Teaching:TUW - UE InfoVis WS 2010/11 - Gruppe 05 - Aufgabe 3: Difference between revisions

Latest revision as of 01:00, 18 January 2011

Interactive visualization[edit]

Introduction[edit]

Based on a report [1] of the Unicef, who tries to enable a greater access to drinking-water and sanitation for people all over the world. A visualization was created that shows the access to these resources in addition to the amount of population. The situation of the urban population is by far better, in comparison to the rural population. The main reason behind this are the worse living conditions of the rural population.

884 Million people do not use improved sources of drinking - water. 2.6 Billion people do not use improved sanitation, just 61 percent of human civilization have access to improved sanitation. With this in mind a visualization was created which enables the viewer an easy way to view and understand the presented data.

The visualization can be found here:

http://mikazuki.github.com/infovis-ws2010-ex3

Analysis of the dataset[edit]

The dataset[2] is contains datapoints for the years 1990, 1995, 2000, 2005 and 2008.

Some data instances had missing values. Therefore just complete data instances were used.

The main characteristics of the dataset are:

multivariate
temporal
mostly numeric values (except country names)
hierarchies
- countries are part of continents
- piped and other are part of improved for water
- open defecation, shared and other are part of unimproved

The composition of the data is the following:

all data (totals)
- urban
- rural
- water
  - improved (totals)
    - piped
    - other improved
  - unimproved
- sanitation
  - improved
  - unimproved (totals)
    - open defecation
    - shared
    - other

Analysis of the users[edit]

The main audience for the created visualization are people with interest in global politics. But also viewers with an other background should be able to use the visualization and find the information they need in a fast way. The visualization mainly focuses on showing the viewer the development of the attributes, so that users are able to investigate how the conditions changed over time.

Analysis of the tasks[edit]

The main intend behind this is to show how the attributes develop over time in the single countries and continents. A easy away has to be provided, comparing the development of single countries, to find out which countries are in need of humanitary help.

Different questions can be answered by this interactive visualization, e.g.:

Which continent has more access to important resources?
How has the growth of access to a resource in a continent improved that the countries on that continent?
How much did a specific attribute grow in the last few years?

Visualization design[edit]

The Job Voyager[3] visualization was chosen as basis for the created visualization. The main focus is to represent a stacked time series of the data. The data which should be shown can be filtered by population and its attributes. The visualization mainly consists of two charts. The first one shows the attribut development for the continents. The user is able to move the mouse over single continentes to display the name of this continent. It's also possible to select a continent by clicking. If a continent is selected a second chart compares the development of the countries of this continent. If the user is moving the mouse over the area of a country, the actual name of the country is shown as label in the left upper corner of the chart. The values of the different years are shown as additional permanent labels inside the chart.

advantages

main focus on development over time
the ability to extend the chart
main information on one site
fluent workflow
dependencies of different variables
big dataset shown in an easy to understand way

disatvantages

big differences among attributes are hard to represent
many countries in one chart are confusing sometimes
details hard to read
sometimes difficult to find a specific country

Conclusion[edit]

The chosen visualization focuses on time oriented data. Main focus was to show the development of the specific attributes over time. Overall the visualization satisfies this purpose in an easy readable way.

References[edit]

[1] [Unicef, 2010] Unicef. Progress on Sanitation and drinking-water: 2010 Update. JMP report - World Health Organization and UNICEF 2010, 1–55, 2010.http://www.wssinfo.org/fileadmin/user_upload/resources/1278061137-JMP_report_2010_en.pdf.

[2] [WHO, Unicef, 2003-2010] WHO - UNICEF. Protovis: Joint Monitoring Programme (JMP) for Water Supply and Sanitation. Created at: 1990. Retrieved at: January 15, 2011. http://www.wssinfo.org/data-estimates/table/.

[3] [Bostock, Heer, 2009] Michael Bostock and Jeffrey Heer. Protovis: A graphical tool for visualization. Created at: March 31, 2009. Retrieved at: January 15, 2011. http://vis.stanford.edu/protovis/ex/jobs.html.

@@ Line 1: / Line 1: @@
-== interactive visualization ==
+== Interactive visualization ==
-... whatever ...
 === Introduction ===
-Based on a report [1] of the Unicef, who tries to make a greater access to dinking-water and sanitation for humans all over the world, we made a visualization, which presents the access to it, addiction to the number of the population. The maintenance of the urban population is far better developed, in comparison to the rural population. The main reason therefore is that the rural population has harder and bigger geographic conditions.
+Based on a report [1] of the Unicef, who tries to enable a greater access to drinking-water and sanitation for people all over the world.
+A visualization was created that shows the access to these resources in addition to the amount of population.
+The situation of the urban population is by far better, in comparison to the rural population.
+The main reason behind this are the worse living conditions of the rural population.
 Million people do not use improved sources of drinking - water.
-.6 Billion people do not use improved sanitation, just 61 percent of human civilization does it.
+.6 Billion people do not use improved sanitation, just 61 percent of human civilization have access to improved sanitation.
-With this in mind, we tried to show a analysis of the all regions over the world, which we have the information of.
+With this in mind a visualization was created which enables the viewer an easy way to view and understand the presented data.
-=== dataset analysis ===
+The visualization can be found here:
-The dataset is continuous over the time from 1990 to 2008.
+* http://mikazuki.github.com/infovis-ws2010-ex3
-In an interval of every 5th year, in each country have been made entries of the (un-) improved sources of drinking water, the sanitation and the people who gained access to it. But not all datasets of all countries filled in, we just take the completed.
-The application area is the progress on all datasets, which leaves us to a multidimensional datastructure.
+=== Analysis of the dataset ===
+The dataset[2] is contains datapoints for the years 1990, 1995, 2000, 2005 and 2008.
+Some data instances had missing values. Therefore just complete data instances were used.
+The main characteristics of the dataset are:
 * multivariate
 * temporal
-* numeric
+* mostly numeric values (except country names)
 * hierarchies
-* countries < continents
+** countries are part of continents
+** piped and other are part of improved for water
+** open defecation, shared and other are part of unimproved
+The composition of the data is the following:
 * all data (totals)
 ** urban
@@ Line 28: / Line 36: @@
 **** piped
 **** other improved
+*** unimproved
 ** sanitation
+*** improved
 *** unimproved (totals)
 **** open defecation
 **** shared
 **** other
-=== users ===
-We declare the doctors and experts of preparing the sources of drinking water as the target audience of the visualization.
-But users and inhabitants of the regions are also able to look and understand this graphic.
-The shown dataset might be a reference for medical supporters, to know where the derivation of the complaints comes from.
-Our diagram might let you find out the coherence between different variables and dependence on time.
-=== tasks ===
+=== Analysis of the users ===
-...
+The main audience for the created visualization are people with interest in global politics. But also viewers with an other background should be able to use the visualization and find the information they need in a fast way.
+The visualization mainly focuses on showing the viewer the development of the attributes, so that users are able to investigate how the conditions changed over time.
+=== Analysis of the tasks ===
+The main intend behind this is to show how the attributes develop over time in the single countries and continents.
+A easy away has to be provided, comparing the development of single countries, to find out which countries are in need of humanitary help.
+Different questions can be answered by this interactive visualization, e.g.:
+<!-- * Are there any dependencies of attributes, which affect different countries? -->
+* Which continent has more access to important resources?
+* How has the growth of access to a resource in a continent improved that the countries on that continent?
+* How much did a specific attribute grow in the last few years?
+=== Visualization design ===
+The Job Voyager[3] visualization was chosen as basis for the created visualization. The main focus is to represent a stacked time series of the data.
+The data which should be shown can be filtered by population and its attributes.
+The visualization mainly consists of two charts.
+The first one shows the attribut development for the continents. The user is able to move the mouse over single continentes to display the name of this continent. It's also possible to select a continent by clicking.
+If a continent is selected a second chart compares the development of the countries of this continent.
+If the user is moving the mouse over the area of a country, the actual name of the country is shown as label in the left upper corner of the chart.
+The values of the different years are shown as additional permanent labels inside the chart.
+[[Image:screenshot_job_voyager.png|thumb|300px|left|Figure 1: visualization]]
+<u>advantages</u>
+* main focus on development over time
+* the ability to extend the chart
+* main information on one site
+* fluent workflow
+* dependencies of different variables
+* big dataset shown in an easy to understand way
-=== visualization design ===
+<u>disatvantages</u>
-...
+* big differences among attributes are hard to represent
+* many countries in one chart are confusing sometimes
+* details hard to read
+* sometimes difficult to find a specific country
 === Conclusion ===
-...
+The chosen visualization focuses on time oriented data. Main focus was to show the development of the specific attributes over time.
+Overall the visualization satisfies this purpose in an easy readable way.
 === References ===
-...
+:[1] [Unicef, 2010] Unicef. Progress on Sanitation and drinking-water: 2010 Update. ''JMP report - World Health Organization and UNICEF 2010'', 1–55, 2010.http://www.wssinfo.org/fileadmin/user_upload/resources/1278061137-JMP_report_2010_en.pdf.
+:[2] [WHO, Unicef, 2003-2010] WHO - UNICEF. Protovis: Joint Monitoring Programme (JMP) for Water Supply and Sanitation. Created at: 1990. Retrieved at: January 15, 2011. http://www.wssinfo.org/data-estimates/table/.
+:[3] [Bostock, Heer, 2009] Michael Bostock and Jeffrey Heer. Protovis: A graphical tool for visualization. Created at: March 31, 2009. Retrieved at: January 15, 2011. http://vis.stanford.edu/protovis/ex/jobs.html.