SAP Lumira Interview Questions & Answers

  1. Question 1. Why Do We Use Sap Lumira As Bi Tool?

    Answer :

    • It allows you to predict future outcomes and forecast as per changing market situations.
    • You can create data visualizations and stories from multiple data sources.
    • It helps you to adapt data to organizational needs to create stories with visualizations.
    • You can share the visualizations on different platforms like SAP HANA, BO Explorer, Business Objects BI Platform, etc.


  2. Question 2. Why Do We Use Custom Calculations In Data Set?

    Answer :

    You can create custom calculations in Lumira data Visualization which are not available in data set or at database level.

    Example : You have a “Salary” column in the data set, you can add a new calculated column with name “Bonus” and can apply a calculation on Salary to get the value of this column.

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  4. Question 3. What Is The Use Of Different Tabs In Lumira?

    Answer :

    Prepare : This is used to import data set in SAP Lumira. Data cleansing is done and converted into the appropriate measures or attributes for the reports. You can add new custom calculations here.

    Visualize : This tab is used to add graphs and charts on the data that has been imported and organized in Prepare tab. You can add different attributes and measures to Label axis.

    Compose : This is used to create stories and presentation, including background colors, titles, pictures, and text.

    Share : This tab is used to publish your visualizations to different platforms or with different set of users in BI Repository.

  5. Question 4. How Do You Connect Sap Lumira To Hana Modeling Views?

    Answer :

    You can connect to SAP HANA Modeling views in SAP Lumira. You have 2 options −

    • Connect to SAP HANA
    • Download from SAP HANA
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  7. Question 5. What Is The Difference Between Two Options To Connection To Hana Modeling Views?

    Answer :

    By selecting option – “connect to SAP HANA”. This will allow you to access data in read mode and you can visualize data in charts.

    • Download from SAP HANA

    This options allows you to copy the data locally and you can edit and manipulate the data to visualize in the charts.

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  9. Question 6. Can We Add Hidden Columns From An Excel Spreadsheets To Lumira Dataset?

    Answer :

    Yes, on Advance option to select custom range. You can also include hidden rows and columns.

  10. Question 7. When You Acquire A Data Set, It Comes Under Which Of The Tab To Perform Data Cleansing And Editing?

    Answer :

    Prepare : This is used to import data set in SAP Lumira. Data cleansing is done and converted into the appropriate measures or attributes for the reports.

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  12. Question 8. How Can You Acquire Data From An Infoprovider In Lumira Dataset?

    Answer :

    Add new dataset → connect to SAP Business Warehouse

  13. Question 9. When You Use Query With Sql Option To Acquire Data Set, You Can See Few Of The Connections In Red And Green. What Is The Meaning?

    Answer :

    To use SQL query to create dataset, go to file → New

    Click on Query with SQL option to download a dataset and click on Next. JDBC drivers has to be installed for database middleware for using SQL query. The access driver is .jar files you can download from vendor site and copy to driver folder in application path.

    Select SQL query, all queries in green presents drivers are installed properly for middleware. Select database middleware for target database and click on Next.

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  15. Question 10. What Are The Different Connection Parameters That Can Be Configured While Using Query With Sql As Data Source?

    Answer :

    • Connection Pool Mode: To keep connection active
    • Pool timeout: Time duration to keep connection active in minutes.
    • Array Fetch Size: to determine number of rows to fetch from target database.
    • Array Bind Size: Larger bind array, more number of rows will be fetched.
    • Login Timeout: Time before a connection attempts a timeout.
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  17. Question 11. What Are The Different Panels In Prepare Tab For Data Cleansing And Applying Filters?

    Answer :

    Dimension and Measure Panel : It contains list of all dimensions and measures acquired in data set. Number in front of each object represents its data type. You can use different tools in this panel to edit the data objects and to add hierarchies.

    Dataset Selector : You can select between multiple datasets or you can also acquire a new dataset using this option.

    Filter Bar : This represents filter applied to any dimension in dataset. To add a filter click on the icon in front of dataset and click on Filter.

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  19. Question 12. What Is Chart Canvas?

    Answer :

    This is used to create or modify a visualization. You can directly drag attributes and measures to chart canvas or can add to chart builder.You can add various tools like

    • Sorted by Dimensions
    • Add or Edit a ranking by measures
    • Clear Chart
    • Fit chart to frame
    • Reprompt
    • Refresh
    • Settings
    • Maximize
    • Undo
    • Redo
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  21. Question 13. What Are The Different Chart Canvas Properties That You Can Set In Lumira?

    Answer :

    • Chart Canvas Layout
    • Chart Style
    • Template
    • Font Zoom, etc.
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  23. Question 14. Where Do You Define Properties For Chart Canvas?

    Answer :

    Go to File → Preferences → Charts
    Here you can define various properties for chart canvas.

  24. Question 15. What Is The Use Of Compose Tab?

    Answer :

    You can create different stories in SAP Lumira in presentation style document using visualization, graphics and other customizations that has been applied to dataset.Once you go to compose tab you get multiple options to select an Infographic, Board or a Report.

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  26. Question 16. What Are The Different Chart Types In Sap Lumira?

    Answer :

    • Bar Chart
    • Column Chart
    • Radar Chart
    • Pie Chart
    • Donut Chart
    • Tree
    • Scatter Plot
    • Bubble Chart
    • Network Chart
    • And many more
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  28. Question 17. Which Chart Types Are Best Suited To Show Correlation Between Different Values?

    Answer :

    • Scatter Plot
    • Bubble Chart
    • Network Chart
    • Numeric Point
    • Tree
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  30. Question 18. What Is The Use Of Geography Charts In Sap Lumira? What Are Different Chart Types Under This Category?

    Answer :

    It is used to present map of country or globe present in the analysis. Common chart types are:

    • Geo Bubble Chart
    • Geo Choropleth Chart
    • Geo Pie Chart
    • Geo Map
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  32. Question 19. What Is Conditional Formatting?

    Answer :

    It is used to mention critical data points in a chart by different values meeting certain condition. Multiple conditional formatting rules can be applied on measures or dimensions.

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  34. Question 20. Which Chart Types Support Conditional Formatting In Sap Lumira?

    Answer :

    Conditional formatting can be applied on:

    • Bar and Column charts (except 3D column charts)
    • Pie chart
    • Donut chart
    • Scatter chart
    • Bubble chart
    • Cross tab
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  36. Question 21. Can You Add Multiple Data Sets In Sap Lumira?

    Answer :

    Yes, you can select between multiple datasets or you can also acquire a new dataset using this option.

  37. Question 22. What Is The Use Of Filters?

    Answer :

    Filters are used to limit the data in Lumira Visualizations. You can pass various filter conditions to restrict data comes in visualizations and stories.

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  39. Question 23. Can We Add Filters In Charts Under Visualize Tab?

    Answer :

    Yes, you can apply filter on a chart in Visualize tab. Click on Add filter and select aa dimension or a measure to add a filter to the chart.

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  41. Question 24. What Is The Use Of Display Formatting Option In Prepare Tab?

    Answer :

    You can set the below formatting for an attribute or dimension −

    • Select a Value format
    • Choose a Display format
    • Prefix or suffix
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  43. Question 25. Can We Convert Data Types In Sap Lumira For Dataset?

    Answer :

    You can also convert data type into another. In Prepare tab → Go to column heading → Options

  44. Question 26. What Is The Use Of Hierarchies?

    Answer :

    Hierarchies are used to display data at different granularity level and you can drill up/down at different levels for better understanding of relationship between objects.

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  46. Question 27. What Is Geography Hierarchy? How We Can Create Geography Hierarchy In Dataset?

    Answer :

    When data is acquired, application looks for dimension containing location and present with an icon.

    Click on option icon in front of a dimension → Create a Geographic hierarchy → By Names (this option is available only for string dimensions).

    New window will open with name Geographical data → select the dimension to map to hierarchy and click on Confirm.

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  48. Question 28. What Is The Meaning Of Green, Yellow And Red While Acquiring Data For A Hierarchy?

    Answer :

    • Locations mapped exactly are marked with green.
    • Locations with more than one possible match (for example, if more than one city named London was found) are marked with yellow.
    • Locations not found in the geographic database are marked with Red.
  49. Question 29. How Do Use Hierarchies In The Charts Added To Chart Canvas In Sap Lumira?

    Answer :

    When hierarchies are defined on dataset, you can use drill up or drill down option to move to next level.

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  51. Question 30. What Is A Custom Hierarchy?

    Answer :

    You can create hierarchies using any available combination of dimensions in acquired dataset.

  52. Question 31. How Do You Create Custom Hierarchies In Sap Lumira? How Do You Define Level In A Custom Hierarchy?

    Answer :

    Let us say you want to create a custom hierarchy on Category → Product

    Select Category → Options → Create a Custom hierarchy

    New window will open. Enter the name of hierarchy and select the other dimensions to add to next levels and click on Create. Arrows can be used to change the level.

  53. Question 32. How You Can Open Multiple Dataset In A Single Lumira Document?

    Answer :

    It allows you to open multiple datasets in a single document and you can add dataset to a document.

    Go to Data pane at the top → Add new Dataset

  54. Question 33. You Have Added Multiple Data Sets In Sap Lumira. How Do You Perform Merging Of Datasets?

    Answer :

    You can also merge two dataset by using Join operator.

    Go to Data pane at the top → Combine → Merge

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  56. Question 34. To Perform A Merge On Multiple Datasets, What Are The Conditions To Perform A Merge?

    Answer :

    To merge :

    • They should have same key column.
    • Column with same data type can be merged.
    • All columns will be merged.
  57. Question 35. What Is The Use Of Merge Type Option In Sap Lumira?

    Answer :

    Merge type defines the type of join. You can select from different join types – Inner join, outer join, etc.

  58. Question 36. What Is The Different Between Combine And Append Datasets In Lumira?

    Answer :

    • Merge is used to apply different joins on datasets.
    • You can use Union operator to append two datasets.
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  60. Question 37. How Do You Append Datasets In Lumira?

    Answer :

    • To append datasets in Lumira, go to Data → Combine → Append
    • To use append, both tables should contain same number of columns and compatible data types. Only compatible data types can be appended.
  61. Question 38. You Have Acquired Datasets With Different Number Of Columns And Different Data Types, When You Perform Append On These Datasets What Will Happen?

    Answer :

    When you perform an append and both source and target dimensions are different, message appears-Union cannot happen.

  62. Question 39. If You Want To See How Data Is Spread Over Multiple Axis In A Single Chart, Which Option You Can Use In Lumira?

    Answer :

    You can also add measures as a dimension in SAP Lumira. To do this add two or more measures as dimensions in the chart. This can be used to check how data is spread over multiple axis in a single chart.

  63. Question 40. How Do You Use Measures As Dimensions In Sap Lumira Charts?

    Answer :

    Go to Settings and click on use Measures as dimensions option. Once you select this option, measures are displayed as new measure dimension in Dimension panel.

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  65. Question 41. Is It Possible To Ass Custom Charts In Sap Lumira?

    Answer :

    You can use SAP Lumira software development kit SDK. You can add custom charts in SAP Lumira using VizPacker and these charts will be added to list of available charts in canvas.

  66. Question 42. How Do You Create Stories In Sap Lumira In Left, Right, Top And Bottom Slide Show Formats In Compose Tab?

    Answer :

    To create a slide show, go to Compose → Board → Create. You can select different types of charts Left, Right, Bottom, Top, etc.

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  68. Question 43. Is It Possible To Create Customize Stories In Sap Lumira? How You Can Add Company Logos, Custom Images To Lumira Presentations?

    Answer :

    You can also create customize stories in SAP Lumira. To create customize stories, you can add different types of pages in a story. To add a page click on Add Page and select a page you want to add to story.

    Drag the Visualization from left panel to the story. You can also add images from local machine. Go to Pictures and click on + sign.

  69. Question 44. To See The Available Built In Images To Add To Lumira Presentations, Where You Can Add These To Stories?

    Answer :

    There are inbuilt images that can be used in a story. Go to Pictogram on left side and it will show you all the available pictograms that can be used in a story.

  70. Question 45. What Are The Different Formats You Can Export Your Data Sets In Sap Lumira?

    Answer :

    You can save dataset as .csv or. xls file.

    To do this go to Share tab and select the dataset from left panel. Go to File → Export As

  71. Question 46. Is It Possible To Print The Visualizations? How Can We Print The Visualizations In Sap Lumira?

    Answer :

    Yes, To Print a Visualization, go to Share tab → Select Visualizations and you will get an option to Print Visualization at the top.

  72. Question 47. When You Publish A Dataset To Sap Hana, All The Visualizations That Are Created On Dataset Are Also Published?

    Answer :

    Select the dataset to be published. Once you select the dataset you will see the options to publish dataset to HANA. Only dataset is published to HANA server and not visualizations.

  73. Question 48. Can You Send Visualization In Email To Other Users? What Are The Different Export Sizes That Can Be Used?

    Answer :

    Yes, you can export a visualization to a printer or can also send in an email to a user. Go to options in a Visualization and click on Send by mail.
    Choose an Export Size-

    • Small, Medium, Large
  74. Question 49. What Are The Different Data Sources You Can Use In Lumira To Acquire Dataset?

    Answer :

    You can use below data sources in SAP Lumira

    • Excel file as a data source
    • Working with CSV files
    • Clipboard
    • Connecting SAP HANA views
    • Universe as a data source
    • Using Query with SQL
    • Using SAP BW InfoProvider as data source
  75. Question 50. How Do Use Universes As Data Source To Acquire Dataset In Sap Lumira?

    Answer :

    Universes that are created with .unx extension using Information Design Tool/.unv files created in UDT and published to BI repository can be used as data source in SAP Lumira.

    Go to File → New → Click on Universe option to connect and to download a dataset.