MKTG1001 · Marketing Principles
New Product Development & the Product Life Cycle
New Product Development & the Product Life Cycle covers how firms create and launch new products and how products age. It teaches the five categories of new product, the eight-step NPD process, concept boards and concept testing, prototypes and test marketing, and the product life cycle (PLC) with the distinct marketing objective and 4P strategy at each stage.
This is Week 8 (Chapter 8) and sits squarely in the examinable final scope. It is a strong Part B essay area: questions ask you to walk a new product through the NPD funnel or to recommend stage-appropriate strategies along the PLC. The two figures worth memorising are the 8-step NPD process and the PLC sales/profit curve.
What this chapter covers
- 01The 5 categories of new products: new-to-the-world, line extensions, product improvements, new-to-the-firm, repositioning
- 02The 8-step NPD process: idea generation → idea screening → concept development & testing → marketing strategy → business analysis → product development → test marketing → commercialisation
- 03Idea screening = the real-win-worth test (is it real? can we win? is it worth doing?)
- 04Concept board elements (heading, consumer problem, benefit, reason to believe, selling idea, price/availability, visuals) and concept testing
- 05Prototypes (comprehensive vs focused) and product-use tests (monadic / sequential-monadic / triangular)
- 06Test marketing: simulated vs controlled
- 07The Product Life Cycle stages: product development → introduction → growth → maturity → decline
- 08Stage-by-stage strategy: introduction (skimming/penetration, build trial) · growth · maturity (defend share, brand-switching) · decline (milk or phase out)
Extended-answer (Part B style): walk a product through the NPD process
- 3 marksMove 1 — outline the theory. NPD has eight steps: idea generation → idea screening → concept development & testing → marketing strategy development → business analysis → product development → test marketing → commercialisation. Screening kills weak ideas early using the real-win-worth test.
- 3 marksMove 2 — apply the early steps. Idea generation: brainstorm from consumer trends (high-protein snacking). Screening: drop ideas failing real-win-worth. Concept development & testing: write a concept board (problem, benefit, reason to believe) and test it with target consumers for appeal and purchase intent.
- 2 marksMove 3 — apply the middle and late steps. Marketing strategy: define the target, positioning and planned mix. Business analysis: forecast sales, costs and profit. Product development: build a prototype and run product-use tests. Test marketing: trial it in a limited region (simulated or controlled) before full launch.
- 2 marksMove 4 — conclude. Commercialisation rolls the product out fully. Each gate can kill the idea, which is the point — NPD spends little early and a lot late, so killing weak ideas at screening or business analysis protects the budget. The limitation is that testing adds time and can tip off competitors.
Key terms
- New-product categories
- The five types of 'new' product: new-to-the-world (truly novel), line extensions (added items in an existing line), product improvements (revised versions), new-to-the-firm (a category new to this company but not the world) and repositionings (existing products aimed at new segments). Each carries a different level of risk.
- NPD process (8 steps)
- Idea generation, idea screening, concept development and testing, marketing strategy development, business analysis, product development, test marketing and commercialisation. It is a narrowing funnel designed to kill weak ideas cheaply before heavy investment.
- Idea screening (real-win-worth)
- The second NPD step, filtering ideas against three questions: is it Real (genuine need and feasible product)? Can we Win (competitive advantage and resources)? Is it Worth doing (profit and strategic fit)? Ideas failing the test are dropped early.
- Concept testing
- Testing a developed product concept — usually via a concept board (heading, consumer problem, benefit statement, reason to believe, selling idea, price/availability, visuals) — with target consumers to gauge appeal, likely trial and purchase intent before the product is built.
- Test marketing
- Launching the product and its proposed marketing program in a limited, realistic setting before full rollout, to validate demand and the plan. It can be simulated (lab/store simulations) or controlled (real but limited markets); it reduces launch risk but adds time and can alert competitors.
- Product Life Cycle (PLC)
- The path of a product's sales and profits over time through five stages — product development, introduction, growth, maturity and decline — each with characteristic costs, customers and competitors, and each calling for a different marketing objective and 4P strategy.
New Product Development & the Product Life Cycle FAQ
What are the eight steps of the new-product-development process?
Idea generation, idea screening, concept development and testing, marketing strategy development, business analysis, product development, test marketing and commercialisation. It is deliberately a funnel: lots of ideas enter, most are killed early at screening (the real-win-worth test) or at business analysis, and only the strongest survive to the costly development and launch stages.
What is a concept board and what goes on it?
A concept board is a one-page presentation of a product concept used in concept testing. It typically includes a concept heading, the consumer problem being solved, the benefit statement, the reason to believe, the selling idea, basic sizing/price/availability, and concept visuals. You show it to target consumers and measure their appeal, trial and purchase intent before committing to building the product.
What are the stages of the Product Life Cycle and how does strategy change?
Product development (the pre-launch NPD phase, sales zero and costs negative), introduction (slow sales, high cost per customer, build awareness and trial — often skimming or penetration pricing), growth (rising sales and profit, build preference and widen distribution), maturity (peak sales, defend share with brand-switching promotions and product/feature tweaks) and decline (falling sales — milk the product, harvest or phase it out). Each stage calls for a different objective and 4P emphasis.
Why does the NPD process kill so many ideas early?
Because spending rises steeply through the funnel: idea generation and screening are cheap, but product development, test marketing and commercialisation are expensive. Screening (real-win-worth) and business analysis exist to drop weak ideas before that money is committed. Killing an idea at step two costs almost nothing; discovering it should have been killed after a national launch is ruinous — so a high attrition rate early is a sign the process is working.
Exam move
Memorise the eight NPD steps in order and be able to point to the kill gates (idea screening's real-win-worth test, and business analysis). Practise drawing the PLC sales/profit curve and reciting the marketing objective plus 4P emphasis for each stage — introduction (build trial, skimming/penetration), growth, maturity (defend share, brand-switching), decline (milk or phase out). Keep the five new-product categories and the concept-board elements as supporting MCQ vocabulary. In a Part B answer, narrate the process or the life cycle and finish by noting that testing reduces risk but costs time and can warn competitors.
