Question, what do you think is a reasonable development time from design to production of a Windows service that reads in a text file, parses data from it, creates a new table in a SQL Database with a time stamp for generations of data and stores that the parsed data in there. Finds the last generation and runs a comparison between the two and creates an action list of all adds, updates, and deletes, the writes that data to SQL Server and then constructs a flat file output of it. There are logging and e-mail pieces that are mostly reuse code. There is also a manager app to control and schedule this service that is mostly reuse code. Just a guestimate if that came across your desk for everything, design, implimentation, test. Trying to decide if I am way off on my estimate as my boss tends to think.