2 questions

i need somebody to work on this

u must be sure of wht u are doing

do q4 and 5 only if

4.  Define a short problem related to the Information Technology field.  The problem can be
of  your  own  imagination but a realistic one  and should be programmable  using any
programming language.  Apply the 6 stages of Requirements Engineering to this problem
and write a short paragraph for each stage, describing how you would address each stage
in the process.
[10 marks]
 
5.  
a.  Use the full truth table method to determine the validity of the following argument
       ((A v B) & C)  D
       (~A & C)  B
B  D
- - - - - - - - -
B
 
[10 marks]
 
b.  Use the short truth table method to determine the validity of the following argument.  A
step-by-step description as to how the value in each cell was arrived at should be given.
       ~P  v (Q & R)
         R  ~Q
~R & ~P
- - - - - - - - -
~Q
[10 marks]