During this chapter you've learned:

• Domain-Driven Design is not about technology; it's actually about providing value in the field you're working in by focusing on the model. Everyone takes part in the process of discovering the Domain, and developers and Domain Experts team up to build the knowledge base by sharing the same language, the Ubiquitous Language.
• Domain-Driven Design provides tactical and strategic modeling tools to design high-quality software. Strategic design targets the business direction, helps in defining the internal relationships, and technically protects each business service by defining strong boundaries. Tactical design provides useful building blocks for iterative design.
• Domain-Driven Design only makes sense in certain contexts. It's not a silver bullet for every problem in software, so whether or not you use it highly depends on the amount of complexity you're dealing with.
• Domain-Driven Design is a long-term investment; it requires active effort. Domain Experts will be required to collaborate closely with developers, and developers will have to think in terms of the business. In the end, the business customer is the one who has to be pleased.

Implementing Domain-Driven Design requires effort. If it were easy, everybody would be writing high-quality code. Get ready, because you'll soon learn how to write code that, when read, will perfectly describe the business your company operates on. Enjoy this journey!