# What is a driver tree? > **Driver tree:** A driver tree breaks a business metric into the measurable drivers that produce it, linked by arithmetic so each number can be recalculated from the ones below it. - Source: https://ai-presentations.com/glossary/driver-tree/ - Updated: 21 October 2026 - Language: English - German version: https://ai-presentations.com/de/glossar/treiberbaum/ Also called: value driver tree, KPI tree, metric tree A **driver tree** shows how a headline metric is built. The metric sits at the top or on the left. Below it are the factors that multiply, add or divide to produce it. Because every link is arithmetic, anyone can recompute a number from the ones below it, and anyone can see which driver to move to change the result. ## A worked example A regional parcel carrier reports quarterly revenue of €48.6m. As a driver tree: - **Revenue: €48.6m** = shipments × revenue per shipment - **Shipments: 4.05m** = active customers × shipments per customer - Active customers: 2,700 - Shipments per customer: 1,500 - **Revenue per shipment: €12.00** = base price + surcharges - Base price: €10.20 - Surcharges: €1.80 The tree closes: 2,700 × 1,500 = 4.05m shipments, €10.20 + €1.80 = €12.00, and 4.05m × €12.00 = €48.6m. Now it answers questions. One extra cent per shipment is worth €40,500 a quarter. One hundred more active customers are worth 100 × 1,500 × €12.00 = €1.8m. ## How to build a driver tree 1. **Start with one metric the audience already tracks.** 2. **Split it with a formula, not a list of ideas.** Multiply when drivers scale each other (volume × price). Add when parts make up a total (regions, products). 3. **Use your reporting definitions,** so each number matches its source. 4. **Stop at drivers that someone owns** and can change. "Market conditions" is not a driver you can act on. 5. **Label each box** with its current value and a comparison: the target or the change against last period. ## Driver tree or issue tree? An [issue tree](https://ai-presentations.com/glossary/issue-tree/) is a tree of questions. A driver tree is a tree of numbers. Draw the issue tree first when you do not yet know what to measure, then switch to a driver tree to put numbers on the branches. ## Driver trees on slides The tree is the analysis; the slide usually shows its result. A common form is a bridge, also called a [waterfall chart](https://ai-presentations.com/glossary/waterfall-chart/), in which each bar is one driver of the change. The same logic works as a bridge for EBITDA. On the slide below EBITDA moves from €4.8m to €6.9m: 4.8 + 1.6 + 0.7 + 1.3 − 0.6 − 0.9 = 6.9. *A bridge is a driver tree in motion: each bar is one driver, and the bars add up to the change. Example with invented numbers.* 5. Margin expansion came mostly from volume and better network utilization ## Typical mistakes - Drivers that overlap, so one effect is counted twice. - A formula that does not close: the boxes below do not produce the box above. - Stopping at drivers nobody controls. - A tree with more levels than the audience can follow. - Numbers without a comparison. A value of 4.05m shipments says little without last quarter or a target; see [KPI](https://ai-presentations.com/glossary/kpi/). ## Frequently asked questions ### What is the difference between a driver tree and an issue tree? A driver tree is made of numbers: every box is a formula of the boxes below it, so you can calculate with it. An issue tree is made of questions and stays qualitative. Start with the issue tree when you do not know yet what to measure. ### How many levels should a driver tree have? Go down until you reach drivers that someone owns and can change, usually three or four levels. A deeper tree adds precision nobody can act on. ### Are driver trees only for revenue and profit? No. Any metric that is built from other metrics works: delivery time, customer churn, cash conversion or energy cost per unit. The test is that the boxes below produce the box above. ### How do I show a driver tree in a presentation? Show the tree itself on one slide if the audience needs to see how the metric is built. More often you show its result: a bridge chart that splits the change in the headline metric into its drivers, one bar per driver. ## Related pages - [Issue tree](https://ai-presentations.com/glossary/issue-tree/): An issue tree splits one key question into sub-questions, branch by branch, so every part can be analyzed and nothing is missed. Includes a worked example. - [KPI](https://ai-presentations.com/glossary/kpi/): A KPI (key performance indicator) is a measurable value that shows progress toward a business goal. Learn the definition, examples and how to present KPIs. - [Waterfall chart](https://ai-presentations.com/glossary/waterfall-chart/): A waterfall chart shows how a start value becomes an end value through a series of increases and decreases. Definition, how to read it and typical mistakes. - [MECE](https://ai-presentations.com/glossary/mece/): MECE means mutually exclusive, collectively exhaustive: a way to split a problem into parts that do not overlap and leave nothing out. With examples. - [Unit economics](https://ai-presentations.com/glossary/unit-economics/): Unit economics show whether one customer earns more than it costs to win and serve. Learn the core metrics, the formulas and a worked example you can copy. - [Board presentation](https://ai-presentations.com/templates/board-presentation/): A board presentation template with the 8 slides a quarterly board meeting needs: summary, KPIs, revenue, EBITDA bridge, initiatives, risks and decisions. --- ai-presentations.com is published by Slaide (https://www.slaide.de), a sole proprietorship run by Nathalie Scholl in Heilbronn, Germany. [How this site is written, checked and corrected](https://ai-presentations.com/editorial-policy/).