IWSM Worksop

1. 24°International Workshop on Software Measurement
(IWSM) and 9th International Conference on Software
Process and Product Measurement (MENSURA)
Rotterdam (Netherlands) - October 6-8, 2014
www.eng.it
Luigi BBuugglliioonnee
Fabrizio FFaabbbbrriinnii
Giuseppe LLaammii
Measurement and Metrics for Green
and Sustainable Software
(MeGSuS ’14)
Software Sustainability A Broader Perspective

2. Goals of the presentation
1. Discuss the Sustainability issue in general, more focus
on the ‘product’ entity
2. Introduce the Sustainability from a process-based
viewpoint, for its evaluation by including the largest set of
indicators from software development, use, maintenance
and disposal
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Software Sustainability

3. ISTI-CNR At a glance
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4. Engineering At a glance
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5. Introduction Sustainability – Definition & Concept
Sustainability (originating from the Latin
word sustenere that means: ‘to hold up’)
shows the capability of enduring over time.
In the last years sustainability is more and
more intended as the responsible use of the
heart resources in order to “meet the needs
of the present without compromising the
ability of future generations to meet their
own needs”
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Rome, Teatro di Marcello (I century BC)

6. Evaluation views Product/Process view(s)
Product sustainability
Process sustainability
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7. ISO/IEC 33000 series Assessing process sustainability
• ISO/IEC 15504 provided requirements for a Process
Assessment Model for Process Capability.
• ISO/IEC 33000 series provides requirements a PAM for
any quality characteristic of process. Including Sustainability
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8. Meas. Framework (MF) A MF ISO/IEC 33004-compliant
• Added a Process Attribute (PA) at SL1
• Performance & Sustainability need to be
both present at such level
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9. Sustainability Indicators What and how to measure Sustainability?
• Any quality measurement should be based on a set of identified
indicators
• To identify software sustainability indicators a systematic approach
has been defined
• EAM (Entity-Attribute-Measure) approach could be a way
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10. Sustainability Indicators EAM (Entity-Attribute-Measure)
Source: G. Lami, L. Buglione, F. Fabbrini. “Derivation of Green Metrics for Software” Proceedings of 13th International SPICE Conference on
Process Improvement and Capability dEtermination in Software, Systems Engineering and Service Management (Bremen, 4-6 June 2013).
Communications in Computer and Information Science vol. n. 349. Springer ed. (2013). pp. 13- 24
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11. Sustainability Factors A GQM-like analysis (1)
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12. Sustainability Factors A GQM-like analysis (2)
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Software
direct
Effects
Sustainability Assets
People Project
infrastructure Processes Institutional
context Product
Power
waste --- Tool efficiency
Tool suitability
Process Efficiency
Process
Predictability
Process Capability
Team
location
Algorithmic – code
efficiency
Effort/tim
e waste
Team
composit
ion
Tool efficiency
Tool suitability
Process Efficiency
Process
Predictability
Process Capability
Team
location Maintainability
Material
waste
production
---
Avoidance of
environmentally
hazardous materials
--- ---
Avoidance of
environmentally
hazardous materials
Paper
waste --- --- Dematerialization --- ---
Fuel
waste --- Teleconferences ---
Flexi-work
Team
location
---

13. Conclusions && Future Works
Software Sustainability
• Measuring Sustainability (not only Capability)
 Measurement is fundamental for approximating the size of any entity of interest
 Measurement should be desirable also for processes, not only products/services
 Sustainability can be a further attribute to consider for evaluating a process
• Measurement Framework (MF)
 ISO/IEC 33000 series (from the old 15504) allows the definition of a MF for process
sustainability
 A MF for process sustainability has been proposed
 The presented MF for process sustainability can be applied in ISO/IEC 33000-
compliant process assessments
• Sustainability Indicators
 Balance the number of indicators and attribute to measure
 EAM (Entity-Attribute-Measure) Analysis
 Measure has a cost, but also a large informative value
 (Informative) Value is the goal to really improve our activities
All models are wrong. Some models are useful.
(George Box, Mathematician , 1919-2013)
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 Next Steps
 ...try & see!
All models are wrong. Some models are useful.
(George Box, Mathematician , 1919-2013)

14. Lessons Learned...
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URL: www.dilbert.com
Software Sustainability

15. Q && A
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TThhaannkkss ffoorr yyoouurr aatttteennttiioonn!!
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Software Sustainability

16. Our Contact Data
Fabrizio
Fabbrini
ISTI/CNR
fabrizio.fabbrinii@isti.cnr.it
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Giuseppe
Lami
ISTI/CNR
giuseppe.lami@isti.cnr.it
Software Sustainability
Luigi
Buglione
Engineering Ingegneria Informatica/ETS
luigi.buglione@eng.it