Graphique vs. diagramme
In French, the words graphique and diagramme are both used to translate the English concepts of a chart or data visualization, but they apply to different types of visuals. A graphique is typically used for numerical data plotted along axes to show continuous trends, while a diagramme is a broader term used for schematic representations utilizing geometric shapes to show proportions, structures, or processes.
Graphique
A graphique refers to a mathematical or statistical graph, typically plotted on a coordinate system with axes (such as X and Y), used to display continuous data, trends over time, or mathematical functions.
Le graphique montre l'évolution de nos ventes sur cinq ans.
(The chart shows the evolution of our sales over five years.)
Vous devez tracer un graphique pour représenter cette fonction mathématique.
(You must draw a graph to represent this mathematical function.)
Ce graphique boursier indique une forte baisse des actions.
(This stock market chart indicates a sharp drop in shares.)
Le graphique linéaire illustre les variations de température du mois.
(The line chart illustrates the temperature variations for the month.)
L'analyste a inséré un graphique des bénéfices dans son rapport financier.
(The analyst inserted a profit chart into his financial report.)
Nous pouvons observer une tendance à la hausse évidente sur ce graphique.
(We can observe an obvious upward trend on this chart.)
Diagramme
A diagramme refers to a structural chart or diagram that uses geometric shapes to represent categories, parts of a whole, networks, or workflows, such as pie charts, bar charts, and flowcharts.
Le diagramme circulaire montre la répartition du budget annuel.
(The pie chart shows the distribution of the annual budget.)
Il a conçu un diagramme de flux pour illustrer le processus de décision.
(He designed a flowchart to illustrate the decision-making process.)
Les résultats de l'enquête sont résumés dans ce diagramme en bâtons.
(The survey results are summarized in this bar chart.)
Un diagramme de Venn est très utile pour comparer ces différents concepts.
(A Venn diagram is very useful for comparing these different concepts.)
Le chef de projet a mis à jour le diagramme de Gantt ce matin.
(The project manager updated the Gantt chart this morning.)
L'ingénieur a présenté un diagramme de l'architecture du système.
(The engineer presented a diagram of the system architecture.)
Summary
To summarize, use a graphique when dealing with coordinate axes, mathematical curves, and continuous numerical trends. Opt for a diagramme when you are visualizing categories, percentages, or logical structures using geometric shapes, such as in a pie chart, bar chart, or flowchart.