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CHAPTER 7 (development strategy) (software acquisition process (evaluate…
CHAPTER 7 (development strategy)
development strategies overview
the impact of the internet
SAAS
traditional vs web based system development
web 2.0 and cloud computing
outsourcing
growth of outsourcing
service provider
ASP
IBS
outsourcing fees
fixed
subscription
usage model
issues and concern
mission-critical IT system
day to day transaction
offshore outsourcing
In House software development
TCO is the main consideration
make or buy decision
benefit of both method
customizing a software package
system analyst role
decision by them to choose
eliminate system alternative that not meet requirement, rank them according to feasible and present them to the management for final decision.
analyzing cost and benefit
financial analysis tools
payback analysis
ROI
NPV
Cost-benefit analysis checklist
software acquisition process
evaluate the IS requirement
identify potential vendors or outsourcing options
evaluate the alternative
perform cost benefit analysis
5.prepare a recommendation
implement the solution
completion of system analysis tasks
system requirements document
presentation to management
transition to system design
preparing for system design
logical vs physical design