2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/32000In this position paper we propose a process model that provides a development infrastructure in which the usability engineering and software engineering life cycles co-exist in complementary roles. We describe the motivation, hurdles, rationale, arguments, and implementation plan for the need, specification, and the usefulness of such a model.This document contains 8 pages with 5 figures. This appeared in Bridging the SE & HCI Communities Workshop in INTERACT 2003 (http://www.se-hci.org/bridging/interact)Human-Computer InteractionH.5.0; K.6.1; K.6.3; D.2.9text