Strategic Business Leader · E-business: value chain

Value Network and Electronic Supply Chain Management

Updated 11 October 2026 · Fact-checked

A value network is the set of links between an organisation, its suppliers, partners and customers, where value is created jointly rather than in a single chain. Electronic supply chain management (e-SCM) uses technology to share data and automate flows across that network, including e-procurement. To answer questions, link each technology to cost, speed, quality and risk.

Understand Value Network and Electronic Supply Chain Management

Porter's value chain looks inside one organisation. It splits activities into primary activities (inbound logistics, operations, outbound logistics, marketing and sales, service) and support activities (infrastructure, HR, technology, procurement). The aim is to find where the organisation adds value and where it loses it.

A value network widens the view. No organisation works alone. It buys from suppliers, sells through distributors, works with partners and serves customers who may also be linked to other networks. The value network shows these links and asks how the whole set of relationships can be managed to create more value. The ideas of Johnson, Scholes and Whittington on the value network follow this approach.

Electronic supply chain management (e-SCM) applies information technology to the flow of goods, information and money between network members. Examples are shared inventory data, electronic data interchange (EDI), web portals, extranets and automated ordering. The goal is a supply chain that responds to real demand instead of forecasts.

E-procurement is a main part of e-SCM. It means buying goods and services electronically, using tools such as e-catalogues, e-tendering, e-auctions and e-marketplaces. It cuts the cost and time of each purchase order and gives better data on spending. Risks include system security, supplier resistance, dependence on a few systems and loss of personal supplier relationships.

In the exam, do not just list technologies. Show how they change the value chain and the value network for the scenario company, and weigh benefits against risks. That is where the technical and professional skills marks come from.

Key rules to remember

Value chain activities (Porter): Primary: inbound logistics, operations, outbound logistics, marketing and sales, service. Support: firm infrastructure, HR management, technology development, procurement; Use this as a checklist when asked how e-business changes the organisation's own activities.
Value network idea: Value network = organisation + suppliers + partners + distributors + customers, and the links between them; Stress that value is created across the whole network, not only inside one organisation.
Main e-procurement tools: E-catalogues, e-tendering, e-auctions, e-marketplaces, e-ordering and e-invoicing; Name the tool that fits the scenario instead of writing about e-procurement in general.
Benefit and risk lens: Cost, speed, quality, information, relationships, security and dependence; Use these headings to structure a balanced answer on benefits and risks.

How to solve Value Network and Electronic Supply Chain Management questions

Use this method for any written requirement on value networks, e-procurement or e-SCM.

1Read the requirement and find the verb: explain, assess, advise or recommend. This sets how much evaluation you need.
2Identify the organisation's position in the network: who its suppliers, partners and customers are, and what flows between them.
3Pick the relevant technology from the scenario, such as e-procurement, shared inventory systems or a supplier portal.
4Link it to value. Explain what changes: lower cost, faster cycle times, less stock, better data, closer relationships.
5State the risks and limits: security, supplier readiness, cost of systems, over-reliance and weaker personal relationships.
6Apply points to scenario facts such as industry, size, number of suppliers and current problems. Generic points score low.
7Finish with a clear recommendation or conclusion if the task asks for advice, and note any conditions for success.

Quickest way: Benefit, risk, apply

When to use it: Use when time is short and you must plan a 10 to 15 mark answer in about a minute.

Write three headings: Value created, Risks, Scenario link.
Under Value created, note cost, speed and information benefits.
Under Risks, note security, supplier resistance and dependence.
Add two or three scenario facts to each side.
Write the answer in that order and end with a one-line recommendation.

Common mistakes in Value Network and Electronic Supply Chain Management

Describing the value chain when asked about the value network.
The two models sound alike and students recite Porter's activities from memory.
Fix: State clearly that the network covers links with suppliers, partners and customers outside the firm, then discuss those links.
Listing e-procurement benefits with no risks.
Technology topics feel positive, so students forget the balanced view examiners expect.
Fix: Always give at least two risks, such as security weaknesses and supplier resistance, and say how to reduce them.
Writing generic points that ignore the scenario.
Students learn the theory but do not practise applying it.
Fix: Quote scenario facts, such as the number of suppliers or current stock problems, in every main point.
Treating e-SCM as only buying online.
E-procurement is the most visible part, so it is mistaken for the whole.
Fix: Cover the full flow: demand data, inventory, production, delivery and payment across the network.
Claiming technology always cuts costs.
Students overstate benefits and ignore setup, integration and training costs.
Fix: Say that savings depend on volume, supplier take-up and good implementation, and mention upfront costs.

Worked examples

Example 1

A manufacturer buys many small items from over 200 suppliers using paper orders and phone calls. Orders are slow and often wrong. The board is considering e-procurement. Advise the board on the benefits and risks. (10 marks)

Show the solution

Identify the problem: manual ordering is slow, error-prone and costly per order, with weak data on spend.
Benefits: e-ordering and e-catalogues reduce errors and processing time, so the cost per order falls.
Benefits: electronic records give better data on spending, which supports negotiation and supplier comparison.
Benefits: e-tendering and e-auctions can widen the supplier base and increase price competition.
Risks: some of the 200 suppliers may lack the systems or skills, and may resist the change or drop out.
Risks: security weaknesses, system failure and fraud risk, since payments and data move electronically.
Risks: setup and integration costs, and weaker personal relationships, which matter for critical suppliers.
Recommendation: introduce e-procurement in phases, starting with high-volume, low-value items, and keep personal contact with key suppliers.

Answer: E-procurement should cut order costs, errors and delays and give better spending data. The risks are supplier resistance, security, system costs and weaker relationships. The board should proceed in phases, starting with routine items and strong security controls.

Example 2

Explain how a retailer can use electronic supply chain management to create value across its value network. (8 marks)

Show the solution

Define the network: the retailer, its suppliers, distributors and customers.
Shared data: link point-of-sale data to suppliers so they see real demand and replenish stock quickly.
Result: lower stock levels, fewer stock-outs and less waste, which reduces cost and improves service.
Automated ordering and invoicing: EDI or a supplier portal reduces paperwork and speeds payment cycles.
Customer side: online order tracking and delivery information improve the customer experience.
Collaboration: partners can plan promotions and capacity together, which reduces surprises.
Limit: success needs trust, compatible systems and secure data sharing, and the retailer may become dependent on a few partners.

Answer: E-SCM creates value by sharing real demand data across the network, which cuts stock, waste and delays, lowers transaction costs and improves customer service. It needs trust, compatible systems, strong security and care over dependence on key partners.

Exam tips

Use the word network when the question mentions suppliers, partners or customers. It shows you have spotted the model.
Balance every e-procurement answer with benefits and risks. Examiners reward evaluation.
Tie every point to a scenario fact. Professional skills marks reward commercial awareness.
If asked to advise, give a clear recommendation and state conditions for success, such as phased roll-out and security controls.

Practice questions from E-business: value chain

Value Network and Electronic Supply Chain Management in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Value Network and Electronic Supply Chain Management: frequently asked questions

What is the difference between a value chain and a value network?

The value chain looks at the activities inside one organisation. The value network looks at the relationships between the organisation and its suppliers, partners and customers. Use the network when the question is about external links.

What are the main benefits and risks of e-procurement?

Benefits include lower cost per order, fewer errors, faster processing, better spending data and wider supplier choice. Risks include security threats, supplier resistance, setup costs, system dependence and weaker supplier relationships.

How does e-SCM create value?

It shares information across the network so supply responds to real demand. That can reduce stock, delays and transaction costs, and improve service and collaboration. The gains depend on trust, compatible systems and good security.

Do I need to name specific technologies in the exam?

Naming the right tool helps, for example EDI, an extranet, e-catalogues or e-auctions. You still need to explain the effect on value and apply it to the scenario. A bare list earns few marks.