Describes Philips Interactive Laser Vision Authoring System (PHILVAS), a special-purpose authoring system designed to prepare programs for controlling interactive video systems. Ease of authoring with PHILVAS is illustrated by a case study and comparisons with two other dialog programing tools. Advantages of PHILVAS are listed. (MBR)

It is often claimed that techniques such as "multimedia" and the use of blended learning environments can be used to achieve powerful interactive pedagogies. Indeed, the advent of easy-to-use multimedia technologies has meant that a plethora of digital learning products is now becoming available. Despite the relative ease-of-use of these new…