Can you explain what asynchronous interaction between system components means?

Asynchronous interaction between system components means that one component sends a request or message to another and does not wait for an immediate response, continuing its work. The response may arrive later when the recipient processes the request.

This allows the system to be more responsive and efficiently utilize resources, as components are not blocked waiting for a response.

Example: in Java, message queues or CompletableFuture can be used for asynchronous processing:

CompletableFuture.supplyAsync(() -> {
    // Long operation
    return result;
}).thenAccept(result -> {
    // Processing the result
});

Thus, the main thread is not blocked while a long process is running.