Roch, IS development Flashcards
1
Q
System’s Development Life Cycle
(for big projects; costly and timely)
A
- Preliminary Analysis
- Systems Analysis
- Systems design
- Programming
- Testing
- Implementation
- Maintenance
2
Q
Rapid Application Development
(smaller projects; provides feedback during development-> more flexible)
A
- Requirements planning
- User design (sometimes Joint Application Development (stakeholders discuss))
- Construction (parallel with UD until acceptable version)
- Cutover (switching from old system to new)
3
Q
Agile methodology
A
- Small cross-functional teams
- Daily status meetings (continuous feedback)
4
Q
Lean Methodology
A
- start with minimum viable product
-> get feedback -> improve -> if rejected, start again (cycle)
5
Q
Feasibility
A
Economic F: measure cost and benefits of new system
Technical F: ensure organisation has sufficient hard-/software to support system
Operational F: ability of members in organisation to use system
6
Q
Quality Triangle
A
- cost
- time
- quality
when developing product/service, you can only address two of these
7
Q
following characteristics should be considered in the design process of IS
A
- usability: how easy to navigate
- analytical design: how to best represent information
- graphic design: visual appeal
8
Q
different types of implementing
A
- direct cutover ( sets date to terminate old system; least expensive-most risk)
- pilot implementation (pilot group starts using system before the rest)
- parallel operation (simultaneously use old & new-> least risk/ most expensive)
-phased implementation ( different functions of old being turned off and corresponding turned on of new one)
9
Q
advantages of buying
A
. Bugs already found
*Tested already
*Less expensive
*Available more quickly
10
Q
disadvantages of buying
A
- cannot differentiate from competitors
- can’t customise
11
Q
advantages of building
A
- customisation to company’s need
- better control of development
12
Q
Disadvantages f building
A
- costly and timely
- experience needed
