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Controlling Software Process Improvement

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... there is a need to close this gap Our approach to bridge the gap Improve specific software practices (ex: ... (Software Quality Assurance) ... (activity plan) ... – PowerPoint PPT presentation

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Title: Controlling Software Process Improvement


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
SPRIME Assessments
First 2 companies certified ISO
First 3 CMM Assessments
5
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6
  • Great difficulty to move past diagnosis/planning
    into real action - there is a need to close this
    gap

7
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

8
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)

9
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)

10
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)

11
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12
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13
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14
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)

15
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16
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

17
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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