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Toward standardization of an automated software quality model: the Grid-QCM

Toward standardization of an automated software quality model: the Grid-QCM. Adriano Rippa Engineering Ingegneria Informatica S.p.A. ETICS Final Review CERN, Geneva - 15 February 2008. Summary. Introduction to QA concepts The starting point of the study

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Toward standardization of an automated software quality model: the Grid-QCM

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  1. Toward standardization of an automated software quality model: the Grid-QCM Adriano Rippa Engineering Ingegneria Informatica S.p.A. ETICS Final Review CERN, Geneva - 15 February 2008

  2. Summary • Introduction to QA concepts • The starting point of the study • The Grid Quality Certification Model (Grid-QCM) • Possible Questions, Timeline and feedback • Conclusions ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  3. Quality Assurance refers to several concepts • Quality of the implementation process • High level steps of the software production cycle suggesting what the organization must do (not how) to have effective development processes that “may lead” to good software. • Quality of the requirements management • Correct collection/management of requirements and relation with the customer and stakeholders, to reduce the percentage of failures due to misinterpreted requirements. • Quality of the service • Performances of the service • Finally quality of the software… QUALITY Quality of Product Quality of Process CMM Grid-QCM ITIL ISO – 900x ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  4. Some QA Terminology • According to ISO 9126 documentation we can define: • Measure: the number or category assigned to an attribute of an entity by making a measurement (sometimes used as synonymous of metric) • Metric: The defined method to measure an attribute and the scale • Measurement: The use of a metric to assign a value (which may be a number or category) from a scale to an attribute of an entity) ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  5. Quality is a matter of measure! • State-of-the-art provide hundreds of metrics • The most common • Cyclomatic complexity • Lines of Code • Function Points • Mean Time Between (To) Failure • Bugs density • … • Other approaches (Goal Question Metric - GQM) promote user defined metrics • Anomalies distribution • Effort used to solve anomalies • Cost of not founded anomalies • … • An exhaustive list is provided within deliverable D5.7 ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  6. Quality Standards • There are many standards to asses the quality of the processes of an organization • CMM • ISO family (e.g. ISO 9126, ISO 900X) • ITIL • AQAP • But QA means initial investments and managing QA means devote resources to it! • Several studies show that lot of companies (e.g. many SMEs) can’t afford the initial effort and don’t recognise the promised increase of value. • Only ~70 companies in the world are certified at level 5 • 50 of them are in India • source: Gartner • Just 25% of the companies in the world are level 2 or above • source: Kulik, Weber: “Software Metrics Best Practices – 2001”and “Software Metrics State of the Art – 2000” ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  7. QA in non commercial short-live project (e.g. research projects) is missing! • Current quality assurance standards are useful but • They need lot of time to be applied. The organisation need to be structured and certified. What for the short-live consortia? • They provide only theoretical guidelines which need to be adapted and implemented. What for homogeneity and comparability of results? • It’s hard to systematically verify goodness of results: managing tools needed • They need resources to be devoted to • People need training and certification needs inspections and time to be achieved ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  8. QA in grids: oursolution • Grid-QCM is amodelforquality assurance that is • fully automatable in measuring and verifying activities to reduce investments and management effort, • not subjective, to certify the object not the process nor the organization, • product oriented, not process oriented, • …easily adoptable within (Grid) short-live Projects ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  9. Grid-QCM: Preliminary Remarks (1/2) • Using the ETICS tool people can have Grid-QCM implemented for free in the b&t application. • Grid-QCM has been developed within a Grid project and to asses the quality of grid software research projects but it can be used for any software applications . • Grid-QCM has been developed according to • The feedback received from expert people and potential users • several standards: • Grid-QCM has been described according to ISO standards (e.g. ISO/IEC 25000, 14598) • Grid-QCM has been restructured according to ISO 25041 • Quality attributes has been named using the same terminology as ISO 9126 ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  10. Allows Code analysis Allows automation Defines metrics Runs measures The ETICS vision Grid-QCM ETICS SW (v.2.0) ETICS grid infrastructure CERN, INFN, UoW (NMI) ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  11. Grid-QCM: Structure • Grid-QCM is structured in Evaluation Modules (EM). • The set of evaluation techniques are grouped in families. Every family is an Evaluation Module • 5 Evaluation Modules: • Static analysis • Coding style • Structural testing • Functional testing • Standards compliance ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  12. Evaluation Modules 1/2 • Static analysis • Quality characteristics: • Reliability – maturity • Maintainability – analysability • Maintainability – changeability • Maintainability – testability • Static analysis of classes. Statistics on measures are used as predictor of quality characteristics. • Coding style • Quality characteristics: • Maintainability – analysability • Static analysis of the source code. ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  13. Evaluation Modules 2/2 • Structural testing • Quality characteristics: • Functionality – accuracy • Reliability – maturity • Structural testing to classes identified more likely to have many errors. • Functional testing • Quality characteristics: • Functionality – accuracy • Functionality – interoperability • Reliability – maturity • Portability – adaptability • Portability - installability • Platform compliance and to functional abilities of the software • Standards compliance • Quality characteristics: • Functionality – standards compliance ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  14. Grid-QCM: Final Score • Final score should be provided according to the following schema. The items which should be available for the users are: • A table summarizing the results • A list of passed and failed tests • All the important information as: • Software product (e.g. name, version, executable code, documentation..) • Platform (name, version, date) • Quality characteristics (name, evaluation result, evaluation module identification) • Standard compliance (for each standard: name, version, date) • Identification of evaluation report (organization, report number, date) • Identification of certification body (organization, contact information) • Certification data (dates, certification number) • Electronic signature of certification record ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  15. Possible Criticism, Our Answer • I can’t add any overhead to my project • This model (and the capability of automate) reduce the effort in performing continuous build and test activities (e.g. coverage tests) on different SW releases. • What about the cost? • Using the ETICS tool people can have the model implemented for free! • My organisation is certified ISO/CMMI so I… • The model is a standalone quality certification model. • However it can be easily integrated in yet ISO/CMMI certified organisations. ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  16. Current ETICS metrics and Grid-QCM ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  17. The timeline EGEE ’07 1-5 Oct Budapest (Hun) OGF 21 15-19 Oct Seattle (USA) ESA 3rd GRID & e-Collaboration Workshop 16-17 Jan 2008 Frascati (IT) OGF 20/EGEE UF 7-11 May Manchester (UK) Now EELA 3° Conference 3-5 Dec 2007 Catania (IT) OCTOBER DECEMBER FEBRUARY MAY QUALIPSO Conference 16-17 Jan 2008 Rome (IT) ECHOGRID/EUChinagrid Conference 24-25 April Beijing (CHINA) Belief Conference 25-28 June Rio de Janeiro (BRA) ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  18. Grid-QCM: feedback • OGF 20 • Possibility to automate • Unclear formal name of the model • Criticism: GQACM was difficult to remember • Solution: New name: Grid-QCM • Belief/EELA Conference • Automation, CMMI/ISO compatibility • Structure of some parts of the model • Criticism: Metrics not well split according to their role • Solution: Organisation in Evaluation Models • EGEE’07 • Automation, ETICS + Grid-QCM = free, people asked for specific information • Metrics for the process • Criticism: Lack of process metrics • Solution: it’s out of the scope ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  19. Grid-QCM: feedback • OGF 21 • Automation, CMMI/ISO compatibility, people asked for specific information • ISO9000 compatibility • Criticism: no mention about ISO9000 compatibility • Solution: it’s out of the scope • QualiPSo Conference • Automation, Used Standards, ETICS + Grid-QCM = free Many people interested in specific information ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  20. Conclusions • Grid-QCM is a certification model • Automatable • Implemented for free in the ETICS tool • Not in contradiction with classical standards • Ready to interact with classical standards • Not limited to research projects • Not limited to grid software • Grid-QCM require less human effort to be used because it is almost fully automatable • ETICS tool is ready to implement Grid-QCM • During the ETICS 2 project, if approved, • Grid-QCM will be validated on-the-field with at least four projects • Grid-QCM will be proposed for standardisation under ISO. ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  21. Q&A http://www.eu-etics.org ETICS Final Review - Grid-QCM - CERN, 15 February 2008

  22. Grid-QCM: Summarizing Table example E = Excellent G = Good M = Medium F = Fair P = Poor ETICS Final Review - Grid-QCM - CERN, 15 February 2008

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