All Major Software Architecture Patterns Explained in 7 Minutes

Welcome to whiteboard programming, where we simplify programming with easy-to-understandwhiteboard videos and today I’ll be sharing with you, the most common software architecture patterns that are used by enterprises all across the globe. So, let’s get started first as basics. Let me briefly explain what isa software architecture patterns. Well, it is nothing but a pictorial. Representation of its system that serves as a blueprint for a system.it, provides an abstraction to manage the system complexity and establish a communication and coordination mechanism among different components. It also helps define a structured solution to metal the technical and operational requirements, while optimizing, the common quality, attributes like performance and security.

The primary goal of the architecture is to identify requirements that affect the structure of the application. A well-laid architecture reduces the business risks associated with building a technical solution and builds a bridge between business and technical requirements with that being said lets start understanding major software architecture patterns, starting with 1. layered pattern. This pattern can be used to structure programs that can be decomposed into groups of subtasks, each of which is at a particular level of abstraction.

Here each layer provides services to the next higher layer. The most commonly found4 layers of a general information system are as follows presentation, layer (, which is also knowns Ui layer,) application, layer, (, which is also known as service layer,), business logic, layer (, which is also known as domain layer.) data access layer (, which is also known as persistence, layer ) such a setting of software architecture, is widely used in building general desktop applications. Ande commerce, web applications, 2. client-serverpattern. This pattern consists of two parties: a server and multiple clients.

Here the server component will provide services to multiple client components clients, request services from the server and the server provides relevant services to those clients
Furthermore, the server continues to listen to client requests, this software architecture is generally used in online applications, such as email document sharing banking, etc. 3. master-slave pattern, this pattern consists of two parties, master and slaves. Here the master component distributes the work among, identical slave components and computes final result from the results which the slaves return This architecture pattern is employed, in database, replication methods and situations.

Where peripherals are connected to a bus in a system4Event-Bus pattern, this pattern primarily deals with events and has 4 major components, event, source event, listener, channel and event bus here the sources publish messages, to particular channels on an event, bus and listeners subscribe to particular channels.

Therefore, listeners are notified of messages that are published to a channel to which they have subscribed to before this software architecture pattern is used in android development and widely in building notification services: 5. Pipe-Filter pattern. This pattern can be used to structure systems, which produce and process a stream datasphere, each processing step is enclosed within, a filter component data to be processed is passed through pipes.

These pipes can be used for buffering or for synchronization purposes. This architecture pattern is used in building compilers and defining workflows in bioinformatics 6Broker pattern: this pattern is used to structure distributed systems with decoupled components. These components can interact with each other by remote service, invocations

A broker component irresponsible for the coordination of communication among components here, servers, publish their capabilities, (services and characteristics,), toa broker and clients request a service from the broker and the broker then redirects the client to, a suitable service from its registry. This particular architecture is generally employed. IMessage broker software such as apache Kafka, and boss messaging,7. peer-to-peer pattern in this pattern, individual components are known as peers. Peers may function, both as a client requesting services from other peers and as a server providing services to other peers.

A peer may act as a client or as a server or as both and it can change, its role dynamically with time it issued in building file-sharing networks, multimedia protocols and various blockchain-based products8Model-View-Controller pattern, this pattern, also known as much pattern, divides an interactive application into 3 parts as 1. model that contains the core functionality and data 2. view that displays the information to, the user (more than one view, may be defined,) 3. controller, which handles the input from the user. This is done to separate internal representations of information from the ways information is presented to and accepted from the user.

It decouples components: and allows efficient code, reuse, This software architecture pattern forms as the foundation of web frameworks, such as Django and rails.9 interpreter pattern. This pattern is used for designing, a component that interprets programs written in a dedicated language. It mainly specifies how to evaluate lines of programs known as sentences or expressions written in a particular language

The basic idea is to Havea class for each symbol of the language THISoftware architecture is used in database query languages such as SQL 10. blackboard pattern. Now this pattern is useful for problems for which nondeterministic solution strategies are known. The blackboard pattern consists of 3 main components. Blackboard in which a structured, global memory containing objects from the solution. Space knowledge source that is specialized modules with their own representation control component, that selects configures and executes modules. All the components have access to the blackboard
Components may produce NewData objects that are added to the blackboard.

Components, look for particular kinds of data on the blackboard and may find these by pattern matching with the existing knowledge. Source. This architectural pattern is widely used: in applications that use speech, recognition, vehicle identification and tracking etc.

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