![]() ![]() ![]() They are constraints that impact the development of the system and are usually about what is not allowed. These are the hard rules for constructing systems. They are a crucial aspect of the architecture because they can drive the system toward a specific structure (pattern) They do not require knowledge of the system’s functionality but are required for the system to function properly. Quality attributes, known as “ ilities” or non-functional requirements of the system, such as scalability, flexibility, availability, etc. This refers to the style or pattern through which the system is implemented, such as Microservices, Event-Driven, Layered, etc. I like to call them the “ Pillars of Software Architecture.“ System Structure Neal Ford & Mark Richards, in their brilliant book Fundamentals of Software Architecture: An Engineering Approach, came up with four dimensions that make up software architecture. While agreeing on an accepted definition of software architecture seems impossible, we can definitely talk about the main ingredients of software architecture. There are many more descriptions, and so far it seems like we don’t have a consensus around the definition of software architecture amongst experts in the software space. “Architecture is about the important stuff… Whatever that is.” Ralph Johnson, a member of the Gang of Four, the authors of one of the most influential computer science textbooks: Design Patterns: Elements of Reusable Object-Oriented, explained it this way: “Architecture represents the significant decisions that shape a system, where significant is measured with the cost of change.” Grady Booch, a great contributor to the software industry who co-developed the UML modeling language, referred to architecture as: There are a lot of famous experts in the software world that have come up with their own definitions of software architecture. Positive features of Hexagonal Architectureīefore diving deeper into Hexagonal Architecture, let’s clarify what Software Architecture is.Pros and cons of Hexagonal Architecture.Our implementation of hexagonal architecture consists of:.Common challenges in building software systems. ![]()
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