Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 4

Aufgabenstellung

Beschreibung der Aufgabe 4

Gegebene Daten

Homer Simpson's Trinkverhalten in Abhängigkeit von seinen Lebensumständen

...Visualisierung von Homer's Lebensabschnitten bzw. Ereignissen mit Einfluss auf sein Trinkverhalten (zB.: Kindheit, Pubertät, Arbeitslosigkeit, Beziehungen, Hochzeit, Geburt der Kinder, Liebeskummer, Alltag, etc.) von seiner Geburt bis Jetzt + mögliche Zukunftsszenarien (mind. 3).

• Die Menge folgender Getränke soll für die jeweiligen Lebensumstände ablesbar sein

(ml oder Liter - je nachdem - pro Tag, Monat, Jahr (z.B.: Fokus+Kontext Methoden):

 a) Wasser

 b) Milch

 c) Fruchtsaft

 d) Cola

 e) Kaffee (Würfelzucker?)

 f) Bier

(vereinfacht angenommen, Homer trinkt ausschließlich diese Getränke)

• Die folgenden Werte sollen abhängig von den konsumierten Getränken ablesbar sein:

 1) g oder kg konsumierter Zucker (aus Getränken) + empfohlene Maximaldosis pro Tag, Monat, Jahr 
   (empfohlene Maximaldosis/Tag: 50g; enthaltener Zucker: 10g/100 ml Cola; 10g/100 ml Fruchtsaft; 3g/Würfelzucker).

 2) mg konsumiertes Coffein + empfohlene Maximaldosis pro Tag, Monat, Jahr 
   (empfohlene Maximaldosis/Tag: 600mg; enthaltenes Coffein: 10 mg/100 ml Cola; 80 mg/100 ml Kaffee).

 3) g konsumierter Alkohol + empfohlene Maximaldosis pro Tag, Monat, Jahr 
   (empfohlene Maximaldosis/Tag: 20g; enthaltener Alkohol: 3,6 g/100ml Bier)

• Die Daten sollen zur medizinischen/psychologischen Analyse visualisiert werden.
  
  
• Die bisher erlernten Design-Prinzipien sollen umgesetzt werden (z.B.: Optimierung der Data-ink ratio).
  
  
• Die Mockups sollten zumindest 1) Homer's Leben im Überblick 2) und eine Detailansicht wiedergeben.
  
  
• Alle nicht angeführten Daten können frei erfunden werden.

Links

• InfoVis:Wiki UE Homepage

• UE InfoVis

• Gruppe 10

Description of area of use, data, users, tasks and goals

Analysis of the Area of Use

The visualization is to be used in medical/psychological analysis of the patient Homer Jay Simpson. In this case the test person is an imaginary figure. That is why, the visualized data may seem impossible for a human being, since the data is fictional. What is more, such a tool should preferably show only the amount of sugar, alcohol and caffeine taken by the patient, since they are of interest for the treating doctor and not the actual liquids. However, we are speaking of Homer Simpson and his life and drinking behavior is pretty interesting, so it is of great importance to follow the patterns of his drinking behavior.

Analysis of the Dataset

There are 2 dimensions for the data used. Please note that the visualizing concept has more than 2 dimensions but all others are derived from the initial two and all their data values can be easily calculated. These 2 are described as follows:

• time

Time is a continuing unit. In this case it is divided in several parts, which mark the different periods in Homer J. Simpson's life. The units used in the graph are years, but there is data for every day in his life for the corresponding periods.

• volume

Volume is a discrete unit. In this case there are values for every day of Homers life, for every different liquid he consumes. The volume is measured in deciliters.

Having the values of these two dimensions and the table with the constant amount of alcohol, caffeine and sugar in each beverage, one can easily calculate the amount of alcohol, sugar and caffeine consumed.

Description of the Data Structures in the Dataset

The volume is divided in six different categories for the six beverages that are inspected. A possible data structure is a 2 dimensional array. For every cell of the array (day) there is another array with six cells, which hold the values for the volume of the six different beverages. The problem can also be solved with Lists within Lists, etc.

Analysis of the the Targetted User Group

The users of the tools will most likely be staff trained in medicine or psychology and will know what the dataset with which the visualization concerns itself. Furthermore, it can be taken for granted, that most users will have a better than basic understanding of statistics. A detailed domain knowledge can be taken for granted.

No intimate knowledge of the subject (Homer Jay Simpson) should be taken for granted (unless Dr. Nick is the one to use the tool ;) ), a time-axis should be used to put the different circumstances in context.

Goals of the Visualization

The visualization should bring to light, the change in drinking habits of the named types of fluids (water, milk, fruit juice, coke, coffee and beer) and the amount of certain ingredients (sugar, caffeine, alcohol) ingested per time unit (depending on displayed detail-level) over time and the influence of certain events during the life of the subject. It is very easy to see the relation between the different amounts of liquids consumed, which can be of interest and great importance.