Presented a paper at the Creation, Curation, Critique and Conditioning of Principles and Guidelines in Visualisation (C4PGV) - In conjunction with IEEE VIS 2016, Oct 23rd, Baltimore, MD, USA

1. Multi-perspective Visualisation Approach for
E-discovery Email Investigations
Mithileysh Sathiyanarayanan, Cagatay Turkay
giCentre, City, University of London, UK
Creation, Curation, Critique and Conditioning of Principles and
Guidelines in Visualization (C4PGV)
In conjunction with IEEE VIS 2016, Oct 23th, Baltimore, MD, USA
Red Sift

2. Overview
In our work, we aim to understand the role of visualisation in
investigating email communication (E-discovery) by identifying
design suggestions through workshops with legal experts that
will inform the design process.

3. Motivation
• Electronic Discovery (E-discovery) manual investigation is expensive,
time consuming and less efficient. In our case, we considered email
communication investigation.
• Email data is dynamic and multi-modal that involves several
individuals, their relationships and temporal behaviours.
• Simple, dynamic and interactive visualisations can be of great help,
such that they can change the way analysts/investigators understand
contacts, messages in inboxes and their relationship over time.

4. Workshops
Case Study - Email Communication Analysis (Enron)
Focus - Visualisation Requirements
Target - Legal Experts and Analysts

5. Design Suggestions
1. Multi-faceted: representation must be supported with a multi-faceted search feature
to display various granularities.
2. Multi-modality: representation must include temporal behaviors, individuals' action,
connections and text/topic responses.
3. Multi-level: representation must support a drill-down approach through data filtering
and provide visual guidance.
4. Multi-aggregation: representation must be systematically organised based on the
multiple aggregations in all the levels.
5. Multi-juxtaposition: representations must be effective for displaying multiple
relationships and comparison.

6. Prototype Design

7. Conclusion
• Based on the workshop recommendation by the legal experts, we
observed that, multi-perspective approach considering the five
features as a heterogeneous viewpoints can help analysts.
• Design suggestions taken into consideration, we came up with a first
prototype version.
• As a further work, we will conduct empirical studies to confirm the
design suggestions as our guidelines.