Qualitative
The clarity of information contained within a friction ridge impression.
SWGFAST, Glossary 07-28-2009 ver. 2.0

Concerned with quality or fundamental form and construction.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press

Quality Assurance Measures for the Comparison Process
General procedures to ensure a quality product.  Procedures may include documentation 
of the method used (look for predictive qualities, look for other possible conclusions), 
the data used (specific justification behind the conclusion), the principles used (don’t 
ignore what doesn’t fit, try to falsify your conclusion) and the tests used (verification 
for reproducibility, blind verification for reproducibility, consultation, independent 
examinations, and/or peer review for checking reproducibility along with validity).
Quality assurance measures may also include tests and audits that should be done.  These 
can include having competency tests, proficiency tests, case audits, testimony audits, 
cv audits; having equipment maintenance logs.

Quality Control Measures
A Quality Control Measures is a test that checks a specific incidence (verification, 
peer review, or an audit).

Quality/Quantity
The two factors that combine in an inverse relationship to form the basis for 
determinations of suitability or sufficiency of a friction ridge impression. 
The more quality that is present, the less quantity is necessary, and vice versa.

Quantitative
The amount of information contained within a friction ridge impression.
SWGFAST, Glossary 07-28-2009 ver. 2.0

Concerned with quantity or quantities.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press