N-Tier Appli­ca­tions can eas­ily imple­ment the con­cepts of Dis­trib­uted Appli­ca­tion Design and Archi­tec­ture. The N-Tier Appli­ca­tions pro­vide strate­gic ben­e­fits to Enter­prise Solu­tions.
N-tier appli­ca­tion archi­tec­ture pro­vides a model for devel­op­ers to cre­ate a flex­i­ble and reusable appli­ca­tion. By break­ing up an appli­ca­tion into tiers, devel­op­ers only have to mod­ify or add a spe­cific layer, rather than have to rewrite the entire appli­ca­tion over. There should be a pre­sen­ta­tion tier, a busi­ness or data access tier, and a data tier.
With the grow­ing pop­u­lar­ity of J2EE frame­work, the devel­op­ment of an N-Tier Appli­ca­tion became eas­ier and all the neg­a­tives of a client/server appli­ca­tion devel­op­ment were well taken care about. A J2EE frame­work pro­vides stan­dard­ized com­po­nents and a set of ser­vices to those com­po­nents. More-over appli­ca­tion out­puts such as secu­rity and multi-threading are han­dled automatically.

Using J2EE to develop N-Tier appli­ca­tions involves break­ing the two-tier archi­tec­ture into mul­ti­ple tiers. An N-Tier Appli­ca­tion can pro­vide sep­a­rate lay­ers for fol­low­ing ser­vices: Pre­sen­ta­tion Layer, Dynamic Pre­sen­ta­tion, Busi­ness logic, and Data­base access. A browser takes care of the pre­sen­ta­tion layer, and JSP / Servlet / XML / SOAP and XSL care about the dynamic pre­sen­ta­tion, Ses­sion EJB takes care of the busi­ness logic and Entity beans take care of the data access using JDBC.
With the ben­e­fit of an N-Tier archi­tec­ture and Sam­i­flabs strong exper­tise in the J2EE frame­work the team at Sam­i­flabs can deliver great lev­els of solu­tions to clients vision.