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CHAPTER 1: INTRODUCTION TO SYSTEM ANALYSIS AND DESIGN (INFORMATION…
CHAPTER 1: INTRODUCTION TO SYSTEM ANALYSIS AND DESIGN
INFORMATION TECHNOLOGY
meaning
combination of hardware and software products and services that companies use to manage,access, communicate and share information.
issues
change in world
change in technology
change in client demand
uses information
increase productivity
deliver quality products and service
maintain customer loyalty
make sound decisions
system development
developed by people who are technically qualified, business oriented, highly motivated, good communicator and critical thiking skills.
system analysis and design
step by step process for developing high quality information systems
system analyst
plan develop and maintain information system
information system
who develop
in house application
software package
internet based application service
outsourcing
custom solutions
enterprise wide software strategies
component
hardware
people
software
data
process
business
past: divide by group
office systems
operational systems
decision support systems
executive informations systems
now: divide by functions
enterprise computing system
transaction processing systems
business support systems
knowledge management systems
user productivity systems
system development
tools
modelling
prototyping
computer aided systems engineering (CASE)
methods
systems development life cycle (SDLC)
systems planning
systems anaysis
systems design
systems implementation
systems support and security
structured analysis
waterfall model
objected oriented analysis
interactive model
agile methods
spiral model
guidelines
develop a project paln
involve users and listen carefully to them
use project management tools to identify tasks and milestones
develop accurate costand benefit information
remain flexible