Understanding the business is a fundamental requirement for building successful software solutions. As programmers and software engineers, we must understand how companies operate within their business. By analyzing the business domain, we can distill the different subdomains. This will help us to design good systems that are aligned with the business goals, so consequently, this will ensure the success of the business.
Modeling our programs using DDD (Domain-Driven Design) helps us transfer the terminology, concepts and ideas of our business domain to the software we are developing. Aggregates and Entities are basic elements when applying DDD. One of the most misunderstood but fundamental concepts in DDD is aggregates. Defining them incorrectly can have disastrous consequences for our programs.
A critical aspect when implementing DDD is the correct definition of the Bounded Context (Contextos Acotados in Spanish). This will allow us, in turn, to define the aggregates and other elements of our system. Ubiquitous Language plays a decisive role in defining each of our bounded contexts.
One of the first things you hear when talking about DDD is the term "Ubiquitous Language". It is the basis of everything in DDD, using this language we will be able to define all the concepts of our business, it will help us communicate correctly and above all, it will facilitate the task of correctly modeling the domain of our solution.
Value Objects (VO) are a fundamental piece of Domain-Driven-Design (DDD) and object-oriented programming. They describe a concept of our domain layer.