Which factor is likely to increase the complexity of a potential automation?

The identification of a legacy application as a factor likely to increase the complexity of automation is pivotal for understanding how RPA interacts with existing systems. Legacy applications often use outdated technology that may not easily integrate with modern automation tools. They might have fragmented or poorly designed interfaces, proprietary systems that are difficult to modify or access, and potentially lack the necessary APIs for effective integration. Additionally, these applications may require extensive scripting or customized solutions to automate processes adequately, leading to increased development time and complexity.

This contrasts with other options where high employee engagement and clear documentation typically lead to smoother automation processes. High employee engagement can foster a collaborative environment for successful automation projects, and clear documentation simplifies understanding and implementing automation workflows. Similarly, a modern user interface is generally designed to be more intuitive and integrated, which can streamline the automation process rather than complicate it. Thus, the legacy application distinctly stands out as a significant complexity factor in the potential for automation.