| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Pure tone audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Air conduction pure tone audiometry, manual with ear phones | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Bone conduction pure tone audiometry, manual | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Automated pure tone audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Bekesy audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Rudmose audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| High frequency audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Audiovisual speech discrimination test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Auditory response cradle test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar vision test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Child development test | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Prader orchidometer assessment | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 2 | 
| Skeletal maturity survey | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Tanner bone age assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Greulich and Pyle bone age assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Children's hearing test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar word discrimination test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Programmable oto-acoustic emissions | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| McCormick toy test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| McCormick toy test - automated | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| McCormick toy test - manual | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Children's vision test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar graded mounted balls test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar graded rolling balls test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar letter test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar 5 letter test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar 7 letter test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar 9 letter test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stycar 10 letter test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Videophotorefraction | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Snellen chart assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Sonsken charts | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Cambridge crowded letter charts | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Sheridan Gardiner test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Sheridan Gardiner single letters test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Sheridan Gardiner linear test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Sheridan Gardiner near vision test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Kay picture test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Assessment and interpretation of higher cerebral function, cognitive testing | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Pure tone audiometry using attention raising techniques | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Stenger test using audiometer | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Four alternative disability and speech-reading test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Connected discourse tracking | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| High frequency tympanometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Ascending/descending threshold audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Child development examination | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier |  | 
| Child development checks | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Preferential looking test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Teller acuity cards | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Keeler acuity cards | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Cardiff acuity cards | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Functional assessment | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Pure tone audiometry, extended, sensitivity index | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Pure tone audiometry, extended, impedance testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Basic pure tone audiometry, air and bone | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Assessment and interpretation of higher cerebral function, developmental testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Assessment and interpretation of higher cerebral function | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Preparation of disability evaluation report | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier |  | 
| Assessment and interpretation of higher cerebral function, aphasia testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Preparation of detailed report for patient's disability including corrective recommendations | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier |  | 
| Dress, grooming and personal hygiene evaluation | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier |  | 
| Tympanometry testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Audioscan audiometry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Allen picture test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| HOTV test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| E test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Visual acuity testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Timed up and go mobility test | Method | True | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Adult hearing test | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Central, steady, maintained visual acuity assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Ocular muscle balance testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Peripheral visual field examination | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Perimetry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed perimetry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Humphrey perimeter plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Goldmann perimeter plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Lister perimeter plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Bjerrum screen plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Friedmann screener plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Henson screener plot | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Amsler chart assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction assessment | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction assessment - distance | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction assessment - near | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction assessment - intermediate distance | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction assessment - referred to cornea | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 2 | 
| Visual testing | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Refraction under general anesthetic | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Vision screening | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Children's vision screening | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Photoscreening | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Visual field examination and evaluation, limited | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Visual field examination and evaluation, extended | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Visual field examination and evaluation, intermediate | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Color vision examination, extended | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Color vision examination | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Visual field study | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Eye curvature measurement | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 2 | 
| Blue on yellow perimetry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| High-pass resolution perimetry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 | 
| Frequency doubling perimetry | Method | False | Functional assessment - action | Inferred relationship | Existential restriction modifier | 1 |