Transposed grids with text comparisons

[Millstone1998]

Hi,

I have an almost entirely text based dataset.  I need to show some kind of visualisation of where the data has changed between two different dates.  I can create the data model in pretty much any way that's suitable.  My question is: are there any recommended visualisation tools which would help display the data as simply as possible?

For example, if I had data that looked like this:

ProductName	Date	Categories1	Categories2	Colour	Europe	Asia
Widget1	Jan-22	ABC, DEF, GHI	XYZ100, PQR200	red, orange	XX	YY
Widget1	Jan-23	ABC, DEF, GHI	LMN300	red, green	XX	ZZ
Widget2	Jan-22	DEF, GHI	LMN200	green	XX	YY
Widget2	Jan-23	ABC, DEF, GHI	LMN200	green	ZZ	YY

The easiest option for the user would be to see the data transposed, with perhaps two rows (now columns) of data at a time that you can "page" through, with highlighted values where there are differences, so:

First set:

ProductName	Widget1	Widget1
Date	Jan-22	Jan-23
Categories1	ABC, DEF, GHI	ABC, DEF, GHI
Categories2	XYZ100, PQR200	LMN300
Colour	red, orange	red, green
Europe	XX	XX
Asia	YY	ZZ
Africa	ZZ	ZZ

Second set:

ProductName	Widget2	Widget2
Date	Jan-22	Jan-23
Categories1	DEF, GHI	ABC, DEF, GHI
Categories2	LMN200	LMN200
Colour	green	green
Europe	XX	ZZ
Asia	YY	YY
Africa	ZZ	XX

Transposing the data table in Power Query doesn't really give a suitable dataset.

I realise this isn't a natural use case for Power BI as it doesn't involve any summarisation.

Many thanks for any suggestions.

[lbendlin]

Yes to the transpose (unpivot) but you would need to keep Product and Date static. 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCs9MSU8tMVTSUfJKzNM1MgIyHJ2cdRRcXN10FNw9PIH8iMgoQwMDHYWAwCAjAwOgQFFqio5CflFiXnoqSDoCSERGKsXqYJhmjMU0H18/Y4Qp6UWpqXkwQ6KikAwxQnYSqn6IK1C0othvRMB+VP1AWyH6YwE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ProductName = _t, Date = _t, Categories1 = _t, Categories2 = _t, Colour = _t, Europe = _t, Asia = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ProductName", type text}, {"Date", type date}, {"Categories1", type text}, {"Categories2", type text}, {"Colour", type text}, {"Europe", type text}, {"Asia", type text}}),
    #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"ProductName", "Date"}, "Attribute", "Value")
in
    #"Unpivoted Other Columns"

You likely have more than two snapshots in your data so the actual comparison would have to be done in DAX.

Please provide sample data that fully covers your issue.
Please show the expected outcome based on the sample data you provided.