The best person to own the unmitigated risk of the technology is the IT system owner. The IT system owner is the person or entity that has the authority and responsibility for the acquisition, development, maintenance, and operation of the IT system. The IT system owner is also responsible for ensuring that the IT system meets the business requirements, security standards, and compliance obligations of the enterprise. The IT system owner should own the unmitigated risk of the technology, as they are in the best position to understand the nature and impact of the risk, and to implement the appropriate risk responses to reduce the risk exposure to an acceptable level. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter
1, Section 1.3.1, page 251234

Data processing is the activity of collecting, organizing, transforming, and analyzing data to produce useful information for decision making or other purposes12.
The role of the internal IT team in this situation is data processors, which are the people or entities that process data on behalf of the data controllers, who are the people or entities that determine the purposes and means of the data processing34.
Data processors are the role of the internal IT team because they are responsible for managing information through the applications that are used by the organization, and they act under the instructions and authority of the organization, which is the data controller34.
Data processors are also the role of the internal IT team because they have to comply with the data protection laws and regulations that apply to the data processing, and they have to ensure the security and confidentiality of the data34.
The other options are not the role of the internal IT team, but rather possible roles or terms that are related to data processing. For example:
Data custodians are the people or entities that have physical or logical control over the data, and they are responsible for implementing and maintaining the technical and administrative safeguards to protect the data56. However, this role is not the role of theinternal IT team because it is a subset or function of the data processor role, and it does not reflect the full scope of the data processing activities that the internal IT team performs56.
Data owners are the people or entities that have legal rights or authority over the data, and they are responsible for defining and enforcing the policies and rules for the data access, use, and quality . However, this role is not the role of the internal IT team because it is a different or separate role from the data processor role, and it does not reflect the relationship or agreement between the organization and the internal IT team
. References =
1: Data Processing - Wikipedia1
2: Data Processing: Definition, Steps, and Types2
3: Data Controller vs Data Processor: What's the Difference?3
4: Data controller vs data processor: What are the differences and responsibilities?4
5: Data Custodian - Wikipedia5
6: Data Custodian: Definition, Role & Responsibilities6
Data Owner - Wikipedia
Data Owner: Definition, Role & Responsibilities

According to the 6 Best Practices to Ensure Software License Compliance article, the best way to determine software license compliance is to conduct regular internal compliance audits. These self-assessments can be done with the help of software license management companies. The goal is to see where compliance issues lie and to take corrective actions before they become serious problems. Periodic compliance reviews can help to avoid fines, penalties, lawsuits, and reputational damage that may result from software license violations.
They can also help to optimize software spending and utilization, and to identify any gaps or opportunities for improvement in the software license management process. References = 6 Best Practices to Ensure Software License Compliance

The performance of a client-facing application is the measure of how well the application meets the expectations and requirements of the clients who use it. The performance of a client-facing application can be affected by various factors, such as functionality, usability, reliability, availability, security, and scalability.
Continuously monitoring the performance of a client-facing application is the process of collecting, analyzing, and reporting on the performance data and metrics of the application over time. Continuously monitoring the performance of a client-facing application can help identify and resolve issues, improve quality, optimize resources, and enhance client satisfaction. The most important thing to ensure when continuously monitoring the performance of a client-facing application is that the objectives are confirmed with the business owner.
The business owner is the person or entity who has the authority and responsibility for the business value and outcomes of the application. The business owner defines the objectives, goals, and requirements of the application, and sets the performance criteria and targets. Confirming the objectives with the business owner can help ensure that the performance monitoring is aligned with the business needs and expectations, and that the performance data and metrics are relevant, accurate, and meaningful. References = Risk and Information Systems Control Study Manual, Chapter 4: Risk and Control Monitoring and Reporting, Section 4.3:
Continuous Monitoring, p. 203-205.

Independent Assessment:
Objective Evaluation: An assessment by a qualified independent party ensures that the evaluation of the new controls is unbiased and thorough. It provides a credible verification of the control's effectiveness.
Expertise and Standards: Independent assessors bring specialized expertise and follow established standards and best practices, ensuring a comprehensive review of the control implementation.
Validation and Assurance: This assessment provides assurance to stakeholders that the controls are functioning as intended and meet the required security and operational standards.
Comparison with Other Options:
Post-Implementation Review by Key Personnel: While valuable, this review may lack the objectivity and thoroughness of an independent assessment.
Senior Management Sign-Off: Sign-off from senior management is important but does not provide the detailed validation of control effectiveness that an independent assessment offers.
Daily Operation of Robots without Human Interference: This indicates operational stability but does not verify that all controls are functioning as intended.
Best Practices:
Regular Independent Assessments: Schedule regular independent assessments to continuously validate the effectiveness of controls.
Comprehensive Reporting: Ensure that the independent assessment includes comprehensive reporting on findings and recommendations for improvement.
Follow-Up Actions: Implement any recommended actions from the assessment to address identified gaps or weaknesses in the controls.
References:
CRISC Review Manual: Recommends independent assessments as a best practice for validating control effectiveness and ensuring comprehensive risk management.
ISACA Standards: Support the use of independent assessments to provide objective and credible evaluations of control implementations.