Summary
This chapter introduced the main concepts in Jina: Document, DocumentArray, Flow, and Executor. You should now have an overview of what each of those concepts are, why they are important, and how they relate to each other.
Besides understanding the theory of why Document, DocumentArray, Flow, and Executor are important while building your search engine, you should also be able to create a simple Document and assign its corresponding attributes. As you are done with this chapter, you should also be able to create your own Executor and spin up a basic Flow.
You will use all of this knowledge in the next chapter, where you will learn how to integrate these concepts together.