In this presentation the approach to address software sustainability evaluation is discussed. We believe that software sustainability is a complex business to be addressed by including the largest set of indicators from software development, use, maintenance and disposal.

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24°International Workshop on Software Measurement (IWSM) and 9th International Conference on Software Process and Product Measurement (MENSURA)
Rotterdam (Netherlands) - October 6-8, 2014
Luigi BuglioneBuglione
Fabrizio FabbriniFabbrini
Giuseppe LamiLami
Measurement and Metrics for Green and Sustainable Software
(MeGSuS ’14)
A Broader Perspective
Software Sustainability

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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
Software Sustainability

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© 2014 Buglione, Fabbrini & Lami
ISTI-CNR At a glance
www.isti.cnr.it

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Engineering At a glance
www.eng.it

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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”
Rome, Teatro di Marcello (I century BC)

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Product/Process view(s)
Evaluation views
Product sustainability
Process sustainability

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Assessing process sustainability
ISO/IEC 33000 series
• 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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A MF ISO/IEC 33004-compliant
Meas. Framework (MF)
• Added a Process Attribute (PA) at SL1
• Performance & Sustainability need to be both present at such level

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What and how to measure Sustainability?
Sustainability Indicators
•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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EAM (Entity-Attribute-Measure)
Sustainability Indicators
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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A GQM-like analysis (1)
Sustainability Factors

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A GQM-like analysis (2)
Sustainability Factors
Software direct Effects
Sustainability Assets
People
Project infrastructure
Processes
Institutional context
Product
Power waste
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Tool efficiency
Tool suitability
Process Efficiency
Process Predictability
Process Capability
Team location
Algorithmic – code efficiency
Effort/time waste
Team composition
Tool efficiency
Tool suitability
Process Efficiency
Process Predictability
Process Capability
Team location
Maintainability
Material waste production
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Avoidance of environmentally hazardous materials
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Avoidance of environmentally hazardous materials
Paper waste
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Dematerialization
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Fuel waste
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Teleconferences
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Flexi-work
Team location
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Conclusions && Future Works
•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
Next Steps
...try & see!
All models are wrong. Some models are useful.
(George Box, Mathematician, 1919-2013)
Software Sustainability

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

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Q && A
Bedankt aandachtBedankt voor uw aandacht!!
Thanks attentionThanks for your attention!!
Software Sustainability

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Our Contact Data
Fabrizio
Fabbrini
ISTI/CNRfabrizio.fabbrinii@isti.cnr.it
Giuseppe
Lami
ISTI/CNRgiuseppe.lami@isti.cnr.it
Software Sustainability
Luigi
Buglione
Engineering Ingegneria Informatica/ETSluigi.buglione@eng.it