One new idea would be to structure the Knowledge Base just like the Service Catalog, meaning that if certain articles could be assigned by a specific category this would help the users. At the moment the structure is looking by the number or by typing a specific word.
Maybe another way to address this is by a number section, example 0-100 for new hires 101 to 150 for Corporate Applications and so on.
|What problem will this feature solve?:|