AHP	analytic hierarchy process
CAGR	compound annual growth rate
CO2	carbon dioxide
CV	coefficient of variation
DSF	Decision Support Framework
Easy-LCA	name of software mentioned in [18]
EoL	End of Life
EOLI	EoL impact
ETTF	Equivalent Time To Failure
FMOLP	fuzzy multi-objective linear programming model
GDL	gas diffusion layer
ISO	International Organization for Standardization
KPI	Key Performance Indicator
LCA	Life Cycle Assessment
LCC	Life Cycle Cost
LCPlanner	name of software mentioned in [18]
MCDA	multi-criteria decision analysis
MCDM	multi-criteria decision methodology
MEA	membrane electrolyte assembly
METTF	Mean ETTF
MINLP	mixed integer non-linear programming
MRO	Maintenance, Repair and Overhaul
MSD	mean stop duration
MTTF	Mean Time To Failure
NOx	any mono-nitrogen oxide
NRV	net recoverable value
Ph	person hour
PQI	process quality improvement
QFD	quality function deployment
QFDNavi	name of software mentioned in [18]
RUP	remaining usage potential
SCR	setup cost reduction
SOx	any sulphur oxide
weh	welding hours
woD	working days
woh	working hours
womin	working minutes