In a novel project that is less well$-$defined, designers may use day$-$in$-$the$-$life scenarios

to help to characterize what happens when users perform typical tasks. Scenarios can

represent common or emergency situations with both novice and expert users. Personas

can also be included in scenario generation.

Some scenarios are written with elements of Artificial Intelligence $($AI$),$ Virtual Reality

$($VR$)$ and Augmented Reality $($AR$)$ embedded.

How can this scenarios help the designer to build a better application? Explain with

example.

$(5$ Marks$)$

For the following three items, find the problems in each of the following error messages

produced by a source code compiler. Briefly state your reasoning and suggest a better

message.

a$)$ SYNTAX ERROR

$(3$ Marks$)$

b$)$ INCORRECTLY FORMED RHS OF EXPRESSION. BAILING OUT ON LINE $6.$

$(3$ Marks$)$

c$)$ ILLEGAL OPERATION. PROCESS KILLED!!!

$(3$ Marks$)$

$[$Total: $9$ Marks$]$