Synchronous data sources with Synchronous data acquisition: Uses synchronous data acquisition (all data comes from the database in one chunk) and streams chunks to the client. No blank chunk is sent, so the component is not rendered until the first data chunk is received. Currently we don’t support this for Tree components.

Asynchronous data sources with Synchronous data acquisition: Uses synchronous data acquisition (all data comes from the database in one chunk) and streams chunks to the client. The first chunk sent to the client contains no table data but enables the table to be rendered before a full data chunk is available. This gives the user control of the table and some of its actions sooner. The data chunks then stream in behind the blank chunk as they are processed.

Asynchronous data sources with Asynchronous data acquisition: Uses asynchronous data acquisition (data is obtained from the database in chunks) and streams chunks to the client. The first chunk sent to the client contains no table data but enables the table to be rendered before a full data chunk is available. This gives the user control of the table and some of its actions sooner. The data chunks then stream in behind the blank chunk as they are processed. In this case, we have the potential to see chunks of data rendered in the client while data is still being acquired from the database.

There is change in loading behavior in case of Trees. In Windchill 9.x, we had followed the depth first loading approach where by each node was expanded till its leaf node, before starting to expand it sibling. In Windchill 10, with DataSource, we have moved the Breadth first loading approach. Nodes are loaded per level.