**7. Conclusion and immediate future challenges of IUI**

While entering to Industrial Revolution 4.0, which is a combination of Automation and Internet, device development is a challenge. More of Automated devices are to be developed, which will use Sensor based commands and will execute it as per the need of the users. Thus IOT based device development is inevitable.

Such work involving the Sensor based includes but not limited to Multiple Sensor based Table Tops. It may be multimodal, multiuser and affordance of the table for multimodal operations accommodating the objects on the Tabletop. Here not only the Tabletops support hand and gesture mode operation but also tangible interaction and often needed visualization [35, 36].

Table Top applications have a massive application in viewing dominated working platform like photo or videos, brain teasing activities like game or competition besides normal computational work to advanced visualization of Dataset dynamically.

The important points for research to be handled for such devices are


Considering the simple Table top application as one of the simple examples of IUI we observe that the following few parameters are to be taken into consideration while developing the devices. To achieve it mostly we have to go for IOT based services.

The other point to be handled by the scientists are


d.Inputs requires pressure on the outer layer.


These are the future challenges which need quick solutions to meet the busy, preoccupied and smart users for their needs. Hope the trend of current research leading to such requirements can provide solutions to these problems as Intelligent User Interfaces are unavoidable in the future generation technology users. It is as dynamic as the need of the end user and the development is a challenge to the developers.

These are leading to the aspects of Augmented Reality and Virtual Reality, which is the Next Generation Computing.
