BRL-CAD interactively displaying, editing, and interrogating geometric models. This suite became known as BRL-CAD. Development on BRL-CAD as a package subsequently began in 1983; the first public release was made in 1984. BRL-CAD became an open-source project in December 2004. The BRL-CAD source code repository is the oldest known public version-controlled codebase in the world that's still under active development, dating back to 1983-12-16 00:10:31 UTC. BRL-CAD BRL-CAD is a constructive solid geometry (CSG) solid modeling computer-aided design (CAD) system. It includes an interactive geometry editor, ray tracing support for graphics rendering and geometric analysis, computer network distributed framebuffer support, scripting,
Computer-assisted telephone interviewing manner: Automated Computer Telephone Interviewing (ACTI) is a technique by which a computer with speaker independent voice recognition capabilities asks respondents a series of questions, recognizes then stores the answers, and is able to follow scripted logic and branch intelligently according to the flow of the questionnaire based on the answers provided, as well as information known about the participant. Computer-assisted telephone interviewing Computer-assisted telephone interviewing (CATI) is a telephone surveying technique in which the interviewer follows a script provided by a software application. It is a structured system of microdata collection by telephone that speeds up the collection and