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  • 1. Software Quality Assurance S oftware P rocess I mprovement and C apability D E termination Seminar: Oana FEIDI Quality Manager – Continental Automotive
  • 2. What is SPICE?
    • SPICE – Software Process Improvement & Capability dEtermination
        • also known as ISO/IEC 15504 is an international standard for SW process assessments
        • Mainly used in Europe and Australia by the automotive industry
    • Goal
        • To provide assessment results that are repeatable, objective, comparable
    • Future
        • Automotive SPICE launched in April 2006
        • its usage will increase mainly driven by HIS (Audi, BMW, Daimler Chrysler, Porsche, Volkswagen), Ford & Volvo, Fiat
        • Each OEM have different target level; if these are not met, then:
          • Suppliers are requested to improve the development processes
          • In case of high risks/low capability levels, the suppliers are excluded from sourcing
  • 3. The Goal of Process Assessment & Improvement
    • The goal of an improvement is to change an organization’s processes so that they achieve a higher ability to meet its businesses goals
    • Assessments deliver the input for any improvement by detecting strength and weaknesses in the organizations processes
    • Assessments are also a tool used by customers to ascertain the ability of their suppliers to meet their needs
    Process Assessment Rating Improvement
  • 4. SPICE Model’s Structure
    • The reference model architecture for this assessment model is 2-dimensional
        • Process dimension -> contains processes in groups
        • Process Capability dimension -> allows the capability of each process to be measured independently
    Processes Capability
  • 5. SPICE Model’s Structure
        • Process dimension
          • Characterized by set of purpose statements which describe in measurable terms what has to be achieved in order to attain the defined purpose of the process
        • Process Capability dimension
          • Characterizes the level of capability that an organization unit has attained for a particular process or,
          • May be used by the organization as a target to be attained
          • Represent measurable characteristics necessary to manage a process and improve its capability to perform
  • 6. Process structure
  • 7. Process structure
  • 8. Capability Dimension overview Level 5 Optimizing process Level 4 Predictable process Level 3 Established process Level 2 Managed process Level 1 Performed process Base practices of the process are performed ad hoc and poorly controlled . Work products of the process are identifiable . Base practices of the process are planned and tracked . Products are conformed to standards and requirements . The process is managed and performed using a defined process . Projects are using a tailored version of the standard process. The process is performed consistently in practice within defined control limits. The quality of work products is quantitatively known . The process performance is optimized to meet current and future business needs.
  • 9. Capability Level 1 & 2
    • Level 1
    • Level 2
    • The purpose of the process is generally achieved
    • Work products proof implementation of base practices
    • No documented process
    • No planning or checks of performance of the process
    • No quality requirements for work product are expressed
    • The performance of the process is planned and checked
    • The responsibility for developing the work products is assigned to a person or team
    • Requirements for the work products are identified, documented and traced
    • Work products are put under configuration management and quality assurance
    • No documented or defined process
  • 10. Capability Level 3
    • A documented standard process with tailoring guidelines exists and is used in the project
    • Historical process performance data is gathered
    • Experience from the performance of the process is used for process improvement
    • Resources and needed infrastructure for the performance of the process are identified and made available
    • The process is not yet quantitatively understood or managed
    • Process improvement is reactive
  • 11. Process Dimension overview
    • Primary Life Cycle Processes Category
      • Acquisition
      • Supply
      • Engineering: ENG.4 (Software requirements analysis), ENG.5 (Software design), ENG.6 ( Software construction ), ENG.7 (Software integration), ENG.8 ( Software testing )
    • Supporting Life Cycle Processes Category
      • Support: SUP.1 ( Quality assurance ), SUP.2 ( Verification ), SUP.8 (Configuration management), SUP.10 (Change request management)
    • Organizational Life Cycle Process Category
      • Management: MAN.3 (Project Management), MAN.5 (Risk Management)
      • Process Improvement: PIM.3 (Process Improvement)
      • Reuse: REU.2 (Reuse program management)
  • 12. Process Attributes Level Attributes
    • Process innovation
    • Continuous optimization
    • Process measurement
    • Process control
    • Process definition
    • Process deployment
    • Performance management
    • Work product management
    • Process performance
    Level 5 Level 4 Level 3 Level 2 Level 1
  • 13. Measure capability levels
    • The fulfillment of a process attribute (PA) is measured along a scale from 0 – 100% in the following predefined stages:
      • N (not achieved): 0 – 15%
        • The are no or only very limited indications of PA fulfillment
      • P (partially achieved): 16 – 50%
        • There are some indicators that the PA is implemented to the measured extent. In some aspects the process remains unpredictable, though.
      • L (largely achieved): 51 – 85%
        • There is evidence that the PA is implemented to the measured extend in a useful and systematic way. Process performance might still show some weaknesses
      • F (fully achieved): 86 – 100%
        • There is evidence for a complete and systematic PA execution to the measured extent. Process performance does not show any significant shortcomings due to the analyzed processes
  • 14. SPICE Assessments Planning Data collection Data analysis Process rating REPORT
    • Assessment input:
    • purpose
    • scope
    • constraints
    • qualified assessor
    • extended process definition
    Assessment Process
    • Process model
    • process purpose
    • practices
    • Assessment instrument
    • process indicators
    • process management indicators
    • Assessment output
    • process capability level ratings
    • assessment record
  • 15. SPICE Assessments results
  • 16. Debate
    • Let’s rate the base practices for ENG.8 (Software testing) in your organization