What integration approach should you choose to ensure systems are independent?

Choosing a loosely coupled integration approach is ideal for ensuring that systems remain independent. In this architecture, systems interact with each other through well-defined interfaces rather than being dependent on each other's internal workings. This means that if one system changes, it doesn't necessarily impact the others, allowing for easier maintenance and adaptability.

Loosely coupled systems can evolve independently, enabling organizations to update, replace, or scale components without the risk of disrupting overall functionality. This independence supports better agility and enhances the ability to incorporate new technologies or respond to changing business needs without causing significant system overhaul or downtime.

In contrast, tightly coupled systems are more dependent on each other, making them less flexible and resilient to changes. Low cohesion refers to the idea of not having elements that are closely related, which can lead to a lack of organization within a system rather than independence across systems. Batch processing is a method focused on processing data in groups rather than operational independence among systems. Therefore, the loosely coupled approach stands out as the best choice for maintaining system independence.