[Alternative] Secretary or scribe [Role] to record discussions (accurately but comprehensibly), to alert Study Leader when this becomes impossible,[h] to document problems and recommendations [Name] 
Recorder
S t u d y l e a d e r
R e c o r d e r
D e s i g n e r
U s e r
S p e c i a l i s t
M a i n t a i n e r