My project follows the interactive slide show narrative visualization structure. The Overview page represents the base of the visualization. The user is being exposed to the author driven content and will be lead through two different visualization scenes. The user has the ability to move backwards and forwards as well as jump directly to a specific slide by clicking on top navigation bar.

There are two different scenes used to give the reader perspective. The scenes are a mixture of being driven by the author and driven by the user as the user has the ability to drill down into the scenes in order to view more detail. The user sees the map and their interest is piqued. Now, with their curiosity at attention they move to the next slide.

In the dual axis line graph the user can see an effective use of annotations with the tooltip highlighting the data value at a given point in each line. The user has the ability to focus in the data that each line represents at a given point. For example, the user can use the tooltip to look at the average oil price for a given year and then move the cursor up or down to see to see how many passengers traveled globally during that year. In the choropleth map we see another use of annotations with the tooltip that is displayed while hovering over the specific country. When hovering over a country, one can see the amount of airline passengers for the country in a given year. In the choropleth the tooltip gets cleared when you move off of the country. In the line graph it gets cleared when you move the cursor off of the graph.

The interactive slideshow contains parameters as seen by the ability to change the year in the choropleth map. When the user operates the toggle they witness the hue of red change with changing population. From this we can see where the most airline passengers came from in a given year. The dual line graph allows the user to use the year as a parameter and visualize the data of a given year using the tooltip. Further, parameterization is seen in the narrative as a whole flows from the map to the line chart as we start to ask a more specific question of how oil prices affected the amount of people flying.

In order to utilize triggers a slider bar was created to move between years in the choropleth map. If the slider is set to 1998 the user knows that they are witnessing data for that year. Also, as the slider comes to rest and the user is simply viewing a specific year they are essentially looking at an individual event for the given year. In addition, while the slider is at rest, the user can get a visual look at the details of the map for a given year. In the line graph the user uses the year as a trigger which can be witnessed by the position of the hashed vertical line when they move the cursor. When the cursor is at rest, oil price and passenger information can be visualized.