2. The government of an equatorial country award your engineering firm a
contract to develop a sun-tracking device which is to drive a solar generator.
As a systems analyst in the firm you are asked to look at the problem
as a first step.
a. Prototype a simple system which can move so as to always point at a
light source as it moves in a the horizontal plane.
b. Report on your findings.
Outline some of the problems that might be encountered in making a bi-axial device.
 

3. A pet shop wishes to market an automatic cat-flap.
As a local cat-owner as well as a computer owner you are interested in the problem
as a possible possible part-time venture.
a. Consider the problem. Draw and label a few sketches of possible mechanisms
   and structures. Identify a possible 'cat detection mechanism'.
b. Organise a shall sample survey to establish the ratio of cat owners to non-
    cat owners in your area. Find out their inclination to purchase a 'better cat flap'.
b. Model and test the problem. Identify any' snags'.
c. Make notes on your findings end outline the materials and designs
    you would hope to use for a full-scale device.
d. Make notes on what it might Cost to make in either small numbers or larger
quantity. Work out a pricing structure.

4.An architect, commissioned to design a special home for the disabled,
places a contract for consultancy with your computer applications company.
You are asked to advise on the design of a computer system which
could be used with ease by a person in a wheelchair to control appliances
in the house, the lights, the heating and a security system.
a. Discuss possible ideas. Record your ideas with sketches.
b. Draw flow diagrams for possible control mechanisms.
c. Develop, using suitable materials, a working model of your chosen solution.
d. Test the model under different conditions. Record your findings and note any
improvements you make.
e. Put together a presentation of your model and a guide to the system.
Note any recommendations for installing the final system.