FINAL INTERNATIONAL ISO/IEC DRAFT STANDARD FDIS 25021 ISO/IEC JTC 1 Systems and software engineering - Secretariat: ANSI Systems and software Quality Voting begins on: Requirements and Evaluation 2012-07-23 (SQuaRE) Quality measure elements Voting terminates on: 2012-09-23 Ingenierie des systemes et du logiciel- Exigences de qualite et évaluation des systemes et du logiciel (SQuaRE) Elements de mesure de la qualité RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORT- ING DOCUMENTATION. INADDITIONTOTHEIREVALUATIONAS Reference number BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO- ISO/IEC FDIS 25021:2012(E) LOGICAL, COMMERCIAL AND USER PURPOSES DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE TEC LIGHT OF THEIR POTENTIAL TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE MADE IN @ISO/IEC2012 by IHS unde Not for Resale ISO/IEC FDIS 25021:2012(E) Copyright notice This IsO document is a Draft International Standard and is copyright-protected by IsO. Except as permitted under the applicable laws of the user's country, neither this iso draft nor any extract from it may be means, electronic, photocopying, recording or otherwise, without prior written permission being secured. Requests for permission to reproduce should be addressed to either IsO at the address below or IsO's member body in the country of the requester. IsO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +4122749 0947 E-mail [email protected] Web www.iso.org Violators may be prosecuted. @ISO/IEC2012-All rights reserved I without license from IHS Not for Resale ISO/IEC FDIS 25021:2012(E) Contents Page Foreword .iv Introduction.. V 1 Scope.. 2 Conformance . 3 Normative references. 4 Terms and definitions ... 4.1 data quality......... 4.2 external measure of software quality .... 4.3 internal measure of software quality. 4.4 measure (noun).. 4.5 measure (verb) 4.6 measurement 4.7 measurementfunction. 4.8 measurementmethod. 4.9 measurement procedure 4.10 model.. 4.11 precision... 4.12 property to quantify.... 4.13 quality in use measure 4.14 quality measure .... 4.15 quality measure element (QME).... 4.16 repeatability (of results of measurement).... 4.17 reproducibility (of results of measurement). 4.18 target entity .... 4.19 unit (of measure) 5 Abbreviated terms, 6 Quality measure elements concept.............. 6.1 Presentation of the measurement method model..... 6.2 Table format of QMEs .... AnnexA (informative) Examples of QMEs .. ..12 Annex B (informative) Guide for Designing a Quality Measure Element (QME)... .27 Annex C (informative) Additional Examples of QME and proposed expansion. ...30 Annex D (informative) Measurement scale type ..36 Bibliography.. ii ted withoutlicensefromIHS Not for Resale