Seance 5

Question 1

Purpose of forecasting

Answer 1

Allows to estimate customer demande
Allows planning and scheduling
Allows to scale and shape ressources

Question 2

Methods of forecasting

Answer 2

• Judgmental models (Delphi method)
• time series methods (seasonality models)
• causal methods (regression analysis)

Question 3

Effects of wrong forecasting

Answer 3

Over forecast : excess inventory, obsolescence

Under-forecast: higher product cost, lost “sales” costs

—> collaborative forecasting: sharing forecasting efforts and converting towards a common forecast. —> réduction of costS, improvement of service level, etc

Question 4

Planning :

Answer 4

Based on expectations

Formalization of what is intended to happen

Question 5

Control:

Answer 5

The process of coping with any changes that affect the plan

Question 6

4 Over lapping activities for planning and control

Answer 6

1-Loading (how much to do ?)

2-Sequencing (general guidelines)
Critical ratio: (due date - current date) / day required to complete job

3-scheduling

4-monitoring and control

Question 7

Critical ration (sequencing)

Answer 7

(Due date- current date)/day requires to complete job

Question 8

Dependent demand :

Answer 8

Demand is governed by other thing

Three and the nb of automobiles to be made

Question 9

Postponement

Answer 9

The process by Which the commitment of a product to its final form or location is delayed for as long as possible

Benetton exchange of dye and knit until the season color is known

Question 10

Customer order decoupling point

Answer 10

Separates pull process from push process

-it separates the part of the production line geared towards directly satisfying customer from the part based on planing

Question 11

Push process

Answer 11

A push-model supply chain is one where projected demand determines what enters the process. For example, warm jackets get pushed to clothing retailers as summer ends and the fall and winter seasons start.

Question 12

Pull process

Answer 12

A pull strategy is related to the just-in-time school of inventory management that minimizes stock on hand, focusing on last-second deliveries. Under these strategies, products enter the supply chain when customer demand justifies it. One example of an industry that operates under this strategy is a direct computer seller that waits until it receives an order to actually build a custom computer for the consumer.

Question 13

ERP

Answer 13

Entreprise ressource planning

An IT system that allows us to manage and follow at a daily basis all the info of a company