Programming languages
Idea to product: the working model


| Leading indicators | When to use |
| Positive feedback from qualitative user interviews | During early product concept validation (e.g. prototypes of the user experience) to guide product direction. |
| A/B tests |
When there are two or more possible versions of a product element (e.g., button placement on a mobile app, marketing content that drives call to action) and you want a statistically rich sample of customer feedback. |
| Customer uptake from pilots |
When validating whether the product or service meets the needs of a specific customer segment. The early definition of a pilot should not include all the ‘bells and whistles’ of the full product features, instead it should focus on the key value proposition to the customer. |
| Ratio of hypotheses proven correct/incorrect | To obtain a sense for whether the teams are validating the right opportunity. If the ratio is low (more hypotheses are proving incorrect) this should identify a change in approach, for example, is it time to redefine the value proposition? Look to a longer horizon of future value? (is the market ready for this type of innovation?), validate with a different customer segment? |
| Lagging indicators | When to use it |
| Profit | Evaluating the long-term commercial viability of a product |
| Revenue | Evaluating near-term commercial viability of a product |
| Market Share | Validating share of potential market opportunity |
| Net Promoter Score | Gauge loyalty of customers |
| Customer Lifetime value | Understanding the value a customers have brought to the organization during the relationship (measured by net profit for any given customer). |
Disclaimer: The statements and opinions expressed in this article are those of the author(s) and do not necessarily reflect the positions of Thoughtworks.