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P. A. C. da Rosa and M. Feilstrecker
Table 1 Definition of weights, scales and metrics for evaluation in the matrix
Factors
Weight (%) Scale Metrics
Intern dimension
Service dependency
for the company
operation
50
1
Absence of the service
doesn’t affect the
operation
2
Absence of the service
affects moderately the
operation
3
Absence of the service
is critical to the
company operation
Co-responsibility
50
1
Contracts that do not
require presentation of
legal documents
2
Contracts that require
presentation of legal
documents at the time
of hiring or
performing the service
3
Contracts that require
presentation of legal
documents and
continuous reports
throughout the
performing service
External dimension Labor intensity
20
1
Low: Production
predominantly
automated
2
Medium: Production
combines automation
and human labor
3
High: Predominantly
by human labor
Potential risk degree
of manipulated
materials a
30
1
No material handling
2
Non-hazardous, inert
and non-inert (Class II
A and B)
3
Hazardous—Class I
Potential risk degree
of environment
negative impacts
20
1
Activity with low
degree of
environmental impact
2
Activity with medium
degree of
environmental impact
(continued)