[Alternative] Chairman [Role] someone experienced in HAZOP but not directly involved in the design, to ensure that the method is followed carefully. Responsible for ensuring that discussion leads to a definite conclusion and is adequately recorded, problems are documented and recommendations passed on [Name] 
Study leader
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