Sony is currently evaluating its strategy of releasing its latest gaming console PlayStation6(PS6), which is set to be released in 2022.Sony is looking to release three versions ofPS6:PS6,PS6(Digital Edition),and PS6(Pro Edition).Sony needs to decide the number ofPS6 to be manufactured for each model,which subsequently leads to the decision on the pricing of each model.The following information needs to be considered during your decision analysis: The social and economic disruptions of the COVID pandemic may have a negative effect on sales. The graphics and VR(Virtual Reality-immersive gaming experience)support of thePS6 represent a big leap forward from the prior models, and this may have a positive effect on sales. ModelsPS6and PS6(Digital Edition)are based on the previous generationPS5and thus,the sale of the PS6and PS6(Digital Edition) is expected to be quite good (but still uncertain). The modelPS6(Pro Edition)is a brand-new model introduced by Sony, and the sale of this model is hard to predict. there are rumours that Microsoft will also release a similar gaming console-Xbox Series Zin 2022. This may influence the pricing and sales of the proposed PS6range. Assume that the goal of Sony is to maximise profit. a) Explain how decision modelling can be used in decision analysis. Explain the term "requisite decision model".

b) ldentify the four decision elements in the above case study. c) Use all relevant information from the case study to create an influence diagram of this situation.