{'fraction_non_alphanumeric': 0.030056036678553236, 'fraction_numerical': 0.015792154865002548, 'mean_word_length': 5.0430769230769235, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Situation Awareness Analysis and Measurement Edited by Mica R. Endsley & Daniel J. Garland 2000, 383 pages, $49.95 Mahwah, NJ; Lawrence Erlbaum Associates ISBN 0-8058-2134-1

THE AUTHORS'stated goal in this fifth edition of an old standard is to bring order to the area of work design, a subspecialty of ergonomics. This large book is packed with charts, graphs, tables, algorithms, and equations, and it includes supplemental software. It is probably most appropriate as a text for a graduate-level ergonomics course in an engineering department. On the other hand, because of the density and breadth of material, this book would be a valuable, albeit demanding, tool for anyone who wishes to take the process of work design seriously. The book consists of 35 chapters organized into seven major sections. The self-described core of the book is Part IV Guidelines, which consists of 10 chapters reviewing traditional areas of ergonomics. These include error, temporal factors, workstation design and organization, manual materials handling, hand tools, and controls and displays. Each chapter is organized around a set of guidelines aimed at practical solutions and presented in quantitative form whenever possible. Other sections of the book include an overview of work and technology, an intensive introduction to engineering design and cost-effectiveness issues, and an equally intensive section on time standards and predetermined time systems. The style of writing is somewhat idiosyncratic, almost conversational, but at the same time data driven. The organization of the book necessarily involves a great deal of cross-referencing among chapters. Occasionally, this is problematic an understanding of methods-time measurement (MTM) is assumed on page 257, butMTM is not discussed until page 539. Also, an example problem used on how to drink beer more quickly is dated and inappropriate. On the whole, though, this is a valuable book for any practitioner.