The VNC Application Exchange Framework delivers the real magic in VNClagoon: seamless integration of a variety of enterprise business applications on middleware layers, meta data integration and content management, user management and provisioning, endless scalability.

Product Description

VNCaxf stands for Application Exchange Framework and is the backend framework of VNC, which consists of services and protocols. This enterprise framework has the aim to integrate the applications in our stack with the following effects: Reutilization of data between any application through mutual synchronization and referencing, consistent interfaces to have access to any data out of any application, exchange/linkage of data between several sites, open for 3rd party developments of random clients and interfaces to other systems.




Unique, persistent URL for each item:

Mailbox, Mail, Appointment, Calendar, File, Contact, your fridge, etc.

In combination with VNCdirectory (OpenIDM):

fine grained per-item and per-operation access control is possible.

Simple and homogeneous operations on all nodes:

Add child, Delete node, Modify node.

Therefore simple to extend with new nodes (applications or services):

Open for 3rdParty extensions and clients.

Complete decoupling from back end applications:

Back end apps can therefore be exchanged without interfering with the user experience or data model structure.

Horizontal data integration:

  • Properties and actions for a single object can be composed out of data/actions in multiple different back end applications.
  • i.e. an “account” object can span multiple systems and represent properties of each of the systems.

Site-specific data modelling:

Independent from the data model in the back end applications.

Vertical data integration:

  • Objects of the same type from multiple instances of the same back end application are viewed as a unified collection.

AXF-aware clients can use and cross-reference data:

from all applications without considering application borders.

Dynamic / discoverable typing of nodes for creating dynamic front ends:

For simple changes in the data model you don’t need to change the corresponding clients if they are aware of a dynamic model.

Search operations at any point in the tree:

Supported by Apache Solr.

Coupling of multiple sites:


WebSocket and HTTP interface:

to the data tree.

Technical documents and documentation


We set highest standards in what we do. Just like our clients. That’s why it is so important to us to know what they think about working with VNC and our business solutions.

“With VNCtalk, Zimbra becomes a true collaborative platform. A user can seamlessly chat, share files & collaborate from any device. Great product & company to work with.”

Prashant Mudbidri
Director of Logix InfoSecurity Pvt. Ltd
about VNCtalk

“As part of this project, it was also very important for the representatives of the church that a WhatsApp alternative could be found. Short message services are commonly used, therefore EKBO Dialog was very welcome. “

Fabian Kraetschmer
Head of Unit 1.3 – IT, EKBO
about VNCtalk

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