IB Computer Science SL Exam Review:
Topic 1 Terms Questions And All Correct
Answers.
Feasibility report/study - Answer A study conducted to conclude the potential of a project during or
after the planning phase to determine whether it should be pursued.
Change management - Answer A process of shifting individuals, teams, departments and organizations
from the present state to a desired state (e.g. employee training).
Legacy system - Answer Old technology, hardware, computer system, or application program.
Business merger - Answer The combining of two or more business entities.
Strategies for Integration - Answer 1. Keep both information systems. Develop to have same
functionality.
2. Replace both systems.
3. Select best information systems and combine them.
4. Select one company's system and drop the other one.
SaaS - Answer Software-as-a-Service is 'on-demand software', a contemporary delivery method that
allows software and data to be hosted and managed centrally on a remote datacenter. (Subscription
basis.) Reside on cloud. Need web browser and broadband Internet connection.
State 5 advantages of SaaS - Answer 1. Lower initial cost
2. Easy to upgrade
3. Ease of access from anywhere
4. Easy to predict cost of initial implementation
5. Application ready to use
, State 5 disadvantages of SaaS - Answer 1. Dependence on a third party
2. Security and confidentiality
3. Dependence on Internet connection
4. Risk of data loss
5. Not as powerful as on-premise solutions
Types of changeover (putting new system online and retiring old one) - Answer Parallel, Big Bang or
Direct, Pilot, Phased
Parallel changeover - Answer Both systems work in parallel for a short period of time. Popular—limited
risk.
Big Bang or Direct changeover - Answer (Kind of self-explanitory.) Company unplugs old system and
simultaneously plugs in new system. High risk.
Pilot changeover - Answer New system is introduced in one of sites and extended to other sites over
time. Low risk.
Phased changeover - Answer Company converts one module of system at a time (diff. parts converted
at diff. times). Longer time, but less risk.
Data migration - Answer Transfer of data between different formats, storage types and computer
systems.
Functional testing - Answer Individual commands, text input, menu functions, etc. are tested.
Data testing - Answer Different data values are put into system.
Alpha testing - Answer Done before software product is made available to general public. Carried out
by company (lab-type environment).
Topic 1 Terms Questions And All Correct
Answers.
Feasibility report/study - Answer A study conducted to conclude the potential of a project during or
after the planning phase to determine whether it should be pursued.
Change management - Answer A process of shifting individuals, teams, departments and organizations
from the present state to a desired state (e.g. employee training).
Legacy system - Answer Old technology, hardware, computer system, or application program.
Business merger - Answer The combining of two or more business entities.
Strategies for Integration - Answer 1. Keep both information systems. Develop to have same
functionality.
2. Replace both systems.
3. Select best information systems and combine them.
4. Select one company's system and drop the other one.
SaaS - Answer Software-as-a-Service is 'on-demand software', a contemporary delivery method that
allows software and data to be hosted and managed centrally on a remote datacenter. (Subscription
basis.) Reside on cloud. Need web browser and broadband Internet connection.
State 5 advantages of SaaS - Answer 1. Lower initial cost
2. Easy to upgrade
3. Ease of access from anywhere
4. Easy to predict cost of initial implementation
5. Application ready to use
, State 5 disadvantages of SaaS - Answer 1. Dependence on a third party
2. Security and confidentiality
3. Dependence on Internet connection
4. Risk of data loss
5. Not as powerful as on-premise solutions
Types of changeover (putting new system online and retiring old one) - Answer Parallel, Big Bang or
Direct, Pilot, Phased
Parallel changeover - Answer Both systems work in parallel for a short period of time. Popular—limited
risk.
Big Bang or Direct changeover - Answer (Kind of self-explanitory.) Company unplugs old system and
simultaneously plugs in new system. High risk.
Pilot changeover - Answer New system is introduced in one of sites and extended to other sites over
time. Low risk.
Phased changeover - Answer Company converts one module of system at a time (diff. parts converted
at diff. times). Longer time, but less risk.
Data migration - Answer Transfer of data between different formats, storage types and computer
systems.
Functional testing - Answer Individual commands, text input, menu functions, etc. are tested.
Data testing - Answer Different data values are put into system.
Alpha testing - Answer Done before software product is made available to general public. Carried out
by company (lab-type environment).
