The challenge of creating a robust errors database, the core of iCheck, is that information must be pulled from a multitude of disparate sources. Sometimes, the data source is a database with its unique schema and field names that must be mapped to the iCheck database. Other times, the data source is a text file which must be accessed via FTP, parsed, and loaded into iCheck. And other times, the data is in RETS (Real Estate Transaction Standard) format, a real estate data format similar to XML, which is accessed via HTTP.
