French to English Marketing Construction / Civil Engineering

Metro construction project, quality assurance plan.

"Avec plus de 30% des effectifs engagés dans le service client au quotidien, XXX garantit la pérennisation des systèmes déployés auprès de ses clients sur des durées de 10 à 15 ans."

"pérennisation" has been asked about before. But I'm a bit stumped about this. I've put it down as "marketing" because it seems not be saying anything very much: "we guarantee that our systems will continue to operate (?) for 10 to 15 years". How impressed is the (potential) client meant to be? Or how grateful? "We can guarantee that our systems won't break down leaving you with an out-of-service metro system for at least, ooh, 16 years. Give or take. Guvnor".

Or does it mean something more substantial, like we shall, perhaps, upgrade our system continually over the promised term, 10 or 15 years, or whatever is agreed ... but surely then there would have to be a more "contractual" way, and certainly a clearer way, of putting it, surely?

Also, what's the point about the "effectifs" engaged in "service client"? How might this relate to the second part of the sentence? The claim appears to be that the fact of such a high proportion of employees being, what, talking to customers every day (?), helps guarantee the "pérennisation". Are they perhaps using the word as a fancy term for on-going maintenance?