SCM DEFINED The supply chain is the network of organizations that are involved through upstream and down stream linkages, in different processes and activities that produce value in the form of products and services in the hands of the ultimate customer. Supply Chain may be defined as “flow of materials through procurement, manufacturing, distribution, sales & disposal”.
Dynamics of Material Flow Supplier Plant RS Logistics Retailer
SCM FLOWS MATERIAL MONEY INFORMATION Procurement Manufacturing Distribution Customer
Supply Chain Relationship
What is SCM ? Buying Selling Making Moving Ware housing SCM is a business network covering from buying, making, moving, warehousing to selling
Reduced total system costs
Establishment of a collaborative framework
Near real time information flow
Reduced variation and increased quality
Business growth opportunities
Preferred source for new opportunities
Expanded benefits to other customers
Supply Chain Benefits
The Three Ts
Transactional Efficiency Critical Data to improve : Multiple handling Transit damage Process delays Excess freight Delays End-to-end cycle-time Warehouse fees Inventory turns Yield Late Deliveries Perceived Value Intrinsic Value The Supply Chain “Iceberg”
Supply Chain Decisions OPERATIONAL TACTICAL STRATEGIC Procurement Distribution Manufacturing Logistics
SCM FOCUS / LEARNINGS
FLOW OF INFORMATION / MATERIAL AND CASH
INPUTS AND OUTPUTS
ELEMENTS OF SCM
What is inventory Shortage Excess
The stock of material lying with you for which payments are made but which are yet to be delivered to the customers and paid for by them.
Material stocked to meet the expected demand in the market.
An idle resource which locks the capital.
Why inventories are necessary
To satisfy the customer demands without time lag.
To cover time required for procurement of material .
To cater to fluctuations in demand.
Seasonal demand of products.
Production constraints of suppliers.
To retain supplier goodwill.
WORK OUT INVENTORY NORMS BASED ON SERVICE FREQUENCY, SALES AND DEMAND VARIABILITY & TRANSIT TIME VARIABILITY
Consider sales qty. – 300 CLD’S per month, Demand variability – 20 %, Supply variability of + / - 2 Days & Service frequency of 1 / week
Service Level & Inv. Costs Costs Opportunity cost curve. Total costs A Inventory + Service costs. Low Service levels High I Interpretation: At low service levels, costs due to lost opportunities are very high. When service levels are raised, inventory + service costs increase marginally but costs due to lost opportunities come down drastically. Enlarged view of portion marked at “A” is shown in the next graph for further explanation.
ENLARGED VIEW OF PORTION “A”
In ‘zone of improvement ’, as service level goes up by increasing stocks and incurring in extra expenditure for giving better service, the gains obtained due to better sales outweigh the costs incurred.
In ‘zone of indifference’, the gains and costs are more or less balanced.
In ‘zone of perfection’, as service levels are raised to near to 100%, the costs outweigh the gains but in modern competitive environment, this may become a necessity for survival
Zone of Indifference Zone of Perfection. Zone of Improvement
Scientific Replenishment System
The Use of Safety Stock Inventory on Hand Inventory on Hand Stock out Time Stock out is avoided Time Safety Stock
Based on principle of management by exception.
Unit value is not a consideration. Analysis is based on
total consumption value of items in predetermined time span.
Criticality/importance of item is not a consideration
All the items are divided in three categories.
Decisions are based on 80 : 20 rule.
ABC Analysis Exercise
Classifying inventory according to some measure of importance and allocating control efforts accordingly.
A - very important
B - mod. important
C - least important
Annual value of items A B C High Low Few Many Number of Items
DECISION PARAMETERS FOR ABC ANALYSIS
ADEQUACY OF STOCKS
FREQUENCY OF STOCK CHECKING
LOCATION IN WAREHOUSE
Based on speed of movement of material.
Some materials have regular and high volume demand and move ‘Fast’ (F),
some material have intermittent and unpredictable demand and hence move ‘Slow’ (S)
and a few items have practically no takers and hence keep on lying in stores for long period of time and categorized as ‘Non moving’ (N).
FAST MOVING SLOW MOVING NON MOVING
INVENTORY FOCUS / LEARNINGS
What is Inventory and why do we need inventory ?
How do we avoid non moving and slow moving inventory?
How do we classify and analyze inventory?
ELEMENTS OF SCM
ELEMENTS OF WAREHOUSING
Ease of receipts, storage and issues.
Uninterrupted movement of material, men and equipment.
Optimum utilization of space.
Ease of locating the material.
Safety. & Security.
Building. : Preferably single storied, enough height, proper lighting and ventilation, protection against hazards like fire and lightening.
Identification of Material
Writing, painting, engraving, stamping, etching, color coding on the part/case/box.
IMPROVED STORAGE SYSTEM EXERCISE
Features of a good warehouse
Place for everything and everything in its place.
FMFO – First Manufactured and First Out principle.
Maintenance of prompt and correct records.
Fast and courteous service to customers.
Minimum damages to the material.
Protection against pilferage.
Regular verification and inspection of material.
Regular inventory taking and reconciliation.
Maintaining inventory within specified norms.
Learning's from the topic
How do we keep our warehouse in more orderly manner ? ( Understanding Location and layout of the warehouse )
What activities we must do in the warehouse to ensure proper identification & tracing of the material
How can we reduce our labour cost in the warehouse. What mechanization we can do in our warehouse?
How can we ensure better material movement inside the warehouse?
ELEMENTS OF SCM
Logistics Management 'Logistics is the process of strategically managing the procurement, movement and storage of materials (and related information flows) through the organisation and its marketing channels
Objectives of Transport Management
Transportation/logistics as a competitive differentiator.
Time to market
CARRIER SELECTION OUTSOURCING Vs. OWN VEHICLE VEHICLE TYPE ( SIZE ) CUSTOMERS PER VEHICLE & TRIPS PER VEHICLE ( ROUTING )
Carrier Selection and Routing
The practical meaning of the 4 C’s of selecting transportation services
Your responsibility is to assist in defining Right Product in the Right Quantity from the Right Source to the Right Destination in the Right Condition at the Right Time for the Right Cost.
Carrier makes investment to maximize return on assets.
For this he has to consider following costs –
Vehicle-Related Cost : This is fixed cost in short term incurred for purchasing or leasing the carrier.
Fixed Operating Cost : This includes any cost associated with terminals, Road Tax, and labor.
Trip-Related Cost : This includes the price of labor and fuel incurred for each trip independent of the quantity transported and depends on the length and duration of the trip.
Quantity Related cost : This includes loading / Unloading cost and part of fuel cost that varies with the quantity being transported.
Overhead cost : This includes, planning & scheduling cost, IT cost.
Routing & Scheduling In Transportation This refers to the selection of customers to be visited by the particular vehicle and the sequence in which they will be visited. For the companies to be successful, they have to do the routing and scheduling in such a way that they reduce the cost of transportation at the same time make the deliveries fast and meet the promised level of responsiveness to the customers. To achieve this, the objective is to minimize cost by Decreasing the number of vehicles, Reducing total distance traveled, Reducing total travel time & Reducing service failures ( delays )
Routing & Scheduling In Transportation
The objective of the supplier is to
Pick the items needed and to load them on trucks for delivery
Decide which vehicle will deliver to which customers & the route that each truck will take.
Ensure that no vehicle is overloaded at the same time try to load all the vehicles fully.
To do this, the technique that can be used is Savings Matrix Method.
Assign Customers to Vehicles or Routes Select the route with highest savings and combine the 2 routes if the total load is less than the permitted load. Keep combining this way to get the route plan. Sequence Customers within Routes The goal here is to minimize the distance each vehicle must travel. The procedure for this is as follows: Farthest Insert : Given, a vehicle trip for each customer, evaluate the minimum increase in length if this customer is inserted at a suitable point in the trip and insert the customer with the largest minimum increase to obtain the new trip. Nearest Insert : Given, a vehicle trip for each customer, evaluate the minimum increase in length if this customer is inserted at a suitable point in the trip and insert the customer with the smallest minimum increase to obtain the new trip.
Routing & Scheduling Exercise
Learnings & Assignments
Is selection of vehicle critical for the business? How to select a vehicle for transportation?
How to decide sequence for delivery of goods to the retailers?
Is Outsourcing of transport vehicles more beneficial for us or Having own vehicles more beneficial for us?
SCM Key Performance Measures FMFO Deliveries during the month FMFO Adherence % ge = ---------------------------------------------------------- Total deliveries made during the month. Orders Delivered On Time & Full Commitment % ge ( OTIF ) = ----------------------------------------------------- Orders Received in a month Transport cost + Labour Cost + storage cost SCM COST / TN = --------------------------------------------------------------------- Total sales
Supply Chain Model Foundation Plan Make Deliver Source Utility SCM Process categorized according to the Supply-Chain Council’s, Supply-Chain Operations Reference (SCOR) model
Factors contributing to the Bullwhip Effect:
Lead Time Variability
Methods intended to reduce uncertainty, variability, and lead time:
Vendor Managed Inventory (VMI)
Just In Time replenishment (JIT)
Demand Signal Processing (frequent updates of forecasts; only next echelon orders considered)
Order Batching (to realise logistic Economies of scale + Reducing order processing costs)