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Cognitive decision supportive mechanism implementation is based on essential elements; they are composed with the cognitive architecture via a cognitive modeling tool, and then communication mechanism combined with the hand and eye is implemented, thereby find the respective HCUI to interact with users. This environment model with task simulation tools effectively runs on heterogeneous and homogeneous environments (operating systems, real-time operating systems, various servers and clients, multiple computers, databases, etc.). It is finally integrated with the user interaction management system interface and computer-based management interaction management systems.

Table 1.1 The core artifacts provided at the cognitive modeling of user interaction [16].

Artifact	Purpose
Cognitive model	It provides the simulation of the cognitive performance and user’s behavior to perform the task.
Task simulation	It provides the task for the cognitive model. Also, the user interface will be used in the model.
Linkage mechanism	It provides the pathway between the model and simulation to communicate for human perception and action. It simulates human perception and action.

Figure 1.4 Supporting cognitive model for the interaction of decision supportive mechanism [16].

Supporting cognitive model (Figure 1.4) for interaction of decision supportive architecture is embodied with the following three necessary steps.

The initial step to provide the model with supporting decision-making capabilities for perception and action among human-computer interaction with the task simulation is to extend the necessary cognitive tools as architecture to become a complete model by adding an eye with a simulated hand.

In the second step of the cognitive model to the simulation, the simulated eye and hand observations are to be recorded, and that information is to pass into the cognitive model for necessary actions.

The model’s final step is categorized into two specific parts as simulated eye and hand implemented in that environment as the simulation by using necessary simulation tools, whereas the cognitive model can be separated. Here, there occurs a communication mechanism between two such separated specific parts as in the form of interaction done simulated eye and hand with cognitive modeling [16].