Web Application Intermediary for Cloud Service Access on End-User Devices

The patent introduces a server as an intermediary between end-user devices and cloud services. The server hosts web applications that provide cloud service functionality, allowing devices to access services through standard web browsers without requiring direct implementation of complex cloud service APIs or protocols on the device itself. This mediator approach enables service capability while keeping device complexity low.

The patent creates a universal workflow management system on the server that can handle multiple different cloud services through a common interface. The web application provides standardized mechanisms for defining workflows, specifying service sequences, and managing data flow between services. This universal approach allows complex multi-service workflows to be configured and managed without requiring specialized knowledge of each individual service's implementation details.

The patent uses the server as an intermediary to manage user authorization data centrally. Instead of requiring each end-user device to store and manage sensitive authorization credentials locally, the server securely maintains authorization data and handles authentication processes. The device communicates authorization requests to the server, which validates credentials and manages security tokens. This approach maintains service security while greatly improving practicality, as devices don't need to implement complex local authorization data management.