Some effects of system information in instructions for use

An experiment was carried out to investigate whether it is useful to add system information to procedural information in instructional text. It was assumed that readers of instructions construct both a procedural and a system mental model, and that the latter enables the readers to infer possible missing information in procedural instructions. Moreover, it was assumed that system information would increase the cognitive load during reading and practicing, and that it would affect the appreciation of the instructions as well as the self-efficacy of the reader. The participants in the experiment read instructions and practiced with a fictitious machine before performing a number of tasks and answering a questionnaire. The results indicate that system information increased the cognitive load during reading and decreased self-efficacy, while the instructional text with system information was judged as more difficult. The effect on performance is limited: system information leads to faster performance for correctly completed tasks

Making sense of step-by-step procedures

Procedural instructions that consist of only a sequence of steps will probably be executable, but nevertheless ¿meaningless¿ to users of technical devices. The paper discusses three features that can make procedural instructions more meaningful: adding functional coordinating information, adding information about the use of the technical device in real life, and adding operational information about how the device works. The research literature supports the effectiveness of the first feature, but offers little evidence that real life elements enhance understanding of instructions. As for operational information, the research suggests that users are willing to read it, and that it contributes to better understanding and performance in the long term, but only if it is closely related to the procedure. As a conclusion, we propose a theoretical framework that assumes three levels of mental representation of instructions: syntactical, semantic, and situationa

Which way to turn? Guide orientation in virtual way finding

In this paper we describe an experiment aimed at determining the most effective and natural orientation of a virtual guide that gives route directions in a 3D virtual environment. We hypothesized that, due to the presence of mirrored gestures, having the route provider directly face the route seeker would result in a less effective and less natural route description than having the route provider adapt his orientation to that of the route seeker. To compare the effectiveness of the different orientations, after having received a route description the participants in our experiment had to ‘virtually’ traverse the route using prerecorded route segments. The results showed no difference in effectiveness between the two orientations, but suggested that the orientation where the speaker directly faces the route seeker is more natural

Accessible Website Content Guidelines for Users with Intellectual Disabilities

Background: The W3C Web Accessibility Initiative has issued guidelines for making websites better and easier to access for people with various disabilities (W3C Web Accessibility Initiative guidelines 1999). - \ud Method: The usability of two versions of a website (a non-adapted site and a site that was adapted on the basis of easy-to-read guidelines) was tested with two groups of 20 participants. One group had intellectual disabilities but could read, the other group had no identified intellectual disabilities. In a 2 × 2 experimental design, it was investigated whether the easy-to-read website was indeed better accessible and usable for the participants with intellectual disabilities. - \ud Results: The adaptation of the website worked well for participants with intellectual disabilities. Users without identified intellectual disabilities were as effective with the adapted site as they were with the non-adapted site. - \ud Conclusion: The results form an empirical basis for recommendations about applying guidelines for easy-to-read text on websites for people with intellectual disabilities

Watch out for the preview: The effects of a preview on the usability of a Content Management System and on the user's confidence level

As time moves on, a trend crystallizes that sets new requirements on content management systems. The circle of users shifts from a small technically experienced group to a large network of inexperienced editors. Literature stresses that a higher need for usability is present if personnel with a low grade of human computer interaction expertise is using a system. But how can system designers accomplish a high level of usability? This study suggests a preview as an important factor for strengthening the usability (effectiveness, efficiency and satisfaction) of a content management system. The findings of this study support the hypothesis: the results showed that a preview enhances the userspsila satisfaction with the system. Moreover, the study shows that the userspsila confidence to be able to work with the system is an important factor; the results showed positive correlations between confidence and satisfaction and between confidence and effectiveness

Instructional videos for seniors over 75:The effects of addressing potential errors in user instructions

Using a laptop or tablet computer can be challenging for senior users, but using these devices can facilitate communication with family and care-givers. The goal of the current study is to get more insight in how to instruct and train senior users to use the keyboard of a tablet computer that is specifically designed for seniors (Compaan). Research has suggested that addressing errors and showing how to correct these errors can have positive effects on the learning process. Two series of video instructions were developed. In the first series, it was explained how to use the tablet computer without addressing potential errors. In the second series, potential errors were addressed. Forty seniors (75-97 years of age) participated in this study. The participants were asked to familiarize themselves with the Compaan, with the help of one of the series of instructional videos. Their learning progress, task effectiveness, and their self-efficacy and satisfaction levels were measured. The results showed that most participants were interested and motivated to learn to use the tablet computer. Participants who watched the videos in which potential errors were addressed performed somewhat better than the other group.</p

Storytelling:The Effects of Corporate Stories on the Appreciation of Organizations

Organizations increasingly resort to corporate stories in order to positively influence their stakeholders' perceptions. However, no substantive results are available that prove the effects of corporate stories. Apart from that, recommendations on which content elements should be included in corporate stories, nearly all rely on conceptual theories and not on empirical studies. The first goal of this study is to test whether corporate stories have more positive effects on the appreciation of organizations than a plain, factual summary of corporate information. The second goal is to take the first steps towards composing guidelines on what comprises a good story. Based on an online experiment among 201 participants, the effects of corporate stories as compared to corporate information on the appreciation of organizations were measured, in the context of a for-profit and a not-for-profit organization. Subsequently, the effects of including the elements `conflict' and `character' were examined. The results indicated that the effects of a story were less beneficial than expected. Statistical tests showed only a few differences between participants who read corporate information and those who read a story. In addition to that, no effects were found for the presence of a conflict and a character in a corporate story

Entertaining or functional:An analysis of visuals in Chinese and Western household appliance manuals

In today's global world, understanding local user preferences becomes an increasingly essential skill, especially for technical communicators who design products for people in other cultures. This study attempts to analyze and compare visuals in Chinese and Western manuals because visuals play an essential role in manuals. Based on a systematically designed coding scheme, we analyzed 50 Western and 50 Chinese household product manuals (1895 pages in total) designed in their own cultures and published after 2007. Results show many differences between Chinese and Western manuals with regard to visuals. All differences seem to point in the same direction; Chinese visuals appear to have an entertaining function while Western visuals are not meant to entertain the readers but have an informative or instructive function. This study aims to enhance the mutual understanding of information designers in cross-cultural manual design.</p

Effects of declarative information in instructions for use

Adding declarative information to the essential procedural information in instructions for use might have different effects. Previous research examined the effect of declarative information on the ability to work with the system that is described in the instructions. However, the results of the various experiments were not conclusive. Moreover, other possible effects of declarative information were never investigated before. In the present experiment, the effects of two different types of declarative information on task performance, on cognitive load and on self-efficacy were examined. The results demonstrated that the two types of declarative information negatively affected cognitive load and self-efficacy ratings. The effects on task performance were positive, but moderate