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System Engineering
                                    Saranya.V
                                      AP/CSE,
Sri Vidya College of Engineering & Technology,
                                 Virudhunagar
• All aspects of computer based systems
  development including hardware and
  software process engineering.
  – Usually use Waterfall model
  – Little scope for iteration between phases because
    hardware changes are very expensive. Software
    may have to compensate for hardware problems.
• Much scope for misunderstanding here.
• Different disciplines use a different
  vocabulary and much negotiation is required.
• Engineers may have personal agendas to
  fulfill.
System Definition
• Simply known as functional unit.
  – Executes user written programs
  – Performs user designated manipulation
  – Includes arithmetic logic operations
  – Use common storage access.
  – associated software’s
• System engineering focuses on how complex
  engineering projects should be designed and
  managed.
• Define customer needs and required
  functionality early in the development life
  cycle, documenting.
System engineering process

SIMILAR:
•   State the problem(customer needs)
•   Investigate alternatives
•   Model the system
•   Integrate (bringing elements together)
•   Launch the system (output)
•   Assess performance (evaluation criteria)
•   Re-evaluation
Requirements                                            System
  definition                                        decommissioning


                                                    System
    System design                                  evolution



                Sub system                   System
               development                 installation

                               System
                             integration
• Interaction between engineering:
  – All major engg integration

  – Bioinformatics:
     • Biotechnology
     • Information technology
     • etc
System engineering hierarchy
• Model:
  – Simplified representation of a system.
• Simulation
  – Computerized version of a model
• Modeling and simulation is a discipline for
  developing a level of understanding of the
  interaction of the parts of a system.
Hierarchy
• World view
  – Public health care, e governance trade and
    commerce, banking & finance.
• Domain view
  – Concentrate on specific domain
  – Education
     • College, school, etc
• Element view
  – Focuses on sub domain(Admission,exams,etc)
• Detailed view
  – (internal marks, university, internal…)
Modeling the system
• Explains how the system is working.
• Elements of system modeling:
  – Inputs
  – Processes
  – Outcomes.

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System engineering

  • 1. System Engineering Saranya.V AP/CSE, Sri Vidya College of Engineering & Technology, Virudhunagar
  • 2. • All aspects of computer based systems development including hardware and software process engineering. – Usually use Waterfall model – Little scope for iteration between phases because hardware changes are very expensive. Software may have to compensate for hardware problems.
  • 3. • Much scope for misunderstanding here. • Different disciplines use a different vocabulary and much negotiation is required. • Engineers may have personal agendas to fulfill.
  • 4. System Definition • Simply known as functional unit. – Executes user written programs – Performs user designated manipulation – Includes arithmetic logic operations – Use common storage access. – associated software’s
  • 5. • System engineering focuses on how complex engineering projects should be designed and managed. • Define customer needs and required functionality early in the development life cycle, documenting.
  • 6. System engineering process SIMILAR: • State the problem(customer needs) • Investigate alternatives • Model the system • Integrate (bringing elements together) • Launch the system (output) • Assess performance (evaluation criteria) • Re-evaluation
  • 7.
  • 8. Requirements System definition decommissioning System System design evolution Sub system System development installation System integration
  • 9. • Interaction between engineering: – All major engg integration – Bioinformatics: • Biotechnology • Information technology • etc
  • 10. System engineering hierarchy • Model: – Simplified representation of a system. • Simulation – Computerized version of a model • Modeling and simulation is a discipline for developing a level of understanding of the interaction of the parts of a system.
  • 11. Hierarchy • World view – Public health care, e governance trade and commerce, banking & finance. • Domain view – Concentrate on specific domain – Education • College, school, etc • Element view – Focuses on sub domain(Admission,exams,etc) • Detailed view – (internal marks, university, internal…)
  • 12. Modeling the system • Explains how the system is working. • Elements of system modeling: – Inputs – Processes – Outcomes.