Lau and Murnighan introduced the "faultline" concept into the group diversity literature. Faultlines are "hypothetical dividing lines that may split a group into subgroups based on one or more attributes." Faultlines result from the pattern, not just the dispersion, of attributes among group members. Measures using dispersion indices do not capture faultline potential. This article reports the development of faultline measures and the characteristics of these measures in two samples.

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Diversity is an increasingly important factor in organizational life as organizations worldwide become more diverse in terms of the gender, race, ethnicity, age, national origin, and other personal characteristics of their members. The exact impact of within-group diversity on small group processes and performance is unclear. Sometimes the effect of diversity seems positive, at other times negative, and in other situations, there seems to be no effect at all. In this article, we suggest that these types of findings might be explained by using a "group-development" model to examine the impact of diversity on group processes and performance. Our model uses concepts from Jackson et al.'s (1995), Milliken and Martins' (1996), and other models, as well as our own concepts, to show how diversity affects group development and performance. Among the concepts included in the model are readily detectable personal attributes, underlying personal attributes, cognitive paradigm dissimilarity, cognitive costs and rewards, diversity management skills, group behavioral integration, and cognitive performance resources. In the pages that follow, we will explain each of the components of the model and suggest specific hypotheses generated from the model.

Workforce management applications are expected to drive the next phase of enterprise‐wide applications market growth. But will firms actually benefit from these applications? Horror stories of failed technology implementation efforts abound and hardly inspire confidence. Treating installation of HR technology as a form of innovation, we introduce a model that describes the technology implementation process. The model brings to the fore various issues that merit the attention of academics and practitioners alike. It appears that firms that undertake technology initiatives with a view to enable the HR function to focus more on value‐added activities are the ones most likely to realize the full potential of technology. © 2004 Wiley Periodicals, Inc.

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