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Instructional design requires practitioners to integrate best practices, use appropriate tools, and strategically apply current and emerging technologies to meet clients’ and organizations’ needs. Many practitioners achieve high levels of technical expertise in this way. However, the author of this poster suggests that, to become a leader in instructional design, practitioners must develop as experts through a process of acquiring horizontal expertise via two concepts described by Engeström, Engeström, & Kärkkäinen (1995). Polycontextuality describes how experts accomplish multiple simultaneous tasks within multiple communities of practices. Boundary crossing occurs when two different activities are linked together.
Wood, Rob L., "Becoming an Expert Instructional Designer" (2018). Scholars Showcase 2018: Innovations in Leadership and Learning. 85.