SDLC Part 4 Quiz

What is the main goal of system implementation in SDLC?

• To test the system for any errors

• To document the system for future reference

• To build the system according to the design

• To design the system according to the plan

Which changeover method involves completely changing to a new system on a certain date?

• Parallel running

• Phased changeover

• Pilot changeover

• Direct 'big bang' approach

What is a drawback of the direct 'big bang' approach for changeover?

• Expensive as it requires temporary staff or overtime

• Could cause confusion for staff/customers having two systems

• If new system fails, there is no back-up system

• New system may not work as well until staff are used to using it

What is a benefit of the parallel running changeover method?

• All features of the new system can be fully trialled

• Allows users to gradually get used to the new system

• New system is available immediately if required

• Safest option as if new system fails they still have existing system

What is a drawback of the phased changeover method?

• All features of the new system can be fully trialled

• Might cause problems in the changeover period when they need to communicate with each other

• Slower to get new system up and running compared to some other methods

• If something goes wrong with the new system, only a small part of the organisation is affected

What is a benefit of the pilot changeover method?

• All features of the new system can be fully trialled

• If something goes wrong with the new system, only a small part of the organisation is affected

• Allows users to gradually get used to the new system

• Safest option as if new system fails they still have existing system

What factor determines whether parallel changeover could be used as a method?

• Is the system to be implemented in lots of different locations?

• Is there an existing system?

• Is the system to be implemented in one branch?

• Is the system cutting edge?

What factor would make pilot implementation an ideal method for changeover?

• There is no existing system

• The system is to be implemented in one branch

• The system is cutting edge

• The system is to be implemented in lots of different locations

What is a drawback of the direct 'big bang' approach for changeover?

• New system may not work as well until staff are used to using it

• If new system fails, there is no back-up system

• Expensive as it requires temporary staff or overtime

• Could cause confusion for staff/customers having two systems

Draw a picture of a happy dog.