Three Tier Architecture CI CD On Kubernetes — Azure DevOps

A single-tier application is one in which the backend logic, database, and user interface are all located on the same server. It entails hosting all of the essential components of a software application or technology on a single server (or) platform.

Components all reside on the same single server.

Presentation → Business → Data Access layers in a single 📦 software package.

1-tier

Two-tier system consists of a server and a client. In a two-tier system, the database is stored on the server, and the interface installed on the client is used to access the database.

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1. Client Application
2. Database

2-tier

The 3-Tier Architecture, also known as the three-layer architecture, is a client-server software architecture that separates an application into three distinct layers (or) tiers.

1. Client-tier
2. Server-tier
3. Data Tier