Data Ladder provides a data quality management suite that includes all the sorts of capabilities that one would expect, plus self-service data preparation capabilities.
Data Ladder offers DataMatch Enterprise and ProductMatch, where the former works exclusively with structured data and the latter with semi and unstructured data and which is targeted at manufacturers and retailers. As well as a free to download trial edition the main editions of DataMatch Enterprise are DataMatch Server Enterprise, and DataMatch Server Enterprise + API. The last of these offers real-time capabilities that is intended to prevent duplicates getting into your systems in the first place, with the API either being called from a database trigger, or being used as an intermediate layer between the database and application.
Author/s: Philip Howard,Daniel Howard