Value chain analysis
Disaggregate a business into linked primary and support activities, then check cost boundaries and possible sources of customer value.
Use a value chain when costs or customer experiences need to be traced to activities. This guide focuses on primary activities and records support separately. Adapt activities to the service rather than copying a department list.
A business and period, activity records, value clues, compatible cost records, allocation rules and handoffs.
An activity-and-link map, a bounded cost reconciliation and hypotheses for further investigation.
On this page
How to use it
- Define the business, need, period and primary activities.
- Decompose activities and check infrastructure, HR, technology and procurement support.
- Record links, value clues and problems, separating observation from explanation.
- Reconcile compatible costs with allocation and exclusions, avoiding duplication.
- Propose a checkable change and examine effects across activities.
Keep its limits in mind
A value chain is not a supplier list, organization chart or fixed workflow. Separate support and count costs once. Disclose allocation assumptions and exclusions. High cost does not establish value; deleting work does not guarantee improvement. A selected revenue-minus-cost remainder is not net profit, and undisclosed rival costs stay unknown.
Reconciling costs for 100 lunches without claiming net profit
Fictional teaching example: Alder Lunch is reviewing its direction. S3 contains three provider cards (E1, Oct 5–9, 2026), Alder's 100-order ledger (E2), ratings by three fictional respondents (E3), capability records (E4), and supply/entry questions (E5). These are synthetic records, not market research. Proposed actions have not been carried out.
On a small screen, scroll across the diagram to read it.
Map links: The five primary activities are an analytical arrangement, not an imposed operating sequence. Orders, preparation, collection and follow-up exchange information. Support is recorded separately.
Reconcile the boundary: The selected primary costs total CNY1750. Adding the CNY150 support allocation once gives CNY1900. Against CNY2600 receipts, the remainder is CNY700, or CNY7 per order. Full premises, depreciation, taxes and other period costs are outside this calculation.
Result: The ledger correction does not establish net profit or prove the value of each activity. Eight closure records out of ten issues do not demonstrate savings. Check handoff links before deleting follow-up work.
Primary1750 + support150 = CNY1900; 2600-1900=700. The remainder excludes full period costs and is not net profit or measured savings.
Next step: Operations and finance roles should confirm mutually exclusive categories, support allocation and exclusions, then inspect exception handoffs.
Three cases where the activity map needs better records
First, pause when the boundary mixes businesses, periods, or units. A supplier invoice, a monthly software bill, and one week of labor cannot simply be added as if they describe the same service window. Establish which records belong to the chosen orders and disclose any allocation. If the allocation is unknown, keep it unresolved rather than forcing the total to reconcile.
Second, do not use a department list as evidence of customer value. One department may perform several activities, and one activity may require several teams. Trace what information or material moves between them. An expensive activity may be necessary, wasteful, or poorly recorded; the amount alone cannot distinguish these explanations.
Third, stop before treating a removed activity as a saving. Follow-up can reveal a handoff defect that would otherwise create work elsewhere. Check the effect on linked activities and the customer task before proposing elimination. Estimated reductions, released capacity, actual cash savings, and service outcomes need separate evidence.
Choose the unit of analysis before choosing a diagram
The value chain asks how linked activities contribute to an offering and its cost structure. Other methods answer narrower questions. Use the question and available records to choose the next output; completing every diagram is unnecessary.
| Question and input | Method | Output and boundary |
|---|---|---|
| Activity records, costs, support allocation and value clues | Value chain analysis | Linked activity analysis; a partial ledger is not full profitability. |
| A specific handoff and its exceptions | Business process flowchart | Sequence, decisions and exceptions; not an economic account. |
| Repeated work with comparable effort records | ECRS | Changes to investigate; no automatic saving. |
| A resource with evidence about competitors and organization | VRIO analysis | Condition-by-condition assessment; no inference from high spend. |
Reconcile Alder’s lunch ledger and inspect one link
The complete fictional E2 packet covers 100 Alder Lunch orders in Harbor during October 5–9, 2026. Each lunch is CNY26 and receipts total CNY2600. Selected costs are materials and boxes 800, preparation labor 600, pickup handoff labor 200, menu and order labor 100, and follow-up labor 50. Coordination and software are allocated another CNY150 once. Full premises, depreciation, taxes, and other period costs are excluded. This is a teaching ledger, not audited accounts.
The five primary categories total CNY1750; adding support once gives CNY1900. The CNY700 remainder divided by 100 orders is CNY7 per order under this boundary. It is not net profit, and adding the support allocation to every primary activity would count the same amount repeatedly. No rival cost ledger is supplied.
The service record says eight of ten issues have closure records. It does not establish how many distinct orders had issues, how quickly they were resolved, or whether follow-up reduced cost. The proposed investigation follows order IDs from menu and ordering through preparation, collection, and exception follow-up. The table turns links into questions without inventing a defect or a successful change.
| Recorded activity or link | What can be established | Next check and unresolved claim |
|---|---|---|
| Materials 800 → preparation labor 600 | Two separate cost categories, not a measure of quality | Check ingredient and portion records; waste and value remain unknown. |
| Menu/order labor 100 → pickup labor 200 | Order IDs can connect the records | Inspect whether the information needed at pickup is present; no missing-ID rate supplied. |
| Follow-up labor 50; eight closure records from ten issues | Closure-record coverage is 80% of issues | Check the other two records and handoff trail; no speed or saving claim. |
| Primary 1750 + support 150 = 1900 | Selected cost boundary reconciles once | Confirm allocation and exclusions; receipts minus these costs is not net profit. |
Review reconciliation and service effects separately
Operations and finance should first confirm category definitions, the period, and the support allocation. Preserve the raw entries when correcting a classification. Moving an amount between categories changes the explanation, not necessarily total spending. A missing invoice or excluded cost stays visible until its treatment is agreed.
For the proposed handoff check, retain the order or issue reference, information available at each activity, the observed exception, and any explanation requiring verification. Record who can review the material and what further evidence is needed. The packet contains no completed investigation, approved redesign, or measured savings.
If a change is later authorized, define a comparable review window and distinguish implementation effort, continuing effort, cash expenditure, closure records, and customer feedback. Check whether work merely moved to preparation or collection. Keep unresolved issues in the denominator rather than counting only completed cases.
The decision may be to clarify a record, investigate a link, or leave the activity unchanged. Explain which evidence would justify reconsideration. A reconciled ledger makes the discussion more traceable, but it does not prove a competitive advantage or establish that the most expensive activity should be cut.
Check your work
- Primary, support and links are clear without imposing a fixed workflow.
- Cost units, allocation and exclusions reconcile without double counting.
- Cost is not value, a proposal is not savings, and a partial remainder is not net profit.
Framework references
References explain the framework and its scope; they do not validate the fictional example's results.
Put the framework to work
Copy the outline and add your question, evidence, and open questions.