Some of the following points provide clarity about an architectural pattern definition:

• It serves as blueprint for your system
• It is general and reusable in nature
• It gives you a functional understanding about how components are going to interact with one another
• Architecture styles are also known as architecture patterns
• Non-functional decisions are formed and divided by the functional requirements
• A well-laid architecture reduces the business risks associated with the building solution and helps you define a clear-cut understanding between business and technical requirements, and it also builds relationships among those components

The following mind map diagram gives different types of Architectural Patterns used in the IT world where you have easily heard about the Client Server Pattern, the Master Slave Pattern, the Model-View-Controller Pattern, and Peer to Peer Pattern:

Design pattern: Functional requirements are defined in it, and it helps you decompose a system into components and defines their interaction to meet the functional and non-functional requirements of your system. There are many design patterns such as Execution, Computational, Structural, Algorithm Strategy, and an Implementation Strategy Patterns that you can use to build your system, and you can pick one pattern at a time to focus more on one part and move on to another pattern once you have almost achieved the previous pattern's implementation. The following diagram describes a design pattern more closely to build software:

Senior technicians, such as solution architects, application architects, and enterprise architects help you use architecture and design patterns in an initial phase for any software development or in your infrastructure setup.

In our chapter, we will focus on distributed computing and the operational aspects, where we will be looking at the new trends where people are considering security, reliability, resiliency, performance optimization, and passing the message in a distributed world in async application, management, and monitoring of critical infrastructure components where we are having different design patterns altogether.