10
Know out in sourcing, out sourcing, self sourcing
⁃ Insourcing – an organization’s team developed the system internally
⁃ Selfsourcing – end users develop info systems with less or no formal assistance from the IS team
⁃ Outsourcing – Organizations hire an external vendor or consultant who specializes in providing development services
⁃ Crowdsorucing – Process traditionally preformed by employees or contractors to a crowd through an open call
⁃ on shore
⁃ Near shore
⁃ Off shore
⁃ advantages – less expensive, quick delivery, helps organization concentrate on core functions and other projects
⁃ disadvantages – loss of control, dependency, vulnerability of strategic info
Know parallel conversion, (new system while also running old system
⁃ Parallel – old and new systems run simultaneously for a short time to ensure the new system works correctly
⁃ Phased in phased out – each module of the new system is converted, corresponding part of the old system is retired
⁃ Plunge – (direct cutover) – old system is stopped and the new system is implemented
⁃ Pilot – Analyst introduce the system in a limited are of the organization
Be familiar with the different usable (if the gov is requiring you to do this project you make way to check into the particulate requirement because of suability)
Know the difference during the fusibility phases
⁃ feasibility (analyze and proposed solutions )Economic, technical , operational, scheduling, legal
be familiar with the different phases of the life cycle (several questions)(SDLC)
⁃ Phase 1 – Planning – system designers must define the problem the organization faces and not symptoms – identified internally and externally
⁃ Phase 2 – requirements – gathering and analyzing – define the problem and generate alternatives for solving it
⁃ Phase 3 – design – The most realistic solutions which offers the highest payoff for the organization is chosen (consists of conceptual, logical, and physical design)
⁃ Phase 4 – implementation – solutions transferred from paper to action
⁃ Phase 5 – maintenance – info systems are operating, enhancement and modifications to the system have been developed and tested
⁃ May be inappropriate if There is lack of specification, input/output process can not be identified, problems is ad hoc, users needs change often
be familiar with the different types of photo types and the benefit and problems
⁃ steps
⁃ define initial requirements
⁃ develop prototype
⁃ Review and evaluate
⁃ revise the prototype
11
Be familiar with new market place
Understand what an enterprise system is
⁃ application used in all the functions of a business which support decision making throughout the organization
EDI know how that is used in spy chain management (few question on this)
⁃ enables business partners to exchange info
⁃ expedites delivering accurate info
