Final answer:
Internal users are employees who use an information system regularly, and they provide essential feedback on the system's efficacy due to their direct knowledge and experience.
Step-by-step explanation:
The individuals who regularly use an information system and provide valuable feedback on its strengths and weaknesses are known as Internal users. These users are considered 'insiders' within the insider-outsider model, as they are already working for the firm, have knowledge of the existing procedures, and are therefore deeply familiar with the operational aspects of the system. As stakeholders with direct interaction and experience with the system, their insights are essential for assessing the effectiveness of the system and identifying areas for improvement.
Internal users are employees who will use an information system regularly and can offer important feedback on the system's strengths and weaknesses. They have direct access to the system and are familiar with its workings. For example, employees in a company who use a customer relationship management (CRM) system to manage customer interactions and sales activities are internal users.