Designing the user interface : considering the concept of complexity
Frank, John B.
MetadataShow full item record
The human-computer interface may be defined as the dialogue that allows communication between the human and the computer, the purpose of such dialogue being the accomplishment ofsome task. This thesis explored the relationship between task complexity, interface complexity, and user performance in the context of direct manipulation interfaces. Two different levels of task and interface complexity were introduced to subjects in two groups. Each group was presented with the identical task sets. There were three tasks sets, one a practice set, one a simple set requiring five inputs, and a complex task set requiring 24 inputs. The dependent variables measured were 1 ) task completion time, 2) number of errors committed, and 3) number jof help references needed. Results indicate that the complex interface took longer to learn, and more errors were made while learning. Results for the simple task set favored the simple interface as well, but once the subject learned the interface, the completion time was shorter and there were fewer errors made during the accomplishment of the complex task set on the complex interface. With an increase in task complexity, subjects using the complex interface showed an improvement in performance.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
The effect of task complexity on user interfaces: a comparison of command language interface and direct manipulation interfaces. Reinhard, Nancy A. (Monterey, California. Naval Postgraduate School, 1991-03);A computer-user interface is the software that communicates the user's inputs to the computer and returns information from the computer back to the user. A variety of user interfaces have been developed, including ...
Felt, Aaron J. (Monterey, California: Naval Postgraduate School, 2014-12);This thesis solves the problem of a lack of a complete, simple ground station network interface standard. A federated satellite ground station network (FGN) model and computer interface are developed that extend the use ...
Peabody, Charles B. (Monterey, California. Naval Postgraduate School, 1991-09);This thesis presents criteria and necessary features by which to evaluate and design a good graphical user interface (GUI) for a Multimedia Database Management System (MDBMS). This material is also applicable to a traditional ...