Ergonomics is defined as:

a$.$ the process of structuring organizations not around jobs but around projects that are constantly changing and have different team members.

b$.$ the process of studying and designing easy$-$to$-$use equipment and systems so the physical well$-$being of employees isn't compromised and work gets done more efficiently.

c$.$ the degree to which a job provides freedom and discretion to the jobholder.

d$.$ a naturally occurring phenomenon whereby employees mold their tasks to fit their individual strengths, passions, and motives better.