Interoperability implies that the information does not need to be transformed during exchange; the different systems can use the data in its native format. Standards facilitate interoperability; for example, a web page marked up in Hypertext Markup Language (HTML) can be read on different browsers.
Interoperability is often a relative term. In the example of web pages, different browsers may render the code with subtle – and sometimes not so subtle – differences. A browser on one person's computer may display the text in 10-point Times Roman, another browser on another person's computer may display the text in 12-point Helvetica, and a third browser on another person's computer may read the text out loud.