olemus
uuring projekti või suurema uuringu vajalikkuse,
teostatavuse ja raamtingimuste väljaselgitamiseks
= a study to determine the necessity, feasibility and framework conditions of a project or larger study

ülevaateid
https://en.wikipedia.org/wiki/Pilot_experiment

https://pilotandfeasibilitystudies.qmul.ac.uk/introduction/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5716817/

https://www.nccih.nih.gov/grants/pilot-studies-common-uses-and-misuses

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4453116/

https://journals.sagepub.com/doi/full/10.1177/1609406919878341

https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/1471-2288-10-1