A shortcut is a reference (link) to an object in a shared folder these are commonly used for sources and targets that are to be shared between different environments / or projects. A shortcut is created by assigning 'Shared' status to a folder within the Repository Manager and then dragging objects from this folder into another open folder; this provides a single point of control / reference for the object - multiple projects don't all have import sources and targets into their local folders. A reusable
transformation is usually something that is kept local to a folder examples would be the use of a reusable sequence generator for allocating warehouse Customer Id's which would b e useful if you were loading customer details from multiple source systems and allocating unique ids to each new source key. Many mappings could use the same sequence and the sessions would all draw from the same continuous pool of sequence numbers generated.
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