2) Send the Overdracht to all Vendors

An addition to the Nuts Bolt process where if the same Customer is registered with multiple Vendors, a Task is created for each 'eOverdracht-Receiver' service at each Vendor, i.e. multiple tasks per customer. 
 Advantages: 
 
 The receiving Vendors do not need knowledge of which other systems are used: each of the Vendors takes over the resources relevant to their role in the treatment: no Customer specific configuration required. 
 There is no need for a central client administration where all patients are known, although the users of the various Vendors/systems then have to know whether or not to accept the client. Configuring multiple Customers as in 1) also remains an option. 
 It doesn't require any modification to the Nictiz architecture as far as I can tell, just the process/agreements within Nuts. 
 
 Disadvantages: 
 
 This only works if all sending parties support it. So the principle that there can be more than one 'eOverdracht-Receiver' Service for a Customer in the address book, and if this is the case that a separate Overdracht must be made for each Service, must then become part of the agreement system. 
 For the sender it adds complexity if the Task status does not have the same status at different Vendors, for example one Vendor accepts it and the other does not. 
 Each 'Vendor' in the Nuts address book defines its own list of 'Customers'. There must then be a label/identifier in the address book through which the sender can see that the Customer at Vendor A is the same as the Customer at Vendor B, and only show this Customer once in the search results for the user. 
 
 Note: A variation on this is the idea of creating one Task and sending a notification to the different Vendors. But I think this is problematic in terms of accepting and processing the file: which of the Vendors accepts the Task? The Nuts architecture and the Nuts authorization tokens allow this. If this can be solved with work processes within the Customer, this is a direction that can also be further investigated.