ISSS608 2016-17 T1 Assign2 CHIA Yong Jian - Visualisations

1 - Home

2 - Introduction

3 - Data Preparations

4 - Visualisations

5 - Results

6 - Conclusion

4.1 Assessment of appropriate visualisations charts and tools

The multivariate data, including the calculated ratios, are continuous data, over a time period from 2010-2016. Given the nature of the data, the following visualisations are explored:

Visualization	Pros	Cons
Radar Chart / Cobweb	Visually easy to read and compare across data rows	Does not lend itself to provide detailed information if a viewer needs it, hence requires supplement visualizations if needed to view more data in detail. It is not easy to view changes in data over a time series. Depending on software, will need to standardise the data as well, and might be tricky with negative values in data.
Trellis/Small Multiples	Allows easy comparison of data across rows and columns. Lends itself to displaying time series data well.	Can be visually confusing if too many indicators selected
Parallel Coordinates	Allow exploration of relationships across all data rows	Visually more challenging and confusing to decipher. It is not easy to view changes in data over a time series. Depending on software, will need to standardise the data as well, and might be tricky with negative values in data.

For this assignment, based on the above reasoning, a trellis chart will be used to make company comparisons across indicators, with a key consideration on its ability to display the years of data at the same time.
Separately, the tried-and-tested basic line charts will be used for purpose of reviewing ratios for a single company.

4.2 Prototyping, Refining and Interactivity

The following explanations describe the thinking and decision process behind each dashboard element:

4.2.1 Company Overview Dashboard (Line Chart)

4.2.2 Company Comparison Dashboard (Trellis Chart)

4.3 Final Visualizations

The final visualisations built in Tableau can be accessed via the links in the following table:

Company Overview	Company Comparison
Link to Dashboard	Link to Dashboard