ch 1 system concept information system environment Flashcards
system
is defined as set of elements arranged in ordely manner to accomplish an objective
system is created to solve a problem
positive feedback
is routine in nature that encourages the performance of the system
what is SAD
system analysis and design
there are three basic commonents
input
output
process
characteristics of a system
organiztion interaction interdependence intergration acenteral objective
elemants of the system
inputs outputs process control feedback boundries environment
physical system
physical is tangible like chairs and desks
abastract system
nonphysical like social clubs
open vs closed
open like boiling water without alid human closed cup of tea with a lid on it the earth
adaptive vs non adaptive
adaptive الاقتصاد المخ جهاز المناعه البيئه nonadaptive نظام استبدادي governece
parmenant or temorary
1- business polices
2- data processing system
natural or manufactured
1-soler and seasonal
2-rockets dams and trains
determininstic or proplistic
1-we can predict exactly what happens hydrogen and oxygen make water
2- we can not predict what happen exactly
