Stage/gate model for new product development

The stage/gate model manages corporate product development as a sequence of work stages separated by decision meetings. Within a stage, a cross-functional team develops evidence; at a gate, leaders decide whether the project merits further investment. The process is intended both to resource strong ideas and to stop weak ones before they consume the full development budget.

When to use it

• Introduce consistency and transparency into an informal product-development process.

• Direct scarce people and capital toward high-potential ideas while ending projects whose evidence is weak.

• Create a portfolio-level view of how many initiatives occupy each part of the pipeline.

Origins

Phased investment has a long history. Chemical and industrial engineering used sequenced development methods in the 1950s, NASA operated phased reviews in the 1960s, venture capital evolved funding rounds and pharmaceutical development established pre-clinical work followed by four clinical phases. Robert G. Cooper converted comparable principles into a formal method for new-product development, introducing Stage-Gate in a 1986 article and later in Winning at New Products. The framework became widely adopted, while design thinking and other iterative approaches later challenged rigid implementations.

What it is

Stage/gate replaces ad hoc sponsorship with a repeatable idea-to-launch route. Before such systems, projects could win funding because their advocate had organisational power, while the portfolio as a whole lacked coherence. The model defines activities and deliverables for each stage. A gate meeting then reviews progress against explicit criteria and decides which projects go forward, which require more work and which should end. This governance gives senior leaders visibility and control without requiring them to perform the project work.

How to use it

The version described here contains five stages and five gates, with discovery before the formal development route:

• Discovery: generate possible product or service ideas through informal exploration. The first gate, the idea screen, makes a light initial judgement about strategic fit and promise.

• Scoping: conduct a rapid preliminary investigation, usually no more than a couple of weeks. Examine comparable offers, initial technical feasibility and early customer reactions.

• Build the business case: investigate the opportunity in depth. Marketing contributors test customer interest, technical specialists examine feasibility and the team prepares the plan and rationale for investment.

• Development: design and create the offer, perform initial product tests and prepare production and market-launch plans.

• Testing and validation: conduct extensive tests in the market, research-and-development environment and manufacturing plant.

Launch begins full production, marketing and selling. Follow it with a post-launch review to determine whether the product meets quality and commercial expectations and to capture learning.

A well-run process creates discipline without requiring functions to work in sequence. Marketing, technical, operational and commercial contributors collaborate early, avoiding the traditional hand-off from research to development and then to marketing. Portfolio visibility also helps executives spot overcrowding and gaps, accelerate selected projects or acquire a capability the pipeline lacks.

The same structure can become counterproductive when formalisation grows faster than learning. Heavy evidence demands may slow the entire pipeline and favour conventional ideas that fit reviewers’ expectations. The most original concepts are often uncertain at the outset and can be killed precisely because they do not resemble previous successes.

Top practical tip

Periodically redesign the process before it calcifies. Merge stages, rotate gatekeepers or create an accelerated route for unusually strong evidence while preserving clear accountability.

Top pitfall

Do not apply familiar-product criteria to genuinely disruptive ideas. Separate exploratory funding vehicles—such as Shell’s GameChanger or Reuters’ former Greenhouse fund—can give high-risk concepts enough support to produce evidence before a conventional gate review.

Further reading

• Cooper, R.G. (nineteen ninety). “Stage-Gate Systems: A New Tool for Managing New Products.” Business Horizons.
• Cooper, R.G. (twenty seventeen). Winning at New Products. Basic Books.