Media choice is an important topic in the field of organizational communication. With a plethora of media choices (e.g., letter, e-mail, voice mail, telephone, face-to-face meetings), the question of how and why individuals choose which medium to use in what situation takes on additional importance. This concern is also shared in professional communication. I present a summary of a paper (Kinney and Watson) that tests the applicability of a prominent theory of media choice, media richness theory (MRT), to both traditional and new electronic forms of communication. I summarize the findings and present some implications for professional communication.

Style guides, the primary tool of technical editors, are as important as ever; actually, their increased uses and benefits can redefine the activities of editors. Specifically, style guides can be used to train new employees, to generate buy-in of subject-matter experts, and to define the process flow of document and product generation. Additionally, because they have the potential to control many style decisions and to integrate a variety of skills, computer-driven styles and Web style guides reinforce these increased uses and benefits and suggest the emergence of even more. Thus technical editors' roles may be expanded to include additional training functions, new marketing dimensions, and innovative research in multimedia design and development.

Does language reflect psychological reality, or does it form psychological reality? In other words, does the language we use to discuss something determine our attitudes toward that thing? Feminist literature has made much of the Sapir-Whorf Hypothesis, which asserts that linguistic bias is a cause rather than a symptom of social bias (F.W. Frank and P.A. Tretchler, 1989; F.J. Newmayer, 1986). However, conflicting views do exist on the direction of influence. The article discusses a recent study published by M.A. Dyrud illustrating a clear gender bias in computer clip art (see Business Commun. Quart., vol.60, no.4, p.30-51, 1997). Dyrud argues that if language, as a symbol system, both reflects and invents our reality, the same can be said of another symbol system, that of visual images. If the images are predominantly one gender, they may reflect cultural mores, but at the same time they help to sustain those beliefs by shaping our concept of what is real. Her study examines more than 14000 images in Windows based programs. She found that gender bias does exist in available visuals. In addition to a bias in presentation, clip art is also a man's world in terms of sheer numbers of images. Of 14108 images, there were three times as many male as female. The attitude of available images also differs: male figures-often of athletic build with full heads of hair-are usually in motion; female figures are usually standing, waiting, or even posing fashion-model style.

This study focuses on people's choices between electronic mail and voice mail. We found that users generally preferred electronic mail over voice mail for most communication purposes. These results do not support a hypothesis derived from media richness theory that voice mail would be preferred to e-mail for ambiguous situations. A more important finding is that other medium features besides richness influence individuals' media choices, specifically, medium features useful for retrieving and preparing messages and for working In group settings. From this and other evidence, we conclude that a complex set of social factors governs organizational media use in ways that neither theory can fully explain. Our findings have some interesting implications for designers of multimedia communication systems and for people like human resources specialists who are concerned with improving the effectiveness of professional work and the quality of working life.

Looks at the application of minimalist principles in technical documentation.

Technical communicators today must document complex applications used in complex environments. Information about users and use models is important under these conditions, especially if documentation will be presented on-line. Customer partnering, a method of information gathering that supplements surveys, contextual inquiries, usability testing, and interviews, provides one way of involving the users of complex applications in the design of information delivery systems. We used this method to help a client gather important information about user and use models and design a new information library for complex server computer systems.

Complex scientific graphics that reproduce well on paper may be difficult to display on computer because of the limited size and resolution of standard desktop monitors. This paper describes several methods for computer display of such large, dense graphics that preserve the usability of the graphics and support the ways users need to interact with the figures. Building on a simple structure of base panels and overlays joined by hypertext links, these methods provide ways of reorganizing figures into smaller graphical units that can be displayed easily, yet communicate all the information the original figure was designed to convey.

E-mail privacy in the workplace has emerged as one of the most complex ethical and legal issues confronting corporate communication in the electronic age. The paper discusses the array of legal and ethical concerns of e-mail privacy in the workplace. Building on the existing body of knowledge on the topic, the results of a research study are presented which explore the similarities and differences in e-mail usage and privacy perceptions among management level and administrative level employees. The survey, which polled 337 working professionals, confirmed the popular belief that companies are not effectively communicating their e-mail monitoring policies to their employees. Finally, recommendations are made to corporate communicators on how best to forge an e-mail communications policy that can reduce the risk of disputes, incidents, and lawsuits regarding e-mail privacy issues.

The paper examines how public relations professionals are dealing with the potential for sabotage, rumors, and misinformation spread via the Internet by computer hackers. The author examines the public relations profession from a systems theory perspective and attempts to outline skills necessary for organizational survival in the new information age. Original data was gathered from a sample population of 41 (n=85 for a 48% response rate) public relations professionals from the membership directory of the Public Relations Society of America. The author concluded from the data that the majority of public relations professionals currently view the Internet as a one-way communication channel. In addition, the data supported the notion that public relations professionals are limited by their lack of understanding of the two-way communication potential of the medium, the speed and power of messages traveling in cyberspace, and the current legal climate as it relates to Internet activity.

The paper explores the feasibility of using computer networks as communication survey research instruments. Also covered are the use of computers and computer networks in survey studies; a listing of the advantages and disadvantages of network surveys as compared with mail, phone, and fax surveys; a description of the development steps of network surveys; and a comparison of differences in network survey forms. Research issues are also discussed.

We identify various minimalist techniques and argue that, although these techniques can conflict with each other, together they provide a framework for designing computer documentation. A minimalist approach involves making tradeoffs within this framework rather than following a set of prescriptive techniques. Minimalism in this sense, is a pragmatic design philosophy aimed at the overall objective of "minimizing" obstacles to use. The framework covers the following design issues: word and page count, duplication, selective documentation of facilities, elaboration, task orientation, guided exploration, error recovery, and access.

The article discusses the advent of anytime, anywhere communication capability and its potential impact on our society. It examines the ways in which technology becomes accepted and integrated into our lives, including the role of human values. The report also focuses on both the beneficial and detrimental effects of emerging communication technology, such as its ability to put the disabled and disenfranchised on equal footing with the rest of the online population, and the possibility that individuals will become so isolated behind their computer screens that they will lose the ability to carry on face to face relationships. Finally, privacy and data security are discussed, as well as the limitations of physiology in a 24 hour society.

The paper discusses applying computer networks to cooperative distance learning for technical communication education. It first outlines applications of communication technologies employed in distance learning, and describes the design strategies of the applications. The paper's main focus is on the CORAL (Cooperative Remotely Accessible Learning) system for promoting cooperative distance learning currently under development in Taiwan. The CORAL system is a collective and collaborative project intended to integrate four major components in concept and construction: an interactive learning environment, educational foundations and implications, domain knowledge; and research efforts. One of CORAL system's goals is to aid science and engineering students in learning communication technology courseware. The CORAL development process, including its design approach, structure, courseware, and evaluation, is reported. Research issues are also addressed.

The article discusses designing electronic writing classrooms and the various decisions that classroom designers face during this complex task. In particular, it considers four key stages in the design process: establishing a plan, developing a room design, working within budgets, and maintaining a smoothly running computerized classroom. The article provides specific suggestions in these four stages informed by sound instructional goals appropriate to the teaching of technical communication.

From both a technological and educational perspective, cyber education creates a multitude of challenges for students and instructors. Both novice and experienced computer users alike must master the use of Internet tools quickly, while also working to overcome conceptual misunderstandings about the technology and its root metaphors. The technology also makes commenting on student documents cumbersome but does have the benefit of creating a digitized record of students' writing processes, while also allowing for the online publication of students' work. Other benefits include more active learning and better interactive collaboration. Preliminary assessments further indicate that, despite critics' concerns about the rigor and quality of distance learning, for a variety of technical and social reasons, student work is equal to and sometimes better than that of on-campus students.

Documentation is generally viewed in a secondary or support role to the sale and function of primary products. The study discusses the relationship between secondary and primary product characteristics and provides the results of a customer survey of computer hardware end users. Over 500 respondents (or customers) were surveyed regarding the impact of documentation on customers' perception of product quality. The results of a logistic regression showed that the level of satisfaction with documentation plays a critical role in explaining customer satisfaction with primary product quality. Consequently, before organizations make decisions regarding cuts in documentation, they should carefully evaluate documentation's effects on company performance. Implications for practice and research are also provided, with follow up and complementary studies suggested.

Although editors make extensive use of the computer in their work. Most editors still mark changes on paper using traditional editing symbols. There are, however, compelling reasons for editors to begin marking copy on the computer. We consider online editing from the perspective both of editors and their employers. We then focus on one aspect of online editing: the mark-up models embodied in various editing tools. We demonstrate that the different mark-up models and their particular implementations have major implications for the editing process, including the quality of edited material and the worklife satisfaction of editors and writers. We conclude by recommending that the technical communication community exert its influence on software developers and corporate technology planners to encourage the development and adoption of online editing tools that will be congenial to editors.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper examines the dominant metaphors that define and describe three basic components of hypertext (texts, nodes, and links), arguing that they contribute in central ways to the current treatment of this technology in technical communication. It includes a brief overview of the way metaphors filter computer-based tasks and functions, a discussion of hypertext metaphors of identity and the realms from which they are commonly appropriated, and some corollary implications for students and teachers of technical communication. In general, this paper contends that hypertext design choices are both productively and unproductively shaped by social as well as technological forces.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The increased use of telecommuting by information and knowledge workers in many fields has been fostered by the availability of enabling technologies. Notebook sized computers, easy-to-use software, access to information both private or public, and electronic mail capabilities available worldwide have made telecommuting possible. This paper examines some of the key factors involved in the telecommuting evolution. Coverage includes background on how telecommuting started and which current technologies lend themselves to telecommuting. Also, the article reviews the trends that are stimulating dramatic double-digit growth and describes corporate attitudes toward and experiences with telecommuting. Topics covered include corporate commitments, motivation, productivity, supervision and employee satisfaction.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Computer mediated communication (CMC) via the Internet is fast becoming a significant communication medium for technical and professional communicators. Research emerging from a number of disciplines is beginning to articulate the numerous social and organizational factors involved in the use of CMC. A significant question for communicators to ask is how organizations, which traditionally prefer structured and accountable communication, can exist in the open ended and unregulated world of the Internet. A rhetorical analysis of the protest over Lotus MarketPlace illustrates the complexity of traditional corporate communication in the nonhierarchical and often highly emotive forum of the Internet. Organizations can interact within this complexity more successfully by changing their rhetorical strategies.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Rapid developments in video and computer technologies are creating a new applications niche that unites technologies like computer, video, and audio with classical art forms such as music, painting, sculpture, and theater. Typical of such applications are multimedia, virtual reality, video, hypertext, and interactive video databases. We describe some of the ways that technology and creative forms are merging and discuss the impact of this convergence on the corporation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This article reviews the effects of the computer age on our environment. Although the usefulness of computer technology is inarguably an asset in today's world, the environmental implications are not yet fully understood by the majority of computer users. The subjects discussed in this article fall in three general areas: the direct effects of computers on the computer user and the workplace (ergonomics and telecommuting); the effects of the use of computers on the environment (consumption of electrical energy and solid waste disposal); and the environmental hazards of producing computers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Suggests that current theories about how even the simplest elements of graphical design function in professional communication do not adequately convey the complexity of the element's actual role in communication. By showing how producers of computer interfaces rely on the possibility of multiple interpretive trajectories in the use of any sign and how users of such signs respond in ways that are far from being totally predictable, we argue that it is best to think of the communication act not as a simple exchange of information between two minds (producer and user) but rather as a field of possibilities that requires flexibility and an experimental attitude from both the producer and the user. Examining theoretical developments in the history of physics and cognitive science, we contend that the dominant paradigms of understanding communication-the old cognitive (or computational) model and the social constructionist model as currently employed in the fields of composition and technical communication-fall short of accounting for even fairly straightforward exchanges of information. In place of the communication triangle that both of the old models rely upon, we offer a new model that uses the concept of "consensual domains" as the basis for a general theory of rhetoric. As a starting point for our investigation, we present the history of a still evolving sign-the trash-can icon in the user interface of the Macintosh operating system-from the perspective of a single (also still evolving) human user.

Although the use of e-mail is prevalent, few articles address the legal and ethical implications of e-mail monitoring. The paper argues that managerial monitoring of e-mail is ethically questionable because of its potential to violate privacy rights. After examining the legal guidelines related to e-mail monitoring, the article explores the ethical considerations surrounding this type of monitoring. Privacy issues and implications for management are addressed. The paper also offers suggestions for organizations that choose to monitor employees' e-mail.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper discusses the needs of the Russian academic and research community in non-commercial networking, as well as the technical base for it. It also describes developments in SUEARN (Soviet Union/European Academic and Research Network) and FREEnet (Network For Research, Education and Engineering).< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

At the end of 1990, a research company (NTC-HINTECH) was formed to develop new information technologies. This article describes a project to define formal algorithms for the creation of a sequence of nodes with certain semantic properties. It also describes a project for developing a generalized hypertext network, in which the relationship between the user and the system is dynamic and flexible.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Describes industrial information, which is information about industrial and consumer products, new technologies, and the engineering decision-making process. Today, in addition to the two information centers from the Soviet era, there are about 70 local information centers and more than 10,000 databases in Russia. The main potential information customer is the Russian government. The August 1991 coup, which led to wide-scale privatization, sharply reduced government subsidies to information centers. The production of information in a computer-readable form is now a large business, but creating this information remains a long and difficult process.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Describes the background of the creation of SOVAM TELEPORT, the first Soviet-American venture to offer international telecommunication services using computer networks, analyzes the problems it has faced and how it has attempted to solve them, describes the organization's customers and services, and speculates on the synergistic relationship between Russian society and its telecommunications industry.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

As part of Phase 4 of the NASA/DoD Aerospace Knowledge Diffusion Research Project, studies were conducted that investigated the technical communications practices of Dutch and U.S. aerospace engineers and scientists. The studies had the following objectives: (1) to solicit the opinions of aerospace engineers and scientists regarding the importance of technical communication to their professions, (2) to determine the use and production of technical communication by aerospace engineers and scientists, (3) to investigate their use of libraries and technical information centers, (4) to investigate their use of and the importance to them of computer and information technology, (5) to examine their use of electronic networks, and (6) to determine their use of foreign and domestically produced technical reports. Self-administered (mail) questionnaires were distributed to Dutch aerospace engineers and scientists at the National Aerospace Laboratory (NLR) in the Netherlands, the NASA Ames Research Center in the USA, and the NASA Langley Research Center in the USA. Responses of the Dutch and US participants to selected questions are presented in this paper.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

A study was conducted to examine employees' reactions to computer monitoring. Associated issues that were examined included the employees' level of stress, job satisfaction and commitment; their feelings of personal control; and their opinions regarding management's use of information gathered through monitoring. Results of the study indicated that, contrary to many reports, computer monitoring can be positive when used correctly and accompanied with effective management communication. Employees' levels of stress were negatively correlated with their feelings of job satisfaction, personal control, commitment to the organization, and the employees' feelings about the appropriateness of the way in which their managers used the information gathered by monitoring. These results highlight the importance of the responsible use of monitoring, the significance of communication, and the value of recognizing and rewarding good performance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Structured document processors (SDPs) are specialized document production systems integrating word processing, databases, document management, and other functions. SDPs make heavy use of standardized document layout and format to convey meaning. They replace less specialized word-processing or desktop-publishing programs when a project requires production of a large interlocking system of standardized documents or the rapid generation of data-intensive documents or periodicals. Three industry examples are examined to illustrate the ways industry is using SDPs and to describe strengths and weaknesses of this new approach to document production.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The availability of computers to university faculty members and the capability of those computer systems have increased exponentially over the past several years; however, many faculty still do not use the technology. The extent of diffusion of the capabilities of computer-mediated communication (CMC) among faculty is a core issue. This paper surveys literature on CMC with regard to diffusion of the practice among faculty. Through interviews and case studies, the authors examine characteristics of faculty who are active users of CMC as well as those who do not use the communication technology. Possible barriers to a more widespread use are examined, and implications for further research are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

E-mail style has received little attention from corporations and other institutions. The absence of stylistic guidelines may create problems: communicating inappropriately with some audiences, losing sight of the message purpose, or wasting company resources in other ways. To solve such problems, technical communicators can use their unique abilities to promote e-mail formats that consider the strengths and limitations of the medium in addition to the traditional concerns with audience, purpose, and content of messages.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper reports a survey on how users maintain context in an electronic mail (e-mail) dialogue and, in particular, the use of quoting as a response strategy. The target group belonged to a community of experienced users of computer-mediated communication systems: readers of Usenet newsgroups. The results showed that quoting a message, i.e., including it in a comment or reply, was a widely used technique in e-mail dialogues, but that the majority of respondents used it selectively. Factors that affected the use of quoting were the category of receiver and the length and nature of the message. Contrary to expectations, the results showed that users perceived the use of quoting as contributing to the sense of conversation when communicating in e-mail.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Kenneth Burke's New Rhetoric (1951) was meant to describe language as the basis of the interaction of individuals, objects, and courses of events in the human communication process. However, his theory can also be a useful rhetorical model to explain hypertext as a language event that relies on nested dialogues of visible text and invisible scripting. Moreover, Burke's belief that the purpose of discourse is to share knowledge with others provides a striking parallel to Vannevar Bush's original theory about hypertext. Even Burke's metaphor of a drama fits the purpose and process of hypertext.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This essay explores legal and ethical issues related to electronic mail (e-mail) systems in the United States and Canada. Among the recommendations made, based on analysis of actual cases, are: better education in computer-telecommunications technologies should be provided for government officials to enable them to make and uphold appropriate laws concerning electronic mail; clear published policies, consistent with the law and with the professional ethics of users, should be developed for e-mail systems; access to up-to-date legal information should be available to computer system operators and those who employ them; and ongoing monitoring of legal and ethical issues related to computer-telecommunications technologies (and applications such as e-mail) is needed to maximize the democratic potential of the Information Age.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper presents a longitudinal case study of the introduction of voice mail, applying media richness theory to develop and assess a set of 16 tasks with varying levels of equivocality, and to compare different media. Through t-tests, reliability, factor, and multidimensional scaling analyses, evaluation of task equivocality and voice mail is discussed and potential shortcomings of current approaches are highlighted. Results show that equivocality does not seem to be unidimensional and includes aspects of authority across organizational boundaries. Across all tasks, telephone would be most likely selected by respondents, but face-to-face and telephone were more likely to be selected for more equivocal tasks. Unlike prior studies, voice mail is perceived as similar to documents and face-to-face.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The application of computer tools to mediating and promoting collaborative design efforts between mutually distant parties has become feasible. Technology is again ahead of practice, and problems of assimilation have only begun to be explored. This paper postulates the requirements of environments for computer-mediated collaborative design in architectural practice, drawing upon experiences of design collaboration among schools of architecture on three continents and supplementing these with enquiries into design excellence in practice.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Two studies were conducted in order to investigate the technical communication practices of Russian and US aerospace engineers and scientists. Both studies had the same five objectives: to solicit the opinions of aerospace engineers and scientists regarding the importance of technical communication to their professions; to determine the use and production of technical communication by aerospace engineers and scientists; to seek their views about the appropriate content of the undergraduate course in technical communication; to determine aerospace engineers' and scientists' use of libraries, technical information centers, and online databases; and to determine the use and importance of computer and information technology to them. Responses to a self-administered questionnaire that was distributed to Russian aerospace engineers and scientists at the Central Aero-Hydrodynamic Institute (TsAGI) and to their US counterparts at the NASA Ames Research Center and the NASA Langley Research Center are presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Communication at the human-computer interaction level, is discussed. The presentation layer, or user interface, to computer programs acts as a shield to a far more complex array of processes. Using simple navigational and functional commands, the user can manipulate a computer program and achieve desired results quickly. This is not always the case, however, and deficiencies in both usability and information access continue to plague ordinary computer users. With increasing public reliance on computer-generated information, powerful computer applications must be amenable to nontechnical users. The most commercially viable and prominent of these efforts are explored, with particular emphasis on the evolving role of artificially intelligent technologies.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The early planning of a project organization and process is critical to the eventual success of a large, complex project. Beth Israel Medical Center, a 1180 bed teaching hospital in New York City, embarked in 1991 on a plan to implement clinical information computer systems throughout its facilities. This project is described. The project manager considered the unique cultural and organizational aspects of Beth Israel in order to develop a strategy for the project. Strategy objectives included promoting broad educational awareness, establishing quick project momentum and visibility, gaining the approval of a competing organizational department, and developing a productive and effective project team. The start-up phase of any project can make or break the project. If one does not set the correct tone and build the correct organization, one can easily doom the project before it has ever had a chance to develop.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The authors discuss a case history of technology transfer from a government laboratory to industry, to other laboratories, and to universities. The technology transferred is a computer program named KIVA that simulates air flow, fuel sprays, and combustion in practical combustion devices such as a automobile and truck engines, gas turbines that power jet aircraft, and industrial furnaces, heaters, and waste incinerators. The success of the transfer process derives not from presenting a finished product, but rather from working closely with KIVA users at every stage of development. By making the original source code available to a broad user community, a second avenue of transfer occurs as university engineering departments prepare students to enter industry.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

It is pointed out that writers and editors have powerful formatting and typographical tools available in word processing and desktop publishing software that can be applied to headings to visually reveal or signal the structure of text, and thus the author's perspective. Results of studies are presented which suggest that (1) visual discriminations among headings are easier for a reader to make when headings vary on fewer rather than more formatting and typographical dimensions, (2) size is the most powerful visual cue to a heading's hierarchical position, (3) relative size differences among different levels of headings of about 20% are more discriminable than are absolute size differences, and (4) formatting cues are perceived by readers consistently but not necessarily conventionally.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>