Client-server architecture with 3 layers: presentation, business, and database. Each tier can be added or modified independently.

1 Tier Architecture Example

The system is based on a client-server architecture. This means that the user interface, business logic, and database are on different machines. This allows the program to be more scalable and flexible.

The architecture has 3 layers: a client presentation layer, an application/business logic layer, and a database layer. Each tier can be added or modified independently.

Presentation Layer

The presentation layer prepares the data sent by the application layer for transport and is responsible for a variety of tasks, including the conversion of codes and formats. This is important because different systems use different encoding methods, and the presentation layer ensures that the transmitted data can be understood by the receiving system. The presentation layer also performs data compression, which reduces the number of bits needed for transmission and improves network performance.

It is also capable of solving a number of issues related to string representation and the semantics and syntax of messages, as well as performing character translation functions. It may also encrypt and decrypt data, which helps prevent tampering and increases trust between the two devices.

Finally, the presentation layer translates the data into a format that can be transported over the session layer of the OSI model, and it can also convert protocols to make them compatible with each other. It supports many common formats, such as ASCII, EBCDIC and TIFF for text data, JPEG and GIF for images and MIDI, MPEG and QuickTime for video.

Business Layer

The business layer handles the processing and coordination logic that doesn’t align directly with the presentation or data layers. It also implements more general functions like security and transaction management.

The customer screen module in the business layer calls out to the customer dao (data access object) and order dao modules in the persistence layer to get customer and order information, respectively. These modules then execute SQL statements against the database to retrieve the corresponding data and pass it back up to the customer delegate in the business layer.

The 1-Tier Architecture uses a single computer to host the user interface, business and data layer. This allows the application to respond to requests very quickly. However, this can become inefficient if the system’s capacity is exceeded. 1-Tier systems are usually used in small applications. They are also very easy to maintain and cost-efficient. This type of architecture is suited for applications that need a fast response from the database and are not scalable to multiple users.

Data Layer

A data layer is an insulated layer of the website focused solely on data. It’s an incredibly important part of a website, one that allows you to collect and store rich customer information in a way that makes it more reliable across all tools and teams that use it.

Unlike the business and presentation layers, a data layer is tool-agnostic. This means that it will carry information about navigation from all tools, regardless of how the information was originally collected. It also ensures that any changes to the site structure or presentation layers won’t impact data collected from the page.

The data layer should be clearly defined, ensuring that both marketers and developers are on the same page when it comes to how data is collected. This includes agreeing on the naming conventions used for each piece of information and how it will be pushed to the data layer. A consistent naming convention will help every analytics tool understand how to interpret the information it receives.

Database Layer

The database layer is responsible for storing data. The application layer can call this layer to store and retrieve information from the database. It also contains functions that manage database connection logic like reading and writing operations to the database.

This layer keeps the data independent from the application server or processing logic, which increases scalability and performance. It is also used to ensure the integrity of the database and increase security.

In 1-Tier Architecture everything related to the User Interface, Business Logic and Database Layer is grouped into a single package. Whenever an instruction is given on the user interface, this layer uses its predefined logics to manipulate the database and the output is provided back to the user.

Another benefit of this architecture is that it is very easy to deploy and works well with most of the popular databases. In addition, this architecture is cost-effective as it does not require additional hardware.

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