Companies naturally expand over time, and each department purchases the equipment it needs for its tasks and workflow. Naturally, this leads to the creation of duplicate databases that frequently use various languages for the same data. Unique User IDs may be present in one solution, Customer IDs in another from a different department, and Client IDs in others. As a result, developing consistent processes between departments becomes challenging and complex. Even meetings between different departments can't sometimes solve this, since they are all using slightly different language, even though they are talking about the same thing in practice.
This continuous process produces bottom-up solutions, tools, and processes. In order to get all the many, slightly different, and mismatched elements to work together and provide the desired results, highly complicated tools, and translation layers are then required.
The development team then needs to somehow transform all this complexity into procedures they can comprehend and build software around.
As teams grow and processes get more complex, it is essential that everyone speaks the same language and agrees on how the process should function. A top-to-bottom strategy is required.
Enter Domain-Driven Design
Domain-driven design was required to handle all of this complexity. The initial ideas required to solve these problems were explored by Eric Evans in his book "Domain-Driven Design: Tackling Complexity in the Heart of Software."
Domain-driven design requires a system of cooperation as opposed to the creation of translation layers between different software solutions. Communication and understanding between technical and non-technical parties are essential. They must establish a shared language that will ultimately be advantageous to the company and the software solution being developed.
Domain-driven design focuses on 3 core principles:
This implies that domain-driven designs are a technique for the software development team to better comprehend an organization's difficulties by concentrating initially on how the business performs its work. To create a common language and conceptual models, close cooperation with subject matter specialists is necessary.
Domain-driven design defines a few essential terms and layers to overcome this communication barrier:
A few layers are also specified to aid in breaking down all of these separate elements and grouping them for software development:
The domain-driver design method has a number of benefits:
It is also important to note that lengthy development cycles might result from the numerous stakeholders involved. Domain-driven design is better suited for extremely complicated products when combined with other pre-existing methodologies (like Agile development), but it can be too much for simpler processes.