Q6 (a) An interactive travel planning system that helps users to plan their journey is to be developed. (i) Recommend the most appropriate Software Process Model that can be used in the above system with appropriate justifications. (ii) Suggest three reasons why the selected model is not advantageous in systems where the users are not clear what the system requirements are. (b) Compare any six properties of Waterfall and Spiral Software Process Models. (c) Discuss any two advantages of Incremental Development approach compared to using a Waterfall Approach