Logical layers such as BLL, DAL, CL etc can be hosted in the same machine or can be distributed in separate machines specially where high end scalability are required. The relation and isolation among logical and physical tiers are required to be defined and explained with appropriate design goal.
While considering logical layers in distributed environment, there are several technologies are available. SOAP/HTTP based web service or .NET remoting can be considered, each of which has own merits and de-merits. These considerations are required to be addressed in this point.
| posted on Monday, April 28, 2008 2:13 PM