Rating

Conditional attribute and definitions

Acceptance = acceptability of the equipment to the operators

1

No user previously experienced with the task accepted or adopted the new equipment.

2

About 25% of the users accepted and adopted the equipment. The remaining 75% switched back to the old equipment.

3

About 50% of the users accepted and adopted the equipment. The remaining 50% switched back to the old equipment.

4

About 75% of the users accepted and adopted the equipment. The remaining 25% switched back to the old equipment.

5

All users previously experienced with the task accepted or adopted the new equipment

Skill = requirement for additional (new) skill

1

The skill required to operate the equipment is difficult to acquire.

2

The skill required is considerable, is acquired on the long term with practice.

3

The skill requirement is moderate, is met on the medium term with practice.

4

The skill required is minimal, is acquired easily with a bit of practice.

5

No special skill is required.

Standard = degree of standardisation of the new equipment relative to the old

1

The new equipment is not comparable (the mode of task execution is disruptive).

2

Differs markedly (one or more major modifications transform the task in part).

3

Moderate difference (various minor modifications intended to improve task performance).

4

Slight difference (one or two modifications intended to improve task performance).

5

Practically no change (the modifications are not apparent in the execution of the task).

Workspace = quality (comfort) of the space surrounding the operator

1

Poor, several aspects (unspecified) need improvement.

2

Average, at least two aspects (unspecified) need improvement.

3

Acceptable overall.

4

Very good, except for one aspect that could be improved.

5

Excellent in all aspects.

Involvement of the operators in the equipment implementation process

1

No involvement (indifference to the success of the equipment introduction).

2

Passive participation, operator somewhat responsive.

3

Whimsically passive or active involvement.

4

Active involvement not leading to rapid optimisation of the use of the new equipment.

5

Involvement leading to rapid optimisation of the use of the new equipment.

Vision = Quality of the field of vision

1

Poor, hindered by one or two aspects making equipment operation difficult or dangerous.

2

Average, one or two aspects occasionally making operation difficult or dangerous.

3

Acceptable overall.

4

Very good, except for one aspect that could be improved.