Data integrity in HTTPS is verified using hash functions. Hash functions generate fixed-size values (hashes) based on the content of the data. By comparing the received hash with the original hash, the recipient can ensure that the data has not been tampered with during transmission, maintaining the integrity of the information exchanged over the secure connection.

The Subscription and Notification Mechanism of UDDI is crucial for businesses aiming to provide dynamic binding of web services. This feature allows service consumers to subscribe to changes in service information, enabling dynamic updates and binding based on the evolving nature of services in the distributed environment. It facilitates agility and adaptability in integrating web services dynamically.

In Service-Oriented Architecture (SOA), services communicate with each other using the messaging mechanism. Messaging involves the exchange of information between services through messages, promoting a loosely coupled and asynchronous communication model. This mechanism enhances flexibility and scalability in the SOA environment.

In SOA, the design principle that emphasizes the use of standardized service contracts is Service Standardization. Standardized contracts define the way services interact, promoting consistency and interoperability. This principle facilitates a more uniform and predictable integration between services, contributing to the overall success of the SOA implementation.

In Service-Oriented Architecture (SOA), the Enterprise Service Bus (ESB) is a common approach for integrating heterogeneous systems. The ESB facilitates communication and integration between different services and applications in a loosely coupled manner.

The HTTP method commonly used for creating resources in REST is POST. It is used to submit data to be processed to a specified resource.

In WSDL, 'binding' refers to the association between the abstract interface and a concrete protocol. It defines how the web service will be accessed over the network.

A namespace in XML-based web service versioning plays a crucial role in avoiding naming conflicts between different versions, ensuring clarity and preventing ambiguity.

Healthcare applications must consider compliance with the Health Insurance Portability and Accountability Act (HIPAA) for encryption standards.

Elliptic curve cryptography offers the advantage of providing equivalent security with smaller key sizes, making it more efficient for resource-constrained environments like web services.