Analytical test improvement approaches identify problems based on data from the project or team.

Comprehensive and Detailed Explanation From Exact Extract of ISTQB Certified Tester Advanced Level – Test Manager v3.0 syllabus:

The syllabus classifies improvement approaches includinganalytical approaches(e.g.,root cause analysis,GQM, andanalysis of measures/metrics/indicators) that derive improvements byanalysing project/team data.

Model-basedapproaches (e.g.,TMMi,TPI NEXT) are a distinct category that evaluate practicesagainst a reference modelrather than primarily deriving improvements from project data analysis.

Hence,B (Quantitative TPI NEXT assessment)ismodel-based, not ananalyticalapproach;A, C, and Dare analytical.

(References: CTAL-TM v3.0 Syllabus — Chapter 2 “Test Management in the Organization” – improvement approaches: analytical vs. model-based vs. other; examples provided for each category.)

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