ISOIEC 25030: Quality requirements

1
ISO/IEC 25030 Quality requirements

• Jørgen Bøegh
• DELTA Danish Electronics, Light Acoustics
• jb_at_delta.dk

2
ISO/IEC 25000 SQuaRE

• ISO/IEC CD 25030
• Software engineering
• Software product quality requirements and
  evaluation
• Quality requirements
• This standard will be part of the SQuaRE series
• Software product Quality Requirements and
  Evaluation

3
Aim of the ISO/IEC 25030 standard

• Specify quality requirements objectively
• Support implementation of a software product in
  conformance with quality requirements
• Improve relationship between acquirer and
  developer
• Support feasibility analysis related to software
  quality
• Support acceptance testing, assessment,
  evaluation and certification related to software
  product quality

4
Properties

• Software product properties
• Identification and labelling properties
• Inherent properties
• Ability properties (what the software can do)
• Functional properties
• Interface properties
• Environment properties
• Quality properties (how well the software does
  it)
• Other related software properties
• Process, organisational, personal, etc.

5
Quality model

• A software quality requirement shall be specified
  with reference to a quality model
• Note ISO/IEC 9126 provides a quality model
• Functionality
• Reliability
• Usability
• Efficiency
• Maintainability
• Portability
• Quality in use

6
Links to non-quality properties

• A quality requirement shall be identified with a
  quality (sub)-characteristic
• A quality requirement shall be specified with
  respect to a set of ability properties
• A software requirement shall be specified with
  respect to an operational profile (context of
  use)

7
Measurement

• A quality requirement shall be specified in terms
  of a measurement method and a target value
• The acceptable degree of uncertainty shall be
  specified
• A quality requirement may be specified in terms
  of a set of other quality requirements
• It shall be possible to verify a quality
  requirement within reasonable time and effort

8
Consistency

• The set of quality requirements shall be
  consistent and non-conflicting
• The set of quality requirements shall be
  consistent and non-conflicting with other
  software requirements

9
Conclusion

• Requirements for software product quality
  requirements
• Applicable for all software products
• Independent of development process
• Independent of application area
• Objective statement of requirements
• Measurement

10
Acknowledgement

• European research projects
• SCOPE (Software Certification programme in
  Europe)
• SQUID (Software Quality in the Development
  Process)
• ESERNET (Experimental Software Engineering
  Research Network)