Load an ISI file into the tool, then create a database from it using the ISI database loader.
It is strongly recommended that the database be cleaned before extracting the longitudinal summary.
For a quick analysis of a small dataset you may wish to merge together author entities with identical names. For a scientifically sound analysis of a larger dataset, you can find author entity merging suggestions (or manually set your own merging orders from scratch) and perform the merge.
Then, you will probably want to merge together journal entities according to recognized variants.
Finally, you must match references up to documents in your dataset.