Software Product Line
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Software Product Line

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Software Product Line Software Product Line Presentation Transcript

  • Dr. Himanshu Hora SRMS College of Engg. & Tech., Bareilly INDIA
  • Definition A set of software-intensive system sharing a common, managed set of features that satisfy the specific needs of particular market segment or mission and that are developed from a common set of core assets in a prescribed way.
  • Introduction  A product line consists of :  multiple systems, which have the same architecture and share common core assets  variability among systems  The three main goals of a software product line are to reduce cost, improve delivery time, and improve quality  It is a family of products designed to take advantage of their common aspects and predicted variabilities
  • Introduction Contd.. Market strategy/ Application domain Architecture Components concern to share an are built from is satisfied by used to structure Products CORE ASSETS Product lines take economic advantage of commonality bound variability
  • Things which Make Software Product Line Work  Reuse of followings:  Requirements  Architectural design  Elements  Modeling and analysis  Testing  Project planning  Processes, methods and tools  People  Exemplar systems  Defect elimination
  • Scoping  A product’s line scope is statement about what systems an organization is willing to build as a part of its line  Represents the organization’s best prediction about what products it will be asked to build in future  Lack of commonalities can be a problem in defining the scope
  • Architectures for Product Lines  A product line architecture captures the architectures of many related products simultaneously  Generally employs explicit variation points in the architecture indicating where design decisions may diverge from product to product  A product line architect needs to consider 3 things:  Identifying variation points  Supporting variation points  Evaluating the architecture for product line suitability
  • Identifying Variation Points • Variations discovered during requirement process :  Features, user interface, qualities, and target markets • Variations points discovered during architecture design process :  Either options for implementing the variations identified during requirement process or normal variations during design
  • Supporting Variation Points  Inclusion or omission of elements  Inclusion of different number of replicated elements  Selection of versions of elements that have the same interface but different behavioral or quality attribute characteristics
  • Evaluating the Architecture for Product Line  Architecture is evaluated for its robustness and generality  Evaluation process focuses on :  What to evaluate  How to evaluate  When to evaluate
  • Adoption Strategies  Top-down :  Manager orders to that the organization will use the product line approach  Bottom-up :  Designers and developers begin to share resources and develop generic core assets
  • Product Line Growth Models  Proactive product line :  Organization defines the family using comprehensive definition of scope by taking advantages in the application area  Reactive product line :  Organization builds the next member or member of product family from earlier products
  • Evolving a Product Line  As time passes, the product line must evolve Sources driving the product line evolution :  External sources :  Externally created element may be added to the product line  Internal sources :  New functions may be added to the product and product line may be updated
  • Benefits  Reduced Cost  Improved Time to Market  Flexible Staffing and Productivity  Increased Predictability  Higher Quality
  • Thank You Dr. Himanshu Hora SRMS College of Engg. & Tech., Bareilly INDIA