This document discusses using a real-life case study to help explain the COSMIC measurement method. It describes the Web Advice Module case study, which measures a small banking application. Developing the case study aims to provide practical examples for novice and experienced users. Real-life cases have advantages like relevance but also challenges like complexity that require more documentation. The working group is finalizing version 0.8 and inviting further input to publish a final version in January 2013.

1. Using COSMIC in a Service Oriented Architecture
NESMA working group “COSMIC”, IWSM - October 2012

2. 1.600 km
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3. Agenda
The Use of Case Studies
The Web Advice Module
The (dis)advantage of a real-life Case Study
Now it’s up to you
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4. Why not read the manuals

5. The use of Case Studies
Purpose of a Case Study
 Present practical example material
 Both for novice and experienced measurers
 Describe the details of the measurement process
For the understanding and propagation of the COSMIC method it is
important
 To have Case Studies available
 From all domains of applicability of the method.
The current situation
 Five Case Studies are available
 Most come from the real-time domain
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6. COSMIC documentation structure
Working group
experience:
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7. Selecting a real-life application to become a Case Study

8. The profile
 Small enough to be measured in half a day
 Simple enough to be understood by novice measurers
 Enough complexity for discussion
 Recognizable real-life functionality
 Covering multiple guidelines
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9. The Web Advice Module
 Small business application of a large commercial bank
 A generated advice based on a simple questionnaire
 Using SOA services to interact with other applications
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11. Describing the complete measurement process

12. Practical example material
 Reduce 19 pages of functional design to 6 pages
 Avoid reference to organisation specific technical jargon
 Remove ambiguities
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13. For novice and experienced users
 Write down the full measurement process in plain language
 References to the measurement manual and guidelines
 Describe all possible discussions briefly but clear
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14. Advantages of real-life specs
 Software everyone can relate to rather than a theoretical case
 Good preparation for real measurement work
 Showing the issues of interaction
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15. Disadvantages of real-life specs
 Describing the process takes twice as many pages as the specs
 A lot of discussion about translating specs to functional user requirements
 Hard to make them unambiguous
 The real world is so complicated
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16. Finalizing this Case Study

17. Version 0.8
 Written and reviewed by 15 practitioners from 5 different countries
 Most of the issues now cleared
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18. It’s up to YOU to finalize it
 Download the 0.8 version from COSMICON.com
 Send your comments to wgcosmic@nesma.nl
 January 2013 the final version will be published
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19. Next year
Your case study added?
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20. Working group members
 Frank Vogelezang  Jolijn Onvlee
 Ordina – Proposal Management Center  Onvlee Opleidingen & Advies
 frank.vogelezang@ordina.nl  jolijn@onvlee.com
 Eric van der Vliet  Harold van Heeringen
 Logica, now part of CGI – E&M Desk  Sogeti Netherlands
 eric.van.der.vliet@logica.com  harold.van.heeringen@sogeti.nl
 Fred de Wilde  Peter Bellen
 ING Domestic Banking  QSM Europe – Estimation
 fred.de.wilde@ing.nl  peter.bellen@qsm-europe.com
wgcosmic@nesma.nl
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21. NESMA
NEtherlands Software Metrics users Association
www.nesma.nl
wgcosmic@nesma.nl
@NesmaNL
NESMA-NL
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