CSVDataStore and Metadata Questions

[tampubolon]

I'd like to use NILMTK for my own input data from the smart plug. I've read some of the document but still confused about the CSVDataStore and Metadata.

My input data is in CSV file format and I intend to match it to the IAWE dataset format and use the IAWE converter to convert it to HDF5 format. Do I have to implement the CSVDatastore before running the IAWE converter? And about the metadata that I have to build for my own data, is there any tool to help building it? I have 2 buildings to process. Thank you very much.