Computer-human interface design consists of the effective functional synthesis and operational integration of three overlapping subdesign domains: information design, interaction design, and media design (see collateral definitions in this “Key Terms” section). Each of these three layers must be clearly defined, represented, and manifested in the user interface design solution. These three subdesign realms and components are synthesized holistically by the conceptual usability glue of the principles of universal design. User interface affordances can be evaluated through usability heuristics and the degree to which these principles have been effectively applied and realized in the user experience—providing a coherent, logically consistent, and robust (i.e., intuitive, accessible, easy to learn and use) systems design.
Published in Chapter:
Human-Factors Design for Public Information Technology
Vincent E. Lasnik (Independent Knowledge Architect, USA)
Copyright: © 2008
|Pages: 12
DOI: 10.4018/978-1-59904-857-4.ch059
Abstract
This chapter examines the realm of human-factors design for public information technology in the rapidly evolving postmodern knowledge age of the 21st century, with special focus on how new research and development into human cognition, perception, and performance capabilities is changing the design function for IT systems and products. Many “one size fits all” IT designs are neither adaptive nor adaptable—promulgating a top-down technological imperialism penetrating every aspect of their use. The communication, collaboration, and interaction infrastructure of IT organizations thus remains acutely challenged with enduring problems of usability, learnability, accessibility, and adaptability. As the function and form of products undergo increasingly rigorous scrutiny, one important design goal is emerging as a paramount priority: improving the usability of products, tools, and systems for all stakeholders across the enterprise. It is therefore important to briefly describe emerging human-factor design knowledge and practices applicable to organizations that invent, incubate, innovate, prototype, and drive the creation and application of public IT. The findings here suggest the most effective strategies to manage and augment user-centered design (UCD) endeavors across a wide array of public IT products and organizations.