Submitted by: Submitted by huanglina601
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Words: 949
Pages: 4
Category: Science and Technology
Date Submitted: 03/28/2011 06:22 AM
Manzana Insurance
Problem:
Loss of business due to late renewals, long lead times on new policies and quotes Competitive pressure (long lead times have created opportunity for competitor to take market share) Overemphasis on new policies causing loss of profitability (insurance losses)
Using Little’s Law:
Lead time = WIP/TP WIP = 82 policies Throughput = 39 policies/day => Leadtime approximately 2 days
Turnaround Time
Worst case scenario quoted for each operation (95% SCT) E.g. distribution of RUNs avg 41, 95% SCT 128.1 minutes Final “turnaround time” 2-3 times actual lead time => loss of business
Priorities
Should be first come, first served Changed by underwriters to RUN, RAP, RAIN, RERUN => RERUNs done at end of day (rather like producing a batch size = 1 day’s demand) RERUNs released one day before due – why?
Queuing Inputs
Processing time to a station: p Time between arrivals to a station: a Utilization: p/a Squared coefficient of variation: CVp, CVa Process flow diagram Number of workers at each station
1
Note that there are actually 5 products:
RUNs RAPs that are accepted (15%) – RAP/RUN RAPs not accepted RAINs RERUNs
Processing Rates (Exhibit 4)
RUN DC UW R PW Labor input per policy Hours 68.5 43.6 75.5 71 258.6 4.3 RAP/RUN RAP RAIN RERUN Avg. 50 50 43.5 28 41 38 38 22.6 18.7 28.4 64.7 64.7 65.5 75.5 70.4 71 0 54 50.1 54.8 223.7 152.7 185.6 172.3 194.6 3.7 2.5 3.1 2.9 3.2
Calculating Utilization for Distribution
Arrival rate = 39 policies per day Distribution service rate per day:
– – –
Utilization for all operations
DC UW R PW 0.89 0.82 0.76 0.64
41 min/policy on average 7.5 hours * 60 minutes * 4 DC clerks = 1800 min/day available => Distribution capacity 1800 min/day / 41 min/policy = 44 policies/day
Utilization = arrival rate/service rate = 89%
But policy creation is not all that the distribution clerks do!!
“Distribution was also responsible for analyzing and disseminating data published each month by...