What should be the main focus when linking IT systems during system integration?

The primary focus when linking IT systems during system integration should be on creating harmonious functionality. This approach emphasizes the need for different systems to work together seamlessly, ensuring that they can effectively share data, communicate, and perform their respective functions without conflict. Achieving harmonious functionality is crucial because it directly impacts the overall efficiency and effectiveness of business processes.

When systems are well-integrated, users can experience a unified interface, improved workflow, and enhanced capabilities, which ultimately leads to better decision-making and productivity. This focus on cooperation among systems fosters a cohesive operational environment where the strengths of each system can be leveraged for optimal results.

In contrast, aspects like system aesthetics may enhance user experience but do not fundamentally alter the systems' capabilities. Opting for the most expensive software does not guarantee functional compatibility or superior performance; instead, cost considerations should be balanced against the functional needs of the integration. Lastly, minimizing time spent on integration might lead to superficial connections or overlooked complexities, which can detract from the overall effectiveness and seamless operation desired in system integration.