Software Architecture Vs. Software Design

Numerous individuals don’t generally know the contrast between software architecture and software design. Even the experienced developer and engineers find this line blurry, and it is almost sure that they mixed up the concept of software architecture and design patterns to define them.  

Software Architecture  

Software architecture is the concept of adapting the software characteristics into a structured solution to ensure that the software is flexible, scalable, and has reusability and security. The software solution needs to meet technical and business desires.   

Characteristics of the Software Architecture  

The definition could lead you to know about the software’s characteristics that impact the software architecture design. The software’s features refer to the business and operational requirements that need to be well implemented.  

For instance, when a product owner says they are competing in a quickly evolving markets, they should adjust their plan rapidly. The software should then be extendable, modular, and viable, which gives a clear pathway to accommodate the urgent requirements in a small-time frame.  

Software Architecture Patterns  

When software architecture patterns cross through your mind, then “Microservices” could be your obvious answer. It’s because it is so popular. Serverless Architecture, Event-Driven Architecture, and layered pattern are some other few examples of it.   

Serverless Architecture  

Serverless architecture is the application solution that relies on third-party services to handle the complication of the servers and backend management. This architecture is divided into two main categories. The first is “Backed as Service (BaaS),” and the second is “Function as Service (FaaS).” This architecture helps the developers save a lot of time by handling and fixing the bugs and server regular tasks.  

Amazon AWS “Lamda” is the popular provider to offer serverless API.  

Event-Driven Architecture (EDA)  

EDA is a software design pattern that enables us to detect a series of events and deal with them is near real-time. The event is nothing but the state’s change, or an update, like checking out the cart’s product on the e-commerce website. Event-driven architecture has three components: event producers, event routers, and event consumers. A producer publishes an event to the router, which filters and pushes the events to consumers. Producer services and consumer services are decoupled, which allows them to be scaled, updated, and deployed independently.  

Microservices Architecture  

Microservices Architecture has become one of the best overall architecture from the past few years. This architecture suggests developing a small and independent modular service. Each service is designed either to solve the specific issue or to perform a unique dedicated task. Lastly, all those designed modules are associated with each other through the well-defined API to serve the business goal.  

Software Design  

Software Architecture is considered just the software’s skeleton. The software design is still a phenomenon to convert the listed characteristics into the functional software by undergoing the code level design.   

The popular evergreen pattern for the Software Design is the SOLID principle, and it stands for Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion Principles.  

  • Single Responsibility means that each class should be of a single purpose with only one Responsibility.  
  • Open Closed Principle means class would be open for the extension but closed for the modifications. In simple words, new functionality can be added to the class but cannot modify the existing one.  
  • Liskov Substitution Principle suggests the developer uses inheritance to hamper the application logic over time.  
  • Interface Segregation means a client should never be forced to implement an interface that they don’t use.  
  • Dependency Inversion Principles states that high-level modules should only depend upon abstractions but not on the low-level module.