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Controlling Software Process Improvement

Controlling Software Process Improvement. Marcello Visconti Departamento de Informática Universidad Técnica Federico Santa María Valparaíso, Chile. Motivation.

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Controlling Software Process Improvement

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  1. Controlling Software Process Improvement Marcello Visconti Departamento de Informática Universidad Técnica Federico Santa María Valparaíso, Chile

  2. Motivation • Many improvement initiatives have shown a clear immaturity for the software process - especially in SQA (Software Quality Assurance) and SCM (Software Configuration Management)

  3. State of the practice (CMM)

  4. What happens in Chile? 1994 1995 1996 1997 1998 .... 2001 ISO-9000 Certification Initiative SQA, Doc. & SCM Maturity Models INTEC Project SPIN-CHILE S:PRIME Assessments First 2 companies certified ISO First 3 CMM Assessments

  5. Great difficulty to move past diagnosis/planning into real action - there is a need to close this gap

  6. Our approach to bridge the gap • Improve specific software practices (ex: SQA, SCM practices) through the development and implantation of a set of generic tools - templates, checklists and guides • Manage quantitatively the quality of the implantation of specific tools to assure their usefulness in improving the process - adaptation of SQUID methodology

  7. SQUID • Software QUality In the Development process, aims to provide an integrated approach to quality • Provides a framework to support • different views of quality • different quality measures • flexible models of quality • View: controlling internal properties (software development) will determine external behaviour (end product) • Developed as part of a European ESPRIT research project • Commercially available tool set (October 1999)

  8. SQUID • SQUID supports various processes needed to manage quality • quality specification - specific targets for external characteristics (operational behaviour) • quality planning - specific targets for internal characteristics (development) • quality monitoring - tracking internal properties (development) • quality evaluation - comparing target and actual for external properties (operational behaviour)

  9. SQUID adaptation • SQUID approach requires • integration of different types of measures (internal & external) for software developed • integration of different models (quality, development and measurement models) • Proposal for SQUID adaptation requires • integration of different types of measures (internal & external) for tools implanted • integration of different models (quality, implantation and measurement models)

  10. Pilot application • SQUID adaptation proposed was tested at a medium-size software development company to manage (partially) the implantation of a set of tools related to one key SQA practice, formal technical reviews • Target values were set based mainly on personnel experience • Actual values were collected for the preparation phase (first phase)

  11. Preliminary findings • Use of SQUID adaptation motivated formalization and stronger commitment for implantation process • Defining target values made expectations more realistic • Generic models proposed for SQUID adaptation were a good starting point • Most target values were reached • Some measurements were hard/impossible to collect

  12. Projections • Proposed tools and measurement-based approach to manage their implantation appears interesting to close the gap diagnosis/planning - action • SQUID is flexible enough to manage the quality of developing any product • Adaptation of SQUID - a promising framework for the tool implantation context • Generic models and measurement proposed are subject to review/improvement • Preliminary results are encouraging - need to extend the application to other scenarios

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