There are interior and exterior drain tile systems. The interior system collects water in your basement and diverts it to your sump pump for removal. The exterior system diverts the water collected out to your municipal sewer system.
Many homeowners prefer an interior system, as no excavation work is needed, which can be the case with an exterior system. It really depends on whether you prefer extensive work inside or outside of your home.
If you aren't sure which system would be better, or if you're ready to have one installed, Webb Concrete Repair is the place to turn if you reside in Western New York.