olemus
kvaliteediatribuut, mõõdetav muudatuste tegemise hõlpsus

ISO/IEC 2382:
muudatuste tegemise hõlpsuse mõõt,
näiteks programmi muutmisel
=
a measure of the ease with which changes can be made to a program

ISO/IEC 25010 jt (SQuaRE):
võimalikkus muuta toodet, süsteemi või IT-teenust
- toimivalt ja tõhusalt
- defekte lisamata
- kvaliteeti langetamata
=
degree to which a product or system can be effectively and efficiently modified without introducing defects or degrading existing product quality
Note 1. Implementation includes coding, designing, documenting and verifying changes.
Note 2. Modularity (4.2.7.1) and analysability (4.2.7.3) can influence modifiability.
Note 3.: Modifiability is a combination of changeability and stability.

ülevaateid
https://slideplayer.com/slide/12765814/

http://www.few.vu.nl/~hans/publications/y2001/Views03.pdf

https://resources.sei.cmu.edu/asset_files/TechnicalReport/2007_005_001_14858.pdf

https://www.diva-portal.org/smash/get/diva2:837619/FULLTEXT01.pdf