task 2
why is SDLC referred to as a waterfall methodology
to represent how each step is a separate part of the process. Only when one step is completed can another step begin.
what is computerisation?
process of applying computer technology to automate tasks and functions that used to be done manually by humans.
what are the 6 steps of the system development life cycle
maintenance, analysis, system design, programming, testing, implementation
name 3 occupations that have a high probability of computerisation
taxi driver, retail salesperson, waiter, cashier, loan officers
name 2 of the 4 development models and define them
agile, rapid application development, lean start-up, sdlc
methodology of computerisation (6-steps)
needs assessment, system design, implementation, training, launch, evaluation & maintenance
compare phased and pilot implementation
phased: provides for different functions of the new application to be gradually implemented with the corresponding functions being turned off in the old system
pilot: subset of the organization known as a pilot group starts using the new system before the rest of the organization.
how does automation impact employment levels/position in occupation?
job displacement, job creation, job transformation...
name the 3 feasibilities and define them
Economic feasibility: to measure the costs and benefits of the new system.
Technical feasibility: to ensure that the organization has sufficient hardware, software and personnel resources to develop and support the proposed system.
Operational feasibility: the willingness and ability of management, users and information systems staff in the organization to build and use the proposed system.
what is a reason for expansion in high-skilled employment
computers start to do the more routine and administrative tasks