Collocations for viability - noun

continued, continuing, future, long-term
She is very negative about the long-term viability of the project.

commercial, economic, financial, political

assess, explore, investigate, test | prove
Once the railways had proved their viability expansion was rapid.

ensure | maintain, preserve, safeguard
measures to preserve the viability of small businesses

improve | doubt, question
The company has questioned the commercial viability of the mine.

threaten, undermine