Week 2 | Session 3: Product Segmentation, SC Strategy Matching & Push-Pull Framework

Course: Supply Chain Digitization

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Recap & Session Flow

Note

Sessions 1 & 2 covered: SC challenges → the need for segmentation → the seven types of segmentation (Inventory / Demand / Value Chain / Channel / Geographic / Product / Customer).

Critical rule: Never use one segmentation type alone — always apply a combination.

Segmentation defines the roles of all six SC drivers: Facilities, Transportation, Inventory, Sourcing, Pricing, and Information.

This session: Product Segmentation → matching to the right SC type → Push / Pull strategy → the Push-Pull Boundary.

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Central Question — What is the Right SC for a Given Product?

Two inputs must be understood before the SC strategy can be determined:

1. The type and nature of the product flowing through the SC
2. The priority / competitive strategy of the SC

Together, these determine whether the SC should be Efficient or Responsive, and whether it should operate on a Push or Pull basis.

Note

The product segmentation framework used in this session: Functional Products vs. Innovative Products.

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Product Segmentation — Functional vs. Innovative

Functional Products

Efficient SC → Push

• Demand: Stable, constant, low uncertainty
• Product Life Cycle: Long
• Lead Time: Longer — focus is on consolidation, coordination, and cost
• Average Stockout Rate: Low — sufficient inventory always maintained
• Product Variety: Low — same products used repeatedly, minimal variation
• SC Focus: Cost minimisation

Tip

Examples: Steel — standard product, stable demand, long life cycle. Everyday household products — stable, consistent demand throughout the year.

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Innovative Products

Responsive SC → Pull

• Demand: Volatile, uncertain, unpredictable
• Product Life Cycle: Short — driven by new technology, new materials, and quality improvements
• Lead Time: Short — product must be available as soon as demand arises
• Average Stockout Rate: High — high demand uncertainty = higher stockout risk
• Product Variety: High — companies must offer more variety to remain competitive
• SC Focus: Flexibility and responsiveness

Tip

Examples: Mobile phones — frequent new models, shrinking time gap between launches, shorter product life cycles. High-technology consumer electronics — demand spikes at launch then declines sharply.

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Side-by-Side Comparison

Dimension	Functional Product	Innovative Product
Demand	Stable	Volatile / Uncertain
Life Cycle	Long	Short
Lead Time	Long	Short
Stockout Risk	Low	High
Product Variety	Low	High
SC Focus	Cost	Flexibility / Responsiveness
SC Type	Efficient	Responsive
Strategy	Push	Pull

Note

★ Key Takeaway: Functional = long PLC, stable demand, cost-focused → Efficient SC. Innovative = short PLC, volatile demand, responsiveness-focused → Responsive SC.

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Matching Product Type to SC Strategy

Functional Product → Efficient SC

Parameter	Detail
Demand nature	Stable → no need for high flexibility
Production strategy	Forecast-driven
Lead time	Long — acceptable because demand is predictable
Inventory level	Low
Goal	Make product available at minimum cost
SC type	Efficient Supply Chain
Strategy	PUSH

Innovative Product → Responsive SC

Parameter	Detail
Demand nature	Volatile → requires high flexibility
Production strategy	Demand-driven (not forecast-driven)
Lead time	Short — customer expects immediate availability
Inventory level	High
Goal	Fulfil demand on a timely basis; manage uncertainty
SC type	Responsive Supply Chain
Strategy	PULL

Note

★ Core match: Functional → Efficient SC → Push | Innovative → Responsive SC → Pull

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Push Strategy

Forecast-Driven

Note

Definition: All SC processes are forecast-driven. Goods are produced and pushed through the supply chain based on demand predictions — before actual customer orders are received.

Flow: Production → Distribution → Retail (all based on forecast)

Characteristics

Characteristic	Detail
Forecast-driven	All decisions based on predicted demand
High volume / Mass production	Economies of scale are the goal
Inventory accumulation	Stock is built up in anticipation of demand
Low customisation	Standard products only
High initial investment	Production infrastructure sized for volume

Challenges

• Limited scope to handle demand variability
• If products are not sold → carried for long periods → inventory obsolescence risk
• Low responsiveness to sudden, unanticipated demand changes

Best Used When

• Demand is stable and predictable
• Product is functional with a long life cycle
• The primary goal is cost efficiency

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Pull Strategy

Demand-Driven

Note

Definition: All SC functions — production and distribution — are driven by actual customer demand. Goods are manufactured only after a real demand signal or order is received.

Flow: Customer Demand → Production → Distribution (demand triggers everything)

Characteristics

Characteristic	Detail
Demand-driven	All decisions triggered by actual orders
High customisation	Responds to specific customer needs
Reduced inventory	No excess stock built in anticipation
High responsiveness	Reacts quickly to actual demand signals
Low obsolescence risk	Nothing produced without confirmed demand
Efficient resource utilisation	Capacity is used only when required

Challenges

• Lead time management — critical and difficult; customers may have low tolerance for wait time
• Coordination complexity across partners
• Demand remains uncertain, making capacity planning harder
• Production availability constraints — capacity may limit responsiveness

Best Used When

• Demand is uncertain or volatile
• Product is innovative with a short life cycle
• The primary goal is flexibility and responsiveness

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Push-Pull Combination — Hybrid Strategy

Real-World Standard

Note

Reality in practice: Pure push or pure pull rarely exists in isolation. Most real-world supply chains use a combination of both strategies, separated by a Push-Pull Boundary that divides the SC into two distinct zones:

• Zone 1 — Upstream (Push): The low-uncertainty part of the SC — production and movement based on forecasts
• Zone 2 — Downstream (Pull): The high-uncertainty or customisation part of the SC — triggered by actual customer demand

The Push-Pull Boundary — Definition

Note

The Push-Pull Boundary is the point in the supply chain that separates the push zone from the pull zone.

• It can exist between any two players in the SC: Supplier ↔ Manufacturer ↔ Distributor ↔ Customer
• Its position depends on the level of customisation required
• Boundary closer to the customer → less complexity in the SC
• Boundary closer to the supplier → more customisation → higher complexity

Tool to manage the boundary: Carry buffer inventory at the players on either side of the boundary to absorb demand fluctuations and enable downstream customisation without disrupting upstream operations.

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Push-Pull Example 1 — Vehicle Colour Customisation

Boundary at Distributor

Setup: A company offers the same vehicle type in different colours and accessories depending on customer choice.

Push Zone — Supplier → Manufacturer → Distributor

• Vehicle type is standard and constant across all orders
• Suppliers: know exactly which components are needed → keep raw materials ready based on forecast
• Manufacturing: demand is forecasted → assembly line runs on push strategy
• Distributor: receives the standard vehicle → holds it in one base configuration

Push-Pull Boundary — At the Distributor

The customer communicates their preferences — colour, seat type, accessories — to the distributor. This order triggers the switch to pull strategy.

Pull Zone — Distributor → Customer

• Distributor customises the vehicle per customer demand (paint, add-on components)
• Delivery is made after customisation is complete
• No customisation occurs upstream — only at the distributor level

Note

★ Takeaway: Standardise upstream with push → customise downstream with pull. Boundary sits at the distributor — the last player before the customer’s specific requirements enter the chain.

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Push-Pull Example 2 — Component-Level Customisation (Automobiles)

Boundary between Supplier & Manufacturer

Setup: An automobile company offers different vehicle variants customised per customer order. Customisation here is at the component and raw material level — not just cosmetic.

Pull Zone — Suppliers

• Suppliers must deliver specific components as per each customer order
• Suppliers operate on a pull strategy — they produce or deliver only what is explicitly required

Push-Pull Boundary — Between Supplier and Manufacturer

The boundary sits further upstream here because the variability enters the chain at the component level.

Push Zone — Manufacturing → Distributor → Customer

• Once the specified components are received, the assembly process is standard
• Manufacturing knows exactly how to assemble → follows a push strategy
• Distributor receives the finished vehicle → standard delivery schedule → pushes to the customer
• No special requirements at the distributor or delivery stage

Note

★ Takeaway: When customisation exists at the component level, the pull zone extends all the way back to the suppliers. Post-manufacturing, once assembly is standard, the chain reverts to push. Boundary = between supplier and manufacturing.

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Managing the Push-Pull Boundary

Buffer Inventory

Carry buffer inventory at the players on either side of the boundary. The buffer absorbs demand fluctuations and enables downstream customisation without disrupting upstream forecast-driven operations.

Postponement Strategy

Note

Postponement = deliberately delaying customisation or product differentiation as late as possible in the supply chain.

• Standard product is moved upstream via push → customisation is performed at the last possible point (the pull zone)
• This ensures flexibility in the downstream while preserving cost efficiency upstream
• Postponement directly informs where to position the Push-Pull Boundary

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Session Summary — The Full Strategic Chain

1. Product Segmentation → Functional vs. Innovative
2. SC Type Matching → Functional → Efficient SC | Innovative → Responsive SC
3. Strategy Matching → Efficient SC → Push | Responsive SC → Pull
4. Reality → Hybrid Push-Pull separated by a Push-Pull Boundary
5. Boundary Position → determined by where customisation / uncertainty begins in the SC
6. Boundary Management → Buffer inventory + Postponement strategy

Tip

★ Exam Tip: Always link the full chain in any exam answer:

Product Type → SC Type → Push / Pull → Boundary Location → Management Tool

The Push-Pull boundary can sit between any two SC players — its position depends entirely on where uncertainty or customisation first enters the chain.