In order to reach a wise decision, the Multi Criteria Analysis is selected. Four criteria (time, money, taste and purchase convenience) have been taken into consideration. As a postgraduate student, time is the top concern. The total time spent on cooking a coffee is 30 mins, including preparing and cleaning, while it takes less than 5 mins to buy a latte. Money is another important criterion in this scenario. A coffee machine costs $129.00, a 1kg bag of coffee bean costs $13.00(Coles Supermarkets 2013). Accordingly, the cost of a cup of coffee = (129+13×8)/ (365×2) =$0.32. The price of coffee on campus is $2.70(Fisher Coffee Cart 2013). Taste and purchase convenience are less important to me. Obviously, the coffee from cafe tastes better than home-made one. Concerning the convenience, coffee can be purchased almost everywhere on campus, while home-made coffee can only be enjoyed at home unless a thermal mug is bought . According to all the information above and the performance score, the following results (figure1.0) shows clearly that purchasing coffee on campus is a wiser choice.…