Period Customer arrival Service time Service time Average

Period Customer arrival Service time Service time Average rate Mean Variance number of 1 K (min) v (min’) ““3?” (Average restalll'ant number per min) -l_m- mum-u -nmu David notices that the service time (at a register) is not the same for every period. The service time is longer during the peak period because some customers may order to take-away for more than one person. The table also shows the average number of customers inside the restaurant, which also varies from period to period. (a) What is the average time that each customer spends in the restaurant in each of the three periods? (6 marks) David needs to plan how many registers should be opened in each period. Let the number of registers opened be denoted by 3. Suppose David expects that each customer should wait in line for no longer than 2 minutes on average (excluding the time being serviced at a register). (b) If s registers are opened, what is the utilisation of all the registers as a whole in each period? Evaluate the utilisation for each period with s=1, 2, 3, and 4. (8 marks) (c) What is the minimum number of registers that is sufficient for each period to meet David's waiting time requirement? Hint: use the following modified P-K formula for the average time spent in system: 1 ' 't ‘ > Jfi -2 + 1 p- ‘l' K, I , >5P(1-P). where 5 stands for the number of servers (registers). (If you plug s=1 into the above formula, it reduces to the one in Unit 3.) (6 marks) Further reading if you are interested: ‘A Long Line for a Shorter Wait at the Supennarket,’ The New York Times, June 2007. http://www.nytimes.com/2007Io6/23/businesslz3checkout.htmI (also try the multimedia link on this site.) Assth ment 1 Submission: 9.3oam Wednesday 2 September 2015 (Week 6) Weighting: 20% Length: Refer to questions Format: REPORT Assignment 1 consists of three questions. Please ensure you answer all questions. The three questions add to 100 marks. The overall mark for the assignment will be converted back to a weighted mark out of 20%. Question I (60 Marks, 34 pages maximum) Choose one product that your organisation makes or service that your organisation provides and apply the theory and frameworks described in Units 1 to 3 to describe the supply chain strategy that has been implemented. Specifically, you should discuss: 1. the overall value chain (or shop) and corporate strategy 2. the competitive strategy, order winners and qualifiers and any significant trade-offs required 3. the six supply chain drivers and how these are employed to achieve the desired supply chain strategy 4. how well the supply chain strategy is aligned to the corporate strategy and, if required, any changes that you feel are required to the supply chain drivers that would improve the alignment and therefore the overall customer value proposition. Question 1: Assessment criteria Identify your organisation’s core business, corporate strategy, a product and the associated value chain (or shop)- Describe the competitive strategy, order winners and qualifiers and 20% any significant trade-offs required. Discuss the six supply chain drivers and how these are employed 50% to achieve the desired supply chain strategy Critique the alignment between the corporate strategy, the supply 20% chain strategy and the customer value proposition Appropriate presentation, structure, Harvard referencing, and assignment length.