But it is simply not possible to be precise about the timing of future events.
BBC: L'Aquila quake: Italy scientists guilty of manslaughter
It will have to be precise about what sales are moving online, and adjust its product mix accordingly.
Mr Wright, the aerodrome manager, said it was difficult to be precise about departures because of unforeseen events, such as delays in refuelling.
It will have to be precise about its target market segments.
It is difficult to be precise about the number of foreclosure initiations expected in coming quarters, as it will depend on (among other factors) the evolution of house prices, which will vary widely across localities.
Congress has stood in the way -- I should be precise about that -- House Republicans have stood in the way of passing a bipartisan farm bill that was passed through the Senate that would offer additional tools for us to deal with the challenges of the drought.
But critics are worried that possible changes to "loosen up" the rules on providing for special needs pupils, which would mean local education authorities would not be required to be precise about how many hours of support pupils would receive, will mean less help for those who need it.
"You need to be very precise about where the radiation beams go, " Dr Roy told BBC News.
However, until now they have been unable to be so precise about predicting lung cancer risk because it varies depending on various different factors.
Professor Leridon said the study had been carried out because it was important to answer a range of practical questions about the chances of either natural or artificially aided conception so that couples could be given more precise information about the potential risks of postponing childbirth beyond a given age.
BBC: The researchers evaluated women's chances of conceiving
Chairman Luca di Montezemolo hints that it's just the start of the Apple relationship, too, as Ferrari will be "more precise" about the union in the months ahead.
Carnival, she said, has not told families what hotel passengers will be put in or provided precise information about when they will arrive in Mobile, Ala.
Much remains to be learned about this evident psychopath and his precise motivations for acting in such a deranged fashion.
Usually, cardiologists avoid making precise forecasts about when studies will be finished.
There are several different ideas about what that dark energy might be, but more precise measurements of the universe are needed to figure out exactly what it is.
First, the instructions were precise about the ingredients and the objectives (the steak slices were to be a quarter of an inch thick, the presentation just so), but not about how to get there.
However the Commission members also believe that it would be damaging for investors, creditors and taxpayers for uncertainty about the structural reforms to persist, which is why they want there to be precise, prescriptive legislation as fast as is practicable.
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