Thanks. The company is quite large and I'm one of the designers.
Very interesting, I was kind of guessing it might be this. As a comparison, let's say you're the cocacola company, and you decide to make and market a lime drink. Everything's rolling along, and there's a guy somewhere in the chain who's actually mixing limes and soda water to make the drink. It would be an interesting surprise to have Bob Cocacola, the big boss, walk in to that guy and ask him to write down what the goals and objectives were for the company to produce and market a lime drink.
Meaning, things are very weird if the web designer is being asked what the purpose is for the web site. The guy in charge of marketing, and maybe the guy in charge of sales, ought to be the one deciding whether the company needs a web site, what are its goals and metrics, and passing that message down to everyone involved. The strategic direction being created at the bottom of the chain and passed upwards is an unfortunate, but common, situation for a company to be in.
Good luck with the project though!