This section will focus on integration schemes and respective functionalities allowed by the system, and how a client service can make full usage of them.

Global overview

The Sign’Stash solution is composed of the following major components:

Component	Description
Integration Service (einvoice-integration-ws)	Exposed REST Interface to receive client services requests for executing digital signatures on the supplied documents. If subscribed, this component can also notify the client service end user(s) that a set of digitally signed documents are available for consult.
Client Portal (einvoice-fo)	Web application portal for end users to consult the available documents to which they received a notification.
Document Issuer Backoffice (einvoice-bo)	Web application backoffice for client issuer operators to configure and manage the usage of the Sign’Stash service.

Proposed Architecture

For global reference the Sign’Stash provided components are in white background, and the blue background pertains to the client service components.

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Integration

Global overview

Proposed Architecture