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25°International Workshop on Software
Measurement (IWSM) and 10th International
Conference on Software Process and Product
Measurement (MENSURA)
Cracow (Poland) - October 5-7, 2015
Luigi Buglione
Giuseppe Lami
Measurement and Metrics for Green
and Sustainable Software
(MeGSuS ’15)
A Still Broader Perspective From Software to Service Sustainability
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Goals of the presentation
1. Propose an approach to enlarge the view from software (products) to services from an Asset Management perspective
2. Hybridize typical software and service management models and frameworks for leveraging Value Management in organizations and lower project(s) TCO
Sw vs Svc Sustainability
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ISTI-CNR At a glance
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Engineering At a glance
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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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Introduction Sustainability – Extending ISO 25010
• Moving from the ISO (product) quality model proposed in 25010:2011 standard, ‘sustainability’ could be a further characteristic to be included into the model
• The model has been produced by a WG within the SC7 (Systems & Software) domain, but could it be applicable also to an (ICT) service or not?
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Introduction Product vs Service? ISO Glossary
• Service is the result of at least one activity necessarily performed at the interface
between the supplier and customer and is generally intangible” (ISO
9000:2005,§3.4.2, note 2).
• Product is the result of a process, and that “there are four generic product categories,
as follows: services, software, hardware, processed materials”. Again, “many products
comprise elements belonging to different product categories[…] For example, the offered
product ‘automobile’ consists of hardware (e.g. tyres), processed materials (e.g. fuel,
cooling liquid), software (e.g. engine control software, driver’s manual) and service (e.g.
operating explanations given by the salesman)”. (ISO 9000:2005,§3.4.2, note 1).
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Introduction (IT) Service Management – Value
• Value Utility + Warranty
• Service is a means of delivering value to customers by facilitating outcomes
customers want to achieve without the ownership of specific costs and risks. (ITIL v3
Glossary, 2011)
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Sw or Svc? The Entity question
• Is the ‘project scope’ a software or a service project? • If a service has a wider scope than a strictly software project, why don’t using
such representation where a service can include 2+ sub-projects (Sw+Svc)? • BTW, maintenance…is a service! • Thus…isn’t only a wording (more than a content) issue? • Looking at MCMs, CMMI-DEV and CMMI-SVC share 16 out of 22 processes
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Svc Sustainability Quality Models: only for Software?
• Substituting “System/Software Product” with “Service”, couldn’t ISO/IEC 25010:2011 be applied to a service or not? Only to ICT services or to a generic service?
• Direct consequences right now different ISO WG for software and services, with the risk to duplicate
models and efforts (e.g. maturity models for services from WG10 and WG25-40) with possible confusions for adopters
the adoption of the same standards for Software and Service communities could make lower the TCO (Total Cost of Ownership) for ICT projects
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Conclusions & Future Works
• Software and Service: friends or foes? Often there is a ‘wording’ barrier more than a real difference between the 2 worlds E.g. ‘product’ in the ISO glossary can be referred both to products and services E.g. ISO 20000-1 is a service-oriented specification of ISO 9001 A service can manage a software, a software can be used by a service
• Models and Methods Many models, taxonomies and frameworks can be valid for both domains The value in better define points of contacts besides in a lower TCO for projects E.g. ITIL is not only for IT services and can be a good framework for strategy and
design suggestions not valid • Sustainability and Maintainability
Value should be the sum of Utility+Warranty, both for a product and a service Thus, Value is the final goal to achieve in order to really improve our activities Sustainability becomes the way to create and maintain value over time
Next Steps Identify systematic approaches for measuring sustainability, both for products and
services Hybridize more models and techniques (e.g. EAM analysis) between the two
communities for benchmarking purposes
All models are wrong. Some models are useful.
(George Box, Mathematician, 1919-2013)
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Lessons Learned...
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Q & A
Dziękuję za uwagę!
Thanks for your attention!
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Our Contact Data
Giuseppe Lami
ISTI/CNR [email protected]
Luigi Buglione
Engineering Ingegneria Informatica/ETS [email protected]
Sw vs Svc Sustainability
