Create a Reporting Hierarchy in Power BI 

Creating hierarchies in your Power BI data provides opportunities to further enhance reporting capabilities. For instance, Power BI will automatically calculate a date hierarchy. This will allow you to drill down from annual data, to quarters, months and days. You can also create bespoke hierarchies within your data to represent other relationships. Hierarchies will allow you to provide drill through visualizations, dashboards and reports to your users for easier analysis.

Examples of hierarchies:

  • A geographic hierarchy could allow you to drill down from Country, to State, City, and Street.
  • A product hierarchy could allow you to drill down from product category, to subcategory and individual item.
  • A personnel hierarchy could reflect the organization structure from Director, to Manager, Team Leader and individual.

Firstly, this post will explain how to create hierarchies in Power BI. Then it will suggest data hierarchies that you may find useful in DocRead data. Finally, it will show an example of a hierarchy and how it is reflected in a visualization.

How to create a data hierarchy in Power BI

1) A data hierarchy needs to be created in the fields area of Power BI. Firstly decide on the levels of data that you want to use in the hierarchy.

Image showing some of the fields available in the Readership vwTaskInfo table

2) Start at the top level of the hierarchy. Click on the ellipsis menu for that data field to see the available options, then select 'Create hierarchy'.

image showing how to select create hierarchy

3) Use the same 'options' menu for the other fields you want to use in the hierarchy and select 'add to hierarchy'. Select the hierarchy you created in step 2.

Image showing the add to hierarchy option

4) Continue by repeating these steps until you have added all levels into the hierarchy. Click and drag the fields into the correct hierarchy order so they are displayed in the fields list from top level to lowest level. The order they are shown will reflect how the drilldown levels work in the subsequent reports.

Image showing all levels selected in the site url hierarchy

Understanding DocRead Compliance Data

The DocRead database is automatically created when you install DocRead. The 'Readership vwTaskInfo' table contains most of the information you are likely to need for reporting purposes. This view was created specifically for reporting to ensure that any queries do not affect the original databases.

The 'Readership vwTaskInfo' table contains (amongst other things):

1) Details about the documents that have been assigned, document ID, location, version, type, comments etc.

2) Details about who the items were assigned to, audiences, users, user email etc.

3) Details about task deadlines, due date, completion date, status etc.

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DocRead Data Hierarchies

We recommend creating any data hierarchies in the DocRead 'Readership vwTaskInfo' table to ensure the data integrity of the main DocRead database.

Here are some hierarchies that you may find useful:

Audience Name Hierarchy

1) AudienceName

2) DocumentName

3) UserPreferredName

Document location hierarchy

1) SiteURL

2) LibraryUrl

3) DocumentURL

Report example using the Audience name hierarchy

After you have created your hierarchies, you can begin to use them in visualizations. You need to ensure that you use the data fields from within your hierarchy and not the original database fields.

The drilldown icons highlighted below will be displayed above your visualization and allow you to navigate through your hierarchy.

For example, the image below shows the reading status of tasks assigned to different audiences by DocRead. Each audience is displayed on the left hand column with a '+' image next to it, indicating additional detail is available. The matrix report shows a total of 230 tasks, of which 54 are overdue.

Image showing the top level of the audience hierarchy

Clicking on the icon to 'Expand all down one level in the hierarchy' changes the report as shown below. Each Audience has been expanded to show the reading status for compliance documents that have been issued to that audience. The total number of tasks (230) is still displayed at the bottom of the visual. A scroll bar can be used to view more of the detail in this report. Notice that the documents have '+' signs indicating additional levels of detail are available.

The report below shows that 18 tasks have been completed for the Collaboris Staff Handbook.

Image showing the Audience hierarchy drilled down by one level

Expanding the hierarchy further to the User level will display the names of the people within the audience that received each document.

You can either use the arrows above the visualization, or the '+' and '-' icons to the left of each level to display the level of information required.

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