Software Development You will be given a brief for the development of an on$-$ screen program. You will produce a programme that will produce an entry screen which will prompt the user for inputs. The programme will then undertake a calculation and display the result in a suitable format. You are expected to follow the correct procedure for this development and to demonstrate that you have done so$.$ You must produce documentation that demonstrates that you have followed the following steps: $1.$ a design solution in detail, $2.$ the programme, $3.$ a test plan and results, $4.$ modifications, $5.$ a final solution and test results. Overall the evidence needs to be produced in a logical way and it needs to be technically accurate. A report that contains:

$1.$ a design solution in detail,

$2.$ an annotated programme to show a third party the

structure and flow,

$3.$ a test plan and results,

$4.$ modifications,

$5.$ a final solution and test results.

All details in the report should be presented clearly and in a

way that would be understood by a third party who may or

may not be an engineer.

Case study is: a$^2-$ b$^2=($a$+$b$)($a$-$b$)$ the difference of two squares.