JSR-352 defines the open standard for Java Batch. There is a very detailed specification available online that precisely defines the proper behavior for any JSR-352 implementation (of which there are several). The purpose of this paper is not to replace the specification. In fact, there will be many things covered careful in the specification which we will just gloss right over here. The goal of this paper is to simply convey the general idea of the Java Batch model in a more approachable style. If you read this document and find yourself asking “Well, what happens if…” you should go read the specification. Hopefully this document will raise those questions in your mind, because it means you’ve understood the basics enough to have complex questions. Enjoy.