System Engineering

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The Design Cycle

Szerző: Ravin Ratnasuriya

Maintenance

Szerző: Wasana Wickramasinghe

Software engineering

Szerző: Ibrahim Ibrahim

The system unit

Szerző: Halbin Halbin

System Engineering

requirement and design

as we design we learn more about the requirements

initial design may be necessary to structure the requiremnets

constraints posed by the system envi. limit design choices

requirement engineering and system design are linked

system design process

define sub-system interface

specify sub-system functionality

assign requierment to sub-systems

identify sub-systems

partition requirement

non-functional properties

(cannot be measured)

usability

security

safety

functional properties

capacity

scalability

availability

stability

reliability

emergent properties

consequence of the relationship between system components

properties of the system as a whole

Software engineering

socio-technical systems

complex relationships w organizational objectives

non-deterministic

Human + computers

conduct the production of SW-centered socio-technical systems

application of system engineering

some sub-diciplines

definition

it overlaps with technical and human-cntered disciplines such as control engineering and project management

deals with work processes and tools to handles complex engineering pojects

a set of objects together w reletionships between them

what is a system?