$3\mathrm{.}1$ Global Tech Solutions, a mid$-$sized software company, has been approached by a large retail chain, MegaMart, to develop a new inventory management system. MegaMart wants to streamline its supply chain, improve stock accuracy, and enhance customer satisfaction. The system needs to integrate with existing point$-$of$-$sale systems and provide real$-$time updates to both store managers and warehouse staff.

a$)$ Identify and briefly describe the roles of five key participants who should be involved in this systems development project.

b$)$ For each of the following SDLC approaches, explain how the project might be executed and discuss one advantage and one disadvantage of using that approach for this specific project: i$)$ Traditional SDLC ii$)$ Prototyping iii$)$ Rapid Application Development $($RAD$)$ iv$)$ End$-$User Development

c$)$ Based on the scenario and your analysis in part $($b$),$ recommend the most suitable SDLC approach for this project. Justify your choice with two specific reasons related to the project requirements or constraints.

Your answer should demonstrate a clear understanding of the different roles in systems development, the characteristics of each SDLC approach, and the ability to apply this knowledge to a real$-$world scenario.

$[20$ Marks$]$