a$)$ Explain how you would use the reference model of CASE

environments to compare the IDEs offered by different vendors of

a programming language such as Java.$[10]$

b$)$ Using the generic model of a language processing system, design

the architecture of a system that accepts natural language commands

and translates these into database queries in a language such as SQL$.[10]$

c$)$ Write a scenario that could be used to help design tests for a weather

station system.$[10]$