English to Polish Bus/Financial Construction / Civil Engineering

"A fragnet is defined as the sequence of new activities that are proposed to be added to the existing schedule. The fragnet shall identify the predecessors to the new activities and demonstrate the impacts to successor activities."
Szukam zgrabnego polskiego odpowiednika (niestety moje poszukiwania spełzły na niczym).
Z góry dziękuję za pomoc.