The contracting authority shall implement an open tender contest for services related to the development of the current portal solution.

The contracting authority will make call-offs for services such as:

— Design adjustments and improvements.

— Technical integrations and facilitation.

— Single Sign On and Single Sign Off to/from other business applications that HSN use.

— Collect and present data from different APIs that are offered from trade systems or other relevant systems that shall be integrated.