Value Chain Analysis — primary and support activities
Value chain analysis on an interactive canvas: the five primary activities that create value and the four support activities that enable them, plus the margin they produce.
A value chain breaks a business into the activities that create value — inbound logistics, operations, outbound logistics, marketing and sales, and service — and the support activities that make them possible, ending in the margin.
Value Chain Analysis — primary and support activities
The interactive FlowJam canvas for this explanation — every lane, row and arrow above is a real QueryChart diagram you can open and edit.
How to read this visual
- Follow the primary row left to right: inbound logistics to operations to outbound logistics to marketing and sales to service.
- Read the support row beneath as the enablers — each supports all of the primary activities, not one.
- End at "Margin": every arrow in the canvas is there to produce the gap between cost and price.
The primary chain
"Inbound logistics" receives and manages inputs, "Operations" transforms them into the product, "Outbound logistics" delivers it, "Marketing and sales" makes buyers aware, and "Service" supports it after the sale. Each box's comment defines what the activity does. The left-to-right arrows are the sequence of value creation, and each link is a place cost or quality can be added or lost.
The support layer
"Firm infrastructure" is leadership, finance and planning; "Human resource management" recruits and trains the people who do the work; "Technology development" is research and tooling; "Procurement" buys the inputs. Their arrows point into the primary row because each one enables every primary activity — the distinction the framework insists on, and the reason they are drawn as a separate band.
The margin
"Margin" is the value created when the customer's willingness to pay exceeds the cost of the chain. The visual places it at the end of both rows because the point of the analysis is exactly this: find where cost accumulates without creating value, or where an activity could create more value for the same cost. That is what makes the value chain a diagnostic rather than a description.
Key relationships and takeaways
- Primary activities create value directly; support activities enable every primary activity.
- The primary chain is a sequence — value is added at each link, and margin is the residue at the end.
- Support activities are drawn beneath, not inside, the chain because they serve all links at once.
- Margin is the diagnosis: the analysis exists to find activities that cost more than they create.
- Every activity is a candidate for either cost reduction or value addition — that is the framework's lever.
When to use this visual
- Analysing where a business's cost or quality problems actually live — in one link of the primary chain or in a support function.
- Comparing two competitors' chains to explain a structural cost or quality advantage.
- Prioritising improvement: an activity that creates no margin is the first candidate for redesign or outsourcing.
How it works
Rename the activities to your business
Replace the generic primary and support activities with your actual functions — your specific logistics partners, your R&D team, your customer success operation.
Score cost and value per link
Add a comment to each activity recording its share of cost and its contribution to value, so the chain becomes a scoring sheet rather than a description.
Draw the weak links
Highlight the activities where cost outruns value by giving them a different shape or a label, and annotate the fix you are considering.
Add the linkages
Connect the support activities to the specific primary links they most enable, with a note on the dependency, since linkage is half of the analysis.
Frequently asked questions
What is value chain analysis?
It is a framework, developed by Michael Porter, that breaks a business into the activities that create value and asks where value is added and where cost accumulates. The primary activities form the direct chain from inputs to customers; the support activities enable them; the margin is what remains. The analysis aims to find activities that can be improved, streamlined or eliminated.
What are the five primary activities of the value chain?
Inbound logistics (receiving and managing inputs), operations (transforming inputs into the product), outbound logistics (delivering the product), marketing and sales (making buyers aware and closing the sale), and service (supporting the product after sale). They form the sequence the visual draws across its top row.
What is the difference between primary and support activities?
Primary activities are directly involved in creating and delivering the product — they are the visible chain of value creation. Support activities enable that chain without appearing in it: firm infrastructure, human resources, technology development and procurement each serve all the primary activities. That is why the visual draws support as a band beneath the chain rather than a link inside it.
How is value chain analysis used to improve a business?
By scoring each activity for its cost and its contribution to value. An activity that costs a lot and creates little is a candidate for redesign, automation or outsourcing; an activity that creates a lot of value cheaply is a strength to build on. The margin box is the whole point — the analysis exists to widen the gap between what customers pay and what the chain costs.
Edit this visual in QueryChart (FlowJam)
Open this exact value chain canvas as your own chart, rename the activities to your business, and score each link.