1.1.1 Identify the context for which a new system is planned.

Question 1

What is the system’s life cycle?

Answer 1

The system’s life cycle refers to the stages in which the development of a new system passes through.

Question 2

What do most SDLCs (Software Development Life Cycles) start with?

Answer 2

An analysis of the existing system.

Question 3

What can be learned from analysing an existing system?

Answer 3

Hardware, software, people working with it, and people using it.

Question 4

What are the two most important considerations when considering the context of a new system?

Answer 4

The extent (what it needs to do) and limitations of the new system.

Question 5

How will a systems analyst look at how the current system works?

Answer 5

Observation, surveys, interviews with users, and tracing how information is handled.

Question 6

What should be considered when proposing a new system?

Answer 6

1) What existing infrastructure from the old system can be used.
2) What requirements on hardware and software will the new system have and what permissions are required.
3) What ethical issues may be present, such as job losses and making people redundant.
4) Will people need retraining?

Question 7

What does TELOS stand for and what is it used to perform?

Answer 7

Technical - is the existing technology sufficient to implement the system?

Economical - is the proposed system cost effective?

Legal - conflicts in proposed system and any laws/regulations

Operational - are existing operational practices and proceeds sufficient to support the maintenance and operation of the new system?

Scheduling - how long will we have to wait?

TELOS is used for a feasibility study, which evaluates and analyses a project and its potential.