van Wijk, J.J.Jansen, F.W.Bronsvoort, W.F.2014-10-142014-10-1419851467-8659https://doi.org/10.1111/j.1467-8659.1985.tb00181.xNow that raster graphics has become a common tool in CAD/CAM systems, animation and many other applications, the need has arisen for user interfaces to graphics packages for these new applications. On the basis of a typology of the users, an analysis is presented of some of the choices which have to be made in developing these interfaces.10.1111/j.1467-8659.1985.tb00181.x5-10