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Overview of Presentation

Overview of Presentation. Reuse Background Development Process Component-Based Development Component Management Select Products IDC Forecast Future Research & References. Why Reuse?. Increase software productivity Shorten software development time

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Overview of Presentation

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  1. Overview of Presentation • Reuse Background • Development Process • Component-Based Development • Component Management • Select Products • IDC Forecast • Future Research & References

  2. Why Reuse? • Increase software productivity • Shorten software development time • Improve software system interoperability • Develop software with fewer people • Move personel more easily from project to project • Reduce software development and maintenance costs • Produce more standardized software • Produce better quality software • Provide a powerful competitive advantage

  3. Types of Reusable Components • Application Template • Data Model • Data Structure • System Architecture • Process Model • Process Definition • Prototype • Plan Skeleton • User Interface Skeleton/GUI • Process Skeleton • Utility Components

  4. Reuse Benefits • Organizational perspective • * shorten development time • * reduce costs • * increase competitiveness • Personnel perspective • * increase productivity • Customer perspective • * achieve greater user satisfaction through the • production of more flexible products

  5. Development Process TOP-DOWN: To determine what is needed to satisfy this need. OTHERS: Consider the similarity among concurrent projects. FUTURE: Consider the possibility of reusing in future projects. BOTTOM-UP: To determine what is available to satisfy this need.

  6. What is CBD? CBD: Component-Based Development

  7. Supplier /Consumer Model

  8. Components vs. Objects Components Objects Business oriented Technology oriented Coarse grained Fine grained Standards based Language based Multiple interfaces Single interface Provide services Provide operations Fully encapsulated Use inheritance Understood by everyone Understood by developers

  9. Component Specification Interfaces Implementation Executable

  10. Complexity of Component Components as assets can grow

  11. Dependency of Components Dependency Type of Components • Versions • Aggregations • Functional • Inheritance • Association

  12. Select Products • Select Component Factory • Component Manager • C++ Synchronizer • Estimator • Requirement Manager • Enterprise for Java • Enterprise for Visual Basic • Select SE

  13. Component Repository Repository Browser Hierarchy

  14. Multiple Support Multiple Repository Support

  15. CBD life cycle Business Direction General Business Requirements Component Requirements User Services Harvest Business and Data services User, Business and Data services

  16. IDC forecast CBD market 1996: $652 million 2001: $12 billion

  17. Tools and Software • Software Composition Workbench • JavaBeans • Visual Café, Symantec • Visual J++ • Enabler, Softlab • Microsoft Repository • UREP, Unisys • Select Software Tools, Select

  18. Future Research • CBD vs. OOD • Business Data Modeling • Consistency of Components • DRE Tool

  19. References * Reusable Software Research Group, West Virginia University http://www.csee.wvu.edu/~resolve/scw/rsrg-brochure-nov-98.html * Reusable Software Research Group, Ohio State University http://www.cis.ohio-state.edu/rsrg/index.html * Select Software Tools http://www.selectst.com/ * Software Reuse Executive Primer, DOD http://dii-sw.ncr.disa.mil/ReuseIC/pol-hist/primer/ * Model-Driven Software Reuse, Extended Intelligence Inc

  20. References (Cont.) * Reuse: Re-engineering the Software Process, Extended Intelligence Inc * Experiences from the OO Playing Field, Extended Intelligence Inc * Getting Started with Software Reuse: Secrets to Reuse Success Revealed

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