Teaching:TUW - UE InfoVis WS 2009/10 - Gruppe 11 - Aufgabe 3

Aufgabenstellung

Beschreibung der Aufgabe 3

Zu verbessernde Grafik

---

Positives

• colours show the regions

Critique on the existing graphic

• it is very difficult to interpret
• there is a growth in carbon emissions of 28 % but this is not shown in the graphic
• most of the datas in the circles are not assignable to specific countries
• you can't click on the circles below
• the big dotted circle is expressionless
• you can see the growth in carbon emissions in per cent only at three of the five bigest CO2 producers
• the dimension of the circles is expressionless (sometimes bigger circles for low numbers and smaller circles for high numbers)
• the sum of the numbers from the circles is not the same as the given number of the million tonnes of CO2

Verbesserte Grafik

---

Changes

• sum up the several circles to big regions -> table is more clearly arranged
• remove the given number of the million tonnes of CO2 (-> irrelevant, does not arise from the graphic), the growth in carbon emissions (-> is not shown in the graphic) und "Click of the circles below" (-> misleading)
• bar chart instead of the circles -> table is more clearly arranged
• table with the five top CO2 producers -> you can compare the countries better
• no different colours -> not essential