Re: Importance of 3 tier architecture in Funt. Testing
Any knowledge of an application is helpful.
its helps you to understand the data flow from the client aplication to the database using which medium.
some application uses webservices and flow of messages in different format. Some use xml format and parsing of xml.
if there is any change in the middle layer i.e. the data flow then you would be testing it and you would be able to do it in better way only if you understand applications architechture.