Business Object Connector Script is Visual Basic script probably using ALT-F11 within an Excel Spreadsheet or a Word document. You can load external data into the MIMS system using values in a Spreadsheet, via the MSO's (green screen online programs) or MSK's (back-end business object methods WorkOrder.Create e.g.).
MINT Scripts are PC-based load scripts used as a simple way of loading data into MIMS using the on-line screens (MSO's) basically screen-scraping, so all the screen fields have to have a corresponding data entry value in your script.
Both methods are slow to run, but validate as though the user was entering into the screen, so are safe entry methods.
A faster run method can be achieved via a Batch Conversion program, but this costs more to develop and requires a programmer. If you have a large volume of data which you wish to load on a regular basis this is the method to choose.
If you have a smaller volume of data, and you wish to load the data yourself, try MINT scripts.
I prefer Connector but about 10'000 records can take 4-5 hours to load (MINT is worse).