STP marketing: segmentation with worked examples

What does the STP framework do?

The STP framework turns a broad market into explicit choices about customers and value. Segmentation asks which differences matter, targeting asks whom to prioritise, and positioning asks why that audience should choose the offer.

OpenStax's market segmentation chapter, published in 2023, describes several bases for grouping consumers. Those categories are starting points for investigation, not a requirement to use every available attribute.

Age or location can be relevant, but they may explain less than buying situation, usage need or constraints. A customer purchasing a laptop for frequent travel has a different job from one buying a shared home computer, even when their demographic profiles look similar.

STP should change a decision. If every segment receives the same offer, distribution and message for the same reason, the segmentation may be unnecessarily elaborate.

Why does segmentation need more than personas?

Segmentation needs more than personas because a memorable description is not evidence of a commercially meaningful group. The team must know whether the distinction predicts a different need or response.

An invented persona called “aspirational Ananya” may help a workshop feel concrete. Unless the underlying assumptions are tested, it can also disguise stereotypes as research. Record where the information came from and what remains uncertain.

OpenStax's target-market selection chapter, published in 2023, connects selection with marketing choices. The important step is judging which groups the organisation can serve effectively, not merely describing them.

Positioning then follows. OpenStax's positioning chapter places the offer in relation to the selected audience and alternatives. This is why a positioning statement written before the audience decision often becomes vague.

The examples below are hypothetical teaching examples, not claims about a client, an actual market size or Kanika's past results.

How do you apply STP to a consumer offer?

Apply STP by identifying a meaningful need difference, selecting a feasible audience and translating the choice into the offer. Consider an illustrative prepared-meal business operating in an Indian city.

1. Segment by the eating situation

Possible groups include people needing predictable weekday lunches, households seeking occasional convenience and customers managing particular dietary preferences. These are hypotheses to explore, not proven market segments.

Interview potential buyers about routines, alternatives, delivery constraints and reasons for dissatisfaction. Ask what they currently do, not only whether they like the proposed service. A positive reaction to free samples does not establish willingness to buy regularly.

2. Compare attractiveness and capability

The weekday-lunch group may offer recurring demand, but the business must assess delivery density, menu fatigue and reliability. Occasional household orders may have different basket sizes and operational peaks. Dietary requirements may demand capabilities the kitchen does not yet possess.

Use a simple qualitative assessment with evidence notes. Evaluate need intensity, reachable demand, contribution potential, competition and operational fit. Do not invent precise scores simply because a spreadsheet expects numbers.

3. Choose a priority segment

Suppose the business provisionally prioritises predictable weekday lunches within a limited service area. That choice informs menu design, delivery slots, packaging, ordering and communication.

It also creates exclusions. The business may decline distant orders or highly customised menus while validating its core service. Those boundaries are part of targeting, not signs that the team has forgotten potential customers.

4. Position around a supported benefit

A possible position is dependable weekday meals with clear menus and predictable delivery. The proof would need to come from actual operations, transparent terms and customer experience.

“The healthiest food in India” would require a very different evidential basis and could create regulatory issues. Choose a truthful, specific benefit the business can substantiate, and obtain appropriate review for nutrition or health claims.

5. Test the complete offer

Run a limited service trial with clear terms and a defined review period. Assess repeat usage, fulfilment problems, contribution and reasons for leaving. Do not judge the segment only by initial sign-ups attracted by a discount.

The result may support the choice, reveal a different need or show that the operations cannot yet deliver the position. STP is a learning framework, not a ceremony that permanently fixes the answer.

How does STP differ for a B2B service?

B2B STP must account for the organisation's needs and the different roles in its buying process. Consider a hypothetical inventory-management software provider.

Segmenting only by company size may miss the relevant problem. A distributor with complex stock movement may need something different from a single-location retailer of similar revenue. Existing systems, implementation capacity and purchasing triggers can be more useful distinctions.

Targeting should assess the cost to sell, implement and support the customer, not just contract value. A segment that appears attractive can become unprofitable if every account requires extensive custom work.

Positioning might focus on clearer inventory visibility for a defined operating model. The finance approver may need economic justification, the user may need ease of work, and the technical reviewer may need integration evidence. These are buying roles within the target organisation, not necessarily separate market segments.

Map a shared core promise with role-specific proof. Avoid letting each sales presentation reinvent what the product does. That creates expectations the implementation team may be unable to meet.

Where does STP go wrong in India?

STP goes wrong when broad labels such as “Bharat”, “youth” or “premium customer” replace investigation. Those labels can hide substantial differences in need, language and access.

Geography may affect distribution and service availability, but it should not become a shortcut for judging sophistication or willingness to pay. Ask what the customer is trying to achieve and which constraints are actually present.

Language can be a service requirement as well as a communication preference. If a business targets customers through regional-language advertising, it should consider whether support and important product explanations are equally usable.

Keep segmentation proportionate and respectful. Avoid collecting personal characteristics simply because a data field exists. Use information that has a clear purpose and appropriate handling, and challenge assumptions that could exclude people unfairly.

When should segments be revised?

Revise segments when they stop explaining meaningful differences in needs or commercial outcomes. New products, channels and buying conditions can make old groupings less useful.

In week one, document the current segmentation and its evidence. Compare it with actual sales, support and customer research. Test whether the groupings change a decision before commissioning a large new segmentation study.

Do not constantly rename groups to make the strategy look fresh. Preserve comparability where the underlying needs remain stable, and document changes when the evidence supports a new structure.

Who owns STP decisions?

Marketing should coordinate STP, with leadership approving the commercial focus and product, sales and operations testing feasibility. Research specialists can help avoid biased questions and unsupported generalisations.

Frontline teams need a usable definition of the priority audience. If sales cannot identify a suitable prospect or service cannot understand the promised experience, the segmentation has not yet become operational.

My view

I would keep the initial segmentation simple enough to challenge. A small set of meaningful differences is more useful than a beautiful catalogue of fictional personalities.

The trade-off is nuance. Simpler groups cannot capture every individual variation, so teams should leave room for judgement and exceptions. The purpose is better prioritisation, not pretending every person in a segment is identical.

A segment matters when it changes how you serve the customer.

Start with one meaningful difference

Choose a customer need that appears to require a different offer or experience. Gather evidence for that distinction, assess whether the business can serve it and write the positioning choice it implies.