English to Polish Bus/Financial Business/Commerce (general)

Vendor Maintenance Packages – whether modifications are introduced by the vendor or user, approval by the user and IS personnel as to the appropriateness of the modification with regard to user requirements should be made. Proper testing procedures should be followed regardless of who modifies the package.

Będę wdzięczna za podpowiedzi.
Dziękuję i pozdrawiam,
U.