Building a museum aggregation system poses several problems for both the collection and the server side.
The load management engine should treat the data globally and also on records level by institution taking into account that different sources provide different data structure and semantics. Similar problems arise during the data the transmission, since the set of data to be transmitted to the portal and Europeana site are heterogeneous. To the above mentioned problems Europeana Connection Kit (ECK) integrated into engine Qulto seems to be the solution.