | Height / growth measure (observable entity) | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 6 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Interprets | Limb length | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Has interpretation | Below reference range | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 4 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Finding site | Bone structure of extremity | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 3 | |
A rare syndrome characterized by mesomelic shortening and bowing of the limbs, camptodactyly, skin dimpling and cleft palate with retrognathia and mandibular hypoplasia. It has been described in a brother and sister born to consanguineous parents. Transmission is autosomal recessive. | Is a | Multiple system malformation syndrome | true | Inferred relationship | Existential restriction modifier (core metadata concept) |
Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
Reference Sets
Component annotation with string value reference set (foundation metadata concept)