文档介绍：ISO/IEC JTC1/SC7
Software Engineering
Secretariat: CANADA (SCC)
ISO/IEC JTC1 /SC7 N2419R
Date: 2002-03-14
Reference number of document: ISO/IEC TR 9126-2
Committee identification: ISO/IEC JTC1 /SC 7/WG 6
Secretariat: Japan
Software engineering –Product quality – Part 2: External metrics
Titre — Titre — Partie n: Titre
Document type: International technical report
Document subtype: if applicable
Document stage: (40) Enquiry
Document language: E
ISO Basic template Version 1997-02-03
Functionality metrics
Table Suitability metrics - 4
External suitability metrics
Metric name Purpose of the Method of application Measurement, formula and Interpretation Metric Measure Sources of ISO/IEC Target
metrics data putations of measured scale type input to 12207 audience
value type measure- SLCP
ment Reference
Functional How adequate are Number of functions that X=1-A/B 0 <= X <= 1 Absolute X= Count/ Requireme Developer,
adequacy the evaluated are suitable for performing The closer to Count nt Validation, SQA
functions? the specified tasks A= Number of functions in which problems , the more specificatio Quality
comparing to the number are detected in evaluation adequate. A= Count n Assurance,
of function evaluated. B= Number of functions evaluated B= Count (Req.
Spec.) Qualificatio
Evaluation n testing
report
Functional plete is the Do functional tests (black X = 1 - A / B 0<=X<=1 Absolute A= Count Req. spec. Developer,
implementation implementation box test) of the system The closer to B= Count Validation, SQA
according to according to the A = Number of missing functions detected in is the X= Count/ Evaluation Quality
completeness
requirement requirement specifications. evaluation better. Count report Assurance,
specifications? Count the number of B = Number of functions described in
missing functions detected requirement specifications