Technology journalism is the activity, or product, of journalists engaged in the preparation of written, visual, audio or multi-media material intended for dissemination through public media, focusing on technology-related subjects. Technology journalism includes genres such as news, reports, and analysis covering a wide variety of topics, including communications technologies, artificial intelligence, the Internet, social media, the IT industry, scientific research, robotics, and laws and policy regarding the digital world. They also report and cover inventions on the tech field as well as products of technology. In order to produce newsworthy articles, they interview the developers of these technology products and then they go ahead to report them in understandable concepts to their audience. One common genre of technology journalism, the product review, may involve the journalist experimenting with and expressing opinions about specific devices or applications, often accompanied by a score in percentage or number out of 5.