| Wylie | anatomy of the job |
| Yoder | job = duties, tasks, responsibilities |
| Blum | includes worker qualifications |
| Shubin | distinguish each occupation |
| Others | Jucius · Flippo · Scott, Clothier & Spriegel |
| Observation | most reliable; physical, short-cycle jobs |
| Interview | costly, bias |
| Questionnaire | many people, low cooperation |
| Checklist | costly, large firms |
| Critical incidents | skilled analyst |
| Diaries | beats memory lapse |
| Tech conference | lacks accuracy |
| JD | the job · attracts candidates |
| JS | the person · selects candidates |