In the Skills Ontology i.e. the backend, when skills are added, they are normalized. Like in a thesaurus, terms are equated if they refer to the same thing or concept.
There are different scenarios for such equation.
These have been discussed in the page on Issues with Skills Nomenclature. So we are not going into details here.
For an user who is creating a Skills Profile using the Skills Profiler in the frontend, the system will take the user to the primary term (used by the system) whichever of the equated terms she searches on.
1. When Internet Marketing is searched user will be taken to Online Marketing
2. When Dotnet is searched user will be taken to .Net
3. When user searches on AI the user will be taken to Artificial Intelligence
IYS has spent considerable time curating differentiated but common meaning terms. And this normalization is a continuous activity.