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.
