Shahtab Wahid
Virginia Tech
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Shahtab Wahid.
international conference on human computer interaction | 2009
Shahtab Wahid; Stacy M. Branham; Lauren Cairco; D. Scott McCrickard; Steve Harrison
Storyboarding offers designers the opportunity to illustrate a visual narrative of use. Because designers often refer to past ideas, we argue storyboards can be constructed by reusing shared artifacts. We present a study in which we explore how designers reuse artifacts consisting of images and rationale during storyboard construction. We find images can aid in accessing rationale and that connections among features aid in deciding what to reuse, creating new artifacts, and constructing. Based on requirements derived from our findings, we present a storyboarding tool, PIC-UP, to facilitate artifact sharing and reuse and evaluate its use in an exploratory study. We conclude with remarks on facilitating reuse and future work.
human factors in computing systems | 2011
Shahtab Wahid; D. Scott McCrickard; Joseph DeGol; Nina Elias; Steve Harrison
Storyboards offer designers a way to illustrate a narrative. Their creation can be enabled by tools supporting sketching or widget collections. As designers often incorporate previous ideas, we contribute the notion of blending the reappropriation of artifacts and their design tradeoffs with storyboarding. We present PIC-UP, a storyboarding tool supporting reappropriation, and report on two studies--a long-term investigation with novices and interviews with experts. We discuss how it may support design thinking, tailor to different expertise levels, facilitate reappropriation during storyboarding, and assist with communication.
Human technology : an interdisciplinary journal on humans in ICT environments | 2011
D. Scott McCrickard; Shahtab Wahid; Stacy M. Branham; Steve Harrison
Although designers often try to create novel designs, many designs are based on previous work. In this paper we argue for the reuse of rationale, in the form of claims, as a central activity in design, and explore how this can be used to inspire creativity. We present a design activity in which images and claims are reused to create a storyboard and illustrate how creativity and rationale complement each other. Our work serves to demonstrate that an appropriate design activity can be used to leverage creativity with the use of rationale.
designing interactive systems | 2010
Shahtab Wahid; Stacy M. Branham; D. Scott McCrickard; Steve Harrison
Artifacts can be used to inspire, guide, and create new designs. As approaches to design can range from focusing on inspiration to formalized reasoning, we seek to create and study artifacts that combine the use of images and rationale. In this paper, we contribute an understanding of the relationship between imagery and rationale through an investigation of an artifact made of both. Through a study of group design sessions, we find images can provide access to rationale, moments of inspiration can be balanced with rationale, and differences between images and rationale must be reconciled. We conclude with thoughts on how such artifacts might be leveraged by the design community.
information reuse and integration | 2004
Shahtab Wahid; J.L. Smith; Brandon Berry; Christa M. Chewar; D.S. McCrickard
Within the software development process, reuse at the requirements level has become an increasingly more compelling notion. Following a human-centric approach, this work focuses on both requirements and design solution reuse using a design knowledge repository. In recent years, many improvements have been made to increase reuse through design knowledge repositories, but retrieval of knowledge in the context of design activities continues to be a formidable challenge. We propose a new system, called CERVi, to browse a repository through visualization by exploiting relationships between units of knowledge (in our case, claims). These relationships are key to finding the most appropriate reusable knowledge based on design conditions. Testing shows that CERVi enhances the design knowledge selection process and helps users proceed through structured design decision making. Our approach would be most useful to those interested in unlocking the potential of design knowledge reuse.
Interactive Technology and Smart Education | 2007
Jason Chong Lee; Shahtab Wahid; D. Scott McCrickard; C. M. Chewar; Ben Congleton
Purpose – Decades of innovation in designing usable (and unusable) interfaces have resulted in a plethora of guidelines, usability methods, and other design tools. The purpose of this research is to develop ways for novice developers to effectively leverage and contribute to the large and growing body of usability knowledge and methods.Design/methodology/approach – This work presents the first extensive usage evaluation of an integrated design environment and knowledge management system, LINK‐UP. Key to this effort is the central design record (CDR), a design representation meant to prevent breakdowns occurring between design and evaluation phases.Findings – The case study results show that a design knowledge IDE centered on the CDR can help novices make connections between requirements data, design representations and evaluation data and better understand how to leverage that information to improve designs.Research limitations/implications – Future efforts are focusing on exploring the utility of this ap...
designing interactive systems | 2006
Shahtab Wahid
Reusing HCI design knowledge shows potential in allowing practitioners to design based on previously identified concerns. A reuse approach is presented that is based on claims, design knowledge units encapsulating tradeoffs. Fundamental characteristics of reuse include abstraction, selection, specification, and integration. Claim relationships provide the key to instantiating each of these traits within the claims reuse approach. A claims library is used implement a working model of the reuse process. Studies analyzing various components of this work validate existing efforts and provide impetus for future work.
human factors in computing systems | 2010
D. Scott McCrickard; Michael E. Atwood; Gayle Curtis; Steve Harrison; Jon Kolko; Erik Stolterman; Shahtab Wahid
Artifacts-representations that express properties or captured information-can serve to inspire, represent, and manage the decisions made throughout the design process. This workshop will explore how these artifacts are created, used, and reused during design projects, toward understanding the overall impact on the larger discipline of design. Through active engagement with novel design artifacts and methods, workshop participants will examine, categorize, and evaluate various design artifacts.
international conference on human-computer interaction | 2003
Jacob P. Somervell; Shahtab Wahid
human factors in computing systems | 2007
Jason B. Ellis; Shahtab Wahid; Catalina Danis; Wendy A. Kellogg