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The Java Database Connectivity (JDBC) API gives Java access to many databases. Many JDBC Drivers drivers have already been written, and can be loaded directly into Ignition to allow connections to a number of databases. Ignition comes with many big drivers already installed, ie: i.e., MySQL Microsoft SQL Server, Oracle, etc.

The Java Virtual Machine (JVM) is an abstraction layer between a Java application and the underlying platform. As the name implies, the JVM acts as a “virtual” machine or processor. To the bytecodes comprising the program, they are communicating with a physical machine; however, they are actually interacting with the JVM. -techopidaJVM is actually part of the Java Runtime Environment (JRE). It is the JRE (JVM plus base classes) that enables Java bytecode to run on any platform. A programmer can develop Java code on one system and can expect it to run on any other Java enabled system without any adjustment.

When we talk about "'the JVM" ' in Ignition, we are referring to the underlying layer of code that is running everything. See also Java, JRE.

JavaScript Object Notation (JSON) is a lightweight language-independent data -interchange format. It's easy for humans to read and write , and for machines to parse and generate. It is based on a subset of the JavaScript Programming Language. -JSONJSON was derived from JavaScript, but as of 2017 many programming languages include code to generate and parse JSON-format data.

Ignition uses the JSON format to store much of its data internally, including Tags and component properties.