Question 23

Summary: (i) Identify and explain ONE problem with the BNF technique shown. (ii) In messages being sent, a value is required to indicate the beginning and the ending of a message component. Write a syntax rule in BNF to define . (b) Assess effects of emerging network communications technology on the everyday usage of this system. (c) (i) Outline ways the analyst could involve each different type of user in the process of defining and understanding the problem. (ii) Evaluate the different software development approaches available for this network communications system.