Ecological Interface Design (EID) is a framework for designing computer displays that has been appliedpredominantly to desktop displays. Extensibility of the framework to small format displays (defined bysmall physical dimensions of height and width) remains to be demonstrated through design and evaluation.This paper illustrates a specific design approach to the design of small format ecological displays as well asthe process of the design, for a tractable but complex system: a manual photo camera. Small formatdisplays present challenges for showing information in parallel. To meet this challenge, two methods basedon elements of the EID framework were developed and used to integrate information so that it could becondensed to fit on small displays: one based on system functional relationships and one based on taskrequirements. The abstraction hierarchy model (AH) was used to guide integration of the system functionalinformation. Requirements drawn from the decision ladder model (DL) were used to guide integrationbased on task requirements. The detailed description of the design approach and process provided hereshould help designers create small format ecological displays.
展开▼
