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A Power BI presentation with focus on how to tune your Data Model in order to make the Q & A feature as natural and reliable as possible. These are the slides used din my SharePoint Connect session in Amsterdam 18-20 Nov 1914
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Power BI: Asking questions the natural way
using Q + A
Bjoern H Rapp
About me
Business Developer at Steria Twitter: @bjoern_rapp
SharePoint MVP and MCT Blog: www.sharepointviking.com
10 + years in system dev Email: [email protected]
AGENDA
• Power BI Primer
• Q & A
• Building Models
• Synonyms
• Behind the scenes
My Goals for the session…not like this.
but this……!! .
POWER BI familiarity of Office and the power of the cloud
EXCEL 2013 POWER BI for Office 365
Discover Analyze Visualize Share Find Mobile
Building Models - Modeling Tips
• Fixing Missing Relationships
• Renaming Tables and Columns
• Choose a default Field Set for each table
• Choose a default Label for each table
• Fix incorrect data types
• Mark year and id columns as “Do not Summarize”
• Choose a data category for each data and geo col
• Choose a sort by column for relevant column
Building Models – Missing Relationships
POOR
BETTER
Building Models – Renaming tables and columns
POOR
BETTER
Building Models–Default field set for each table
Building Models–Default label for each table
Building Models – Fix incorrect data types
Building Models – Do not summarize id and date columns
Building Models – Choose a Data Category for each date and geography column
Building Models – Choose a Sort By Column for relevant columns
Building Models – Normalize your model
POOR
BETTER
Synonyms
• Unique for Q + A
1.
Sharing Questions
• Sharing links• Featured Questions
1.
Behind the scenes – Choosing the best answer
Search for interpretations of questions
Score and select best interpretation
Select best visual
1.
“medal count by country for 2012”
Search for interpretations of questions
Score and select best interpretation
Select best visual
from Olympics.xlxsshow medal[medal count], medal[country]Where Olympics[year] = 2012
from Olympics.xlxsshow medal[medal count], Olympics[host country]where olympics[year] = 2012
from Sales.xlxsshow customer[country]where order[order year] = 2012
1.
“medal count by country for 2012”
Search for interpretations of questions
Score and select best interpretation
Select best visual
from Olympics.xlxsshow medal[medal count], medal[country]Where Olympics[year] = 2012
from Olympics.xlxsshow medal[medal count], Olympics[host country]where olympics[year] = 2012
from Sales.xlxsshow customer[country]where order[order year] = 2012
0.86
0.72
0.46
1.
“medal count by country for 2012”
Search for interpretations of questions
Score and select best interpretation
Select best visual
from Olympics.xlxsshow medal[medal count], medal[country]Where Olympics[year] = 2012
from Olympics.xlxsshow medal[medal count], Olympics[host country]where olympics[year] = 2012
from Sales.xlxsshow customer[country]where order[order year] = 2012
0.86
0.72
0.46
1.
Influencing the best answer
Search for interpretations of questions
Score and select best interpretation
Select best visual
Data modeling,synonyms
Workbooks in site
Data modeling (data types, data categories)
1.
THANK YOU!
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