The Add CTA on Link Suggestion functionality is not enabled when linking a Data Asset

[Jayafo]

Describe the bug
When a user uses the Link suggestion functionality to link a Data Asset, the Add CTA is not enabled with Target Data Element option displaying No Suggestions!
To Reproduce
Steps to reproduce the behaviour:

1. Go to 'Mauro'
2. Select a model
3. Select a sub folder
4. Select the Data Asset in the view tree
5. Select the Context menu
6. Select Links in the dropdown menu list
7. Select Link Suggestions
8. A new page is open (Not sure if this is the process)
9. Select a Target Data Model
10. And select Suggest CTA
11. Suggested links are populated
12. The Add CTA is not enabled

Expected behaviour
The Add CTA should be enabled

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[olliefreeman]

@Jayafo the add button would only be enabled if there were links suggested, otherwise there’s nothing to add so the disabling of the button makes sense

[olliefreeman]

Also as per the other link suggestion ticket can you provide proof that you expect there to be links suggested, as this page simply shows it’s attempted link suggestions but for all the data elements there are no suggestions, which may well be because there’s no sensible suggestions

Can you provide a screenshots of 2 elements too think should be linked

[olliefreeman]

Also @Jayafo what does “CTA” stand for???

[Jayafo]

@olliefreeman CTA means "Call To Action"

[jamesrwelch]

@Jayafo as Ollie says above, if there is not a source and target element selected to "Add", then it's completely correct for the "Add" button to be disabled. Unless we're not understanding your issue, I recommend this issue is closed.

[jamesrwelch]

@Jayafo If it helps your understanding... The link suggestion mechanism is implemented by the Lucene search. Normally, the search index is kept up to date automatically, but in some cases it may get out of sync and need rebuilding. You can do that from the Admin pages. The link suggestions will only suggest links if you have suitable data elements in both the source and target data models - please check that this is the case. Finally, the link suggestion uses a weighted cosine-similarity algorithm based on keywords in the data element labels, descriptions, etc. It won't bother suggesting poor matches - only where there is a good relationship between keywords. So Data Element labels such as "MED_C_OF_D_LINE_5" generally don't stand much of a chance of matching unless adequate descriptions are included.

[Jayafo]

Accepted explanation to close defect