Interactive & Actionable Data Visualisation With Power View Julie Koesmarno MVP, MCT, MCSE Data Platform, MCSE Business Intelligence SQL Server / BI Consultant @MsSQLGirl http://www.mssqlgirl.com
Julie Koesmarno 10 years experience with SQL Server Power BI & Tabular Model Enthusiast Co-chapter Leader of Blogger at http://www.mssqlgirl.com SQL Server / BI Consultant
I Want It Now Data Visualization with Power View Historically, users have been constrained to consume data in fixed platforms, with one specific dimension for digital viewings and a couple of printed layouts. Nowadays, with the ubiquitous mobile devices available, Management expects to know key business indicators and day-to-day operation performance on the go. Using well-designed data models and visualization techniques, Power View can leverage timely and quick dashboards for analysis on the go. This session will discuss how to design the appropriate data model to enable self-service data exploration and insightful analysis in Power View, and how to create pixel perfect visualization for mobile devices. You will also learn how the techniques differ from traditional platforms. Using live demo, we will walk through ways to channel users focus on actionable analytics.
Agenda Data Visualization Dashboard Power View Preparing The Data Model
Data Visualization
What Is Data Visualization Abstracting and communicating data in an intuitive and comprehendible format via Visualization
why visual?
Seeing is extremely fast and efficient Thinking is much slower and less efficient
out-of-balance seeing over used under used thinking Source: http://www.interaction-design.org/encyclopedia/data_visualization_for_human_perception.html
out-of-balance seeing slow fast thinking Source: http://www.interaction-design.org/encyclopedia/data_visualization_for_human_perception.html
in-balance seeing thinking Source: http://www.interaction-design.org/encyclopedia/data_visualization_for_human_perception.html
How?
idea idea idea idea idea idea idea idea idea
Visually Encoding Data Pre-attentive Processing vs Attentive Processing Colour, form, spatial position, motion over quantitative, where appropriate
Gestalt Principles Source: http://www.softviscollection.org/intro/a-thousand-words/
Dashboard
visual display of the most important information needed to achieve one or more objectives which fits entirely on a single computer screen so it can be monitored at a glance
visual display of the most important information needed to achieve one or more objectives which digital screen fits entirely on a single computer screen so it can be monitored at a glance
small, concise, clean and intuitive display mechanisms also customizable specific to requirements
most important and trickiest of all Data Visualization to get it right yet powerful when done right
Dashboard s Role Summarize Identify patterns Highlight anomalies Suggest reasons Guide towards effective decisions
3 Key Purposes of Dashboards strategic
3 Key Purposes of Dashboards analytical
3 Key Purposes of Dashboards operational
Power View
Excel 2013 / Power BI Sharepoint 2010 / 2013 Data Model = Power Pivot / Tabular Upgrades more frequent Supports online features Better for collaboration Allow managed individual data models Data Model = Tabular / Multidimensional Centralized enterprise solution Less frequent updates Allow managed centralized data models
Demo Good vs Bad Power View
Advantages of Power BI Preview Get started quickly Out of the box connectors for popular Saas Solutions Reporting Consistency Natural query language View / Author on same product Share / Manage Alerts
Power BI Dashboard Power BI Building Blocks 1. Dashboard 2. Dataset 3. Report 4. Tile 5. Q&A
Data Ink
Data-Ink Ratio Theme Position Font Size / Colour Interactivity ** slightly different placement for mobile platforms
composition tips
emphasized neither emphasized nor de-emphasized emphasized neither emphasized nor de-emphasized de-emphasized
Data Model
Demo Power Pivot Power BI Preview
Prepare Power Pivot / Tabular Default Aggregation Add Time Intelligence calculations (see DAX Patterns) Top X products / customers / other categories Configure KPI Hide unwanted columns Provide Descriptions Focus on Variance from comparable target
Power BI Designer Preview
Wrap Up
Dashboard Delivery Checklist small, concise, clean and intuitive display mechanisms also customizable specific to requirements
Dashboard Design Checklist Summarize Identify patterns Highlight anomalies Suggest reasons Guide for effective decisions Fits on a single screen Can be monitored at a glance Timely for Strategic, Analytical or Operational purposes
Remember
References Information Dashboard Design (Stephen Few) Show Me the Numbers (Stephen Few) Visual Intelligence (M. Stacey, J. Salvatore, A. Jorgensen) Dax Patterns - http://www.daxpatterns.com/usecases/ SQL BI http://sqlbi.com Power BI http://powerbi.com Stephen Few: Data Visualization for Human Perception - http://bit.ly/1ah4ij3
Q & A Julie Koesmarno @MsSQLGirl signal@mssqlgirl.com