Testing microservices often involves challenges in coordinating and ensuring effective communication between the various services.

Scalability refers to the ability of a web service to handle increasing loads without compromising performance.

Independent deployment in microservices architecture allows updating and scaling of individual services without affecting others, providing flexibility and autonomy for each service.

In REST, the PATCH HTTP method is used to update an existing resource partially. It allows clients to send only the changes to the resource, minimizing data transfer and improving efficiency when updating specific fields of a resource.

Throughput measures the amount of data transferred successfully over the network and is crucial for evaluating performance under various network conditions.

Monitoring tools are essential for real-time performance and request tracking in web services.

Postman is commonly used for debugging RESTful services, allowing developers to send requests and inspect responses.

Businesses should assess the performance and ROI of their SOA implementation by monitoring service usage and response times. This involves analyzing key performance metrics to ensure that the implemented services meet expectations and deliver the desired return on investment.

ISO/IEC 27001 is the international standard commonly referenced for information security management.

When integrating a legacy system with a modern application using SOAP, version compatibility of SOAP is crucial to ensure proper communication and data exchange.