One Tier Architecture:
One Tier application AKA Standalone application
One Tier Software Architecture
One tier architecture has all the layers such as Presentation, Business, Data Access layers in a single software package. Applications which handles all the three tiers such as MP3 player, MS Office are come under one tier application. The data is stored in the local system or a shared drive.
Two-Tier Architecture:
Two Tier application AKA Client-Server application
Two Tier Software Architecture
The Two-tier architecture is divided into two parts:
1. Client Application (Client Tier)
2. Database (Data Tier)
Client system handles both Presentation and Application layers and Server system handles Database layer. It is also known as client server application. The communication takes place between the Client and the Server. Client system sends the request to the Server system and the Server system processes the request and sends back the data to the Client System
Three-Tier Architecture:
Three Tier application AKA Web Based application
Three Tier Software Architecture
The Three-tier architecture is divided into three parts:
1. Presentation layer (Client Tier)
2. Application layer (Business Tier)
2. Database layer (Data Tier)
Client system handles Presentation layer, Application server handles Application layer and Server system handles Database layer.
