This is the 527th most frequent Finnish word.
olevista
The Finnish word "olevista" means "of the ones that are" or "of those who are."
Here, 'olevista' modifies 'ongelmista', referring to the problems that are currently present ('existing'), and contrasts with 'tulevista' ('upcoming').
He puhuivat ohjelmiston ominaisuuksista ja sen ongelmista jo olevista ja tulevista.
They discussed the features of the software and its issues, both existing and upcoming.
In this example, 'olevista' relates to 'faktoista', indicating facts which stem from or are derived from the current knowledge indicated by 'tämänhetkisistä tiedoista'.
Tulevaisuutta koskevat päätökset perustuvat tämänhetkisistä tiedoista olevista faktoista.
Decisions concerning the future are based on facts stemming from the current knowledge.
The word 'olevista' is part of the phrase 'olemassa olevista', which translates to 'existing'. It is used here as a grammatical construction to describe resources that are currently existing.