1.1 Study Designs
․Retrospective Studies
․Prospective Studies
※ Survival Analysis
; Deals with analysis of data that have "time to an event".
※ Survival time
; Time until an event occurs.
※ Event
; a. relapse of a disease
b. death
c. response to a treatment
; Economical,
To obtain answers quickly because the cas
Export the service concept
Import customers
Transport customers to new locations
involves services to the customer’s physical possessions.
Export the service to a local service factory.
Import customers
Export the information via telecommunications and transform it locally.
Market Drivers
Competition Drivers
Technology Drivers
Cost Drivers
Government Drivers
Ⅰ Theory Overview
1. Toyota Production System & Lean System
도요타 생산 방식(Toyota Production System)은 Lean system의 일종으로, 현재 가장 각광받고 있는 생산 체계이며, 전 세계적으로 많은 회사에서 사용되고 있다. 그런데 비록 TPS(도요타 생산방식)이 성공에 중요한 요소이지만, 그것이 성공의 핵심은 아니라는 것을
Barilla suffered increasing operational inefficiencies and cost penalties that resulted from large week-to-week variations in its distributors’ order patterns
Causes for Demand Fluctuations
Transportation discounts
Volume discount
Promotional activity
No minimum or maximum order quantities
Product proliferation
Long order lead times
Poor customer service rates
Poor communication
Time = Production Time/day
Required output/day
= 60sec * 600 min
418 tunas
= 86.12 sec
N = Sum of task time (T)
Cycle time (C)
= 160sec
86.12sec
= 1.8
≒ 2 stations
Efficiency
= Sum of task time
Actual # of workstation * Cycle time
= 160 / 2*86.12
=92.89%
Delivery Service
Decrease distribution cost
Maximize deliver