This is a summary of the software used for CLOSER Discovery. Also described are some of the reasons behind the decisions made in the project , that which might help inform people making a similar choice laterchoices. None of these software are required to produce DDI Lifecycle compliant metadata or even the CLOSER implementation of DDI Lifecycle (i.e. the particular elements in use).
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Where off-the-shelf products were not available or consider considered sub-optimal, some in-house production took place. The key example of this is CADDIES. The CADDIES UI has been designed to be much more efficient for the large scale of entry that CLOSER has undertaken. Mapper developed as an extension of this.