A competitive usability study was employed to measure user performance and user preference for immersive virtual environments (VEs) with multimodal gestural interfaces when compared directly with nonstereoscopic traditional CAD interfaces that use keyboard and mouse. The immersive interfaces included a wand and a data glove with voice interface with an 86 in. stereoscopic rendering to screen; whereas, the traditional CAD interfaces included a 19 in. workstation with keyboard and mouse and an 86 in. nonstereoscopic display with keyboard and mouse. The context for this study was a set of “real world” engineering design scenarios. These design scenarios include benchmark 1—navigation, benchmark 2—error finding and repair, and benchmark 3—spatial awareness. For this study, two populations of users were employed, novice (n = 15) and experienced (n = 15). All users experienced three successive trials to quantify the effects of limited learning. Statistically based comparisons were made using both parametric and nonparametric methods. Conclusions included improved capability and user preference for immersive VEs and their interfaces were statistically significant for navigation and error finding/repair for immersive interfaces.

References

References
1.
Johnson
,
M. W.
,
2002
, “
Boeing Phantom Works—Personal Communication on VR Design
,” Dr. George Hazelrigg of the National Science Foundation, Arlington, VA.
2.
Nielsen
,
J.
,
1993
,
Usability Engineering
,
1st ed.
,
Academic Press
,
San Diego, CA
.
3.
Gould
,
J. D.
, and
Lewis
,
C.
,
1985
, “
Designing for Usability: Key Principles and What Designers Think
,”
Commun. ACM
,
28
(
3
), pp.
300
311
.10.1145/3166.3170
4.
ISO (International Standards Organization)
,
2003
,
Guidance on Usability
,
ISO
,
Geneva, Switzerland
.
5.
Hix
,
D.
,
Swan
,
J. E.
,
Gabbard
,
J.
,
McGee
,
M.
,
Durban
,
J.
, and
King
,
T.
,
1999
, “
User-Centered Design and Evaluation of a Real-Time Battlefield Visualization Virtual Environment
,”
IEEE
Virtual Reality
, Houston, TX, Mar. 13–17, pp.
96
103
.10.1109/VR.1999.756939
6.
Gabbard
,
J.
,
Hix
,
D.
, and
Swan
,
J. E.
,
1999
, “
User Centered Design and Evaluation of Virtual Environments
,”
IEEE Comput. Graphics Appl.
,
19
(
6
), pp.
51
59
.10.1109/38.799740
7.
Gabbard
,
J.
,
Swartz
,
K.
,
Ritchey
,
K.
, and
Hix
,
D.
,
1999
, “
Usability Evaluation Techniques: A Novel Method for Assessing the Usability of an Immersive Medical Visualization VE
,”
Visual Worlds and Simulation (VWSIM'99)
, San Francsico, CA, pp. 165–170.
8.
Nielsen
,
J.
,
1993
, “
Iterative User Interfaces Design
,”
IEEE Computer
,
26
(
11
), pp.
32
41
.10.1109/2.241424
9.
Poupyrev
,
I.
,
Weghorst
,
S.
,
Billinghurst
,
M.
, and
Ichikawa
,
T.
,
1997
, “
A Framework and Testbed for Studying Manipulation Techniques for Immersive VR
,”
ACM
Conference on Virtual Reality Systems and Technology
, Lausanne, Switzerland, pp.
21
28
.10.1145/261135.261141
10.
Stanney
,
K. M.
,
Mollaghasemi
,
M.
,
Reaves
,
L.
,
Breaux
,
R.
, and
Graeber
,
D. A.
,
2003
, “
Usability Engineering of Virtual Environments (VEs): Identifying Multiple Criteria That Drive Effective VE System Design
,”
Int. J. Hum. Comput. Stud.
,
58
(
4
), pp.
447
481
.10.1016/S1071-5819(03)00015-6
11.
Kotranza
,
A.
,
Lok
,
B.
,
Deladisma
,
A.
,
Carla
,
M.
, and
Lind
,
D. S.
,
2009
, “
Mixed Reality Humans: Evaluating Behavior, Usability, and Acceptability
,”
IEEE Trans. Visualization Comput. Graphics
,
15
(
3
), pp.
369
382
.10.1109/TVCG.2008.195
12.
Gill
,
S. A.
, and
Ruddle
,
R. A.
,
1998
, “
Using Virtual Humans to Solve Real Ergonomic Design Problems
,”
International Conference on Simulation
, York, UK, pp.
223
229
.10.1049/cp:19980641
13.
Gupta
,
R.
,
Whitney
,
D.
, and
Zeltzer
,
D.
,
1997
, “
Prototyping and Design for Assembly Analysis Using Multimodal Virtual Environments
,”
Comput. Aided Des.
,
29
(
8
), pp.
585
598
.10.1016/S0010-4485(96)00093-0
14.
Sreedharan
,
S.
,
Zurita
,
E. S.
, and
Plimmer
,
B.
,
2007
, “
3D Input for 3D Worlds
,”, 19th Australasian Conference on Computer-Human Interaction: Entertaining User Interfaces.
OZCHI '07
, pp. 227–230.10.1145/1324892.1324940
15.
Simon
,
A.
,
2005
, “
First Person Experience and Usability of Co-Located Interaction in a Projection-Based Virtual Environment
,”
ACM
Symposium on Virtual Reality Software and Technology
, pp.
23
30
.10.1145/1101616.1101622
16.
Patel
,
H.
,
Stefani
,
O.
,
Sharples
,
S.
,
Hoffman
,
H.
,
Kraseitanidis
,
I.
, and
Amditis
,
A.
,
2006
, “
Human Centered Design of 3-D Interaction Devices to Control Virtual Environments
,”
Int. J. Hum. Comput. Stud.
,
64
(
3
), pp.
207
220
.10.1016/j.ijhcs.2005.08.010
17.
Banerjee
,
P.
, and
Basu-Mallick
,
D.
,
2003
, “
Measuring the Effectiveness of Presence and Immersive Tendencies on the Conceptual Design Review Process
,”
ASME J. Comput. Inf. Sci. Eng.
,
3
(
2
), pp.
166
179
.10.1115/1.1578500
18.
Johansson
,
P.
, and
Yennerman
,
A.
, “
Immersive Visual Interfaces-Assessing Usability by the Effects of Learning/Results From an Empirical Study
,”
ASME J. Comput. Inf. Sci. Eng.
,
4
(
2
), pp.
124
131
.10.1115/1.1740775
19.
Thomas
,
P.
, and
Macredie
,
R. D.
,
2002
, “
Introduction to the New Usability
,”
ACM Trans. Comput. Hum. Interaction
,
9
(
2
), pp.
69
73
.10.1145/513665.513666
20.
Chu
,
C.-C.
,
Dani
,
T.
, and
Gadh
,
R.
,
1998
, “
Evaluation of Virtual Reality Interface for Product Shape Designs
,”
IIE Trans.
,
30
(
7
), pp.
629
643
.
21.
Herndon
,
K.
,
Van Dam
,
A.
, and
Gleicher
,
M.
,
1994
, “
The Challenges of 3D Interaction
,”
Conference on Human Factors in Computing Systems
, Boston, MA, pp.
36
43
.
22.
Kaur
,
K.
,
Sutcliffe
,
A.
, and
Maiden
,
N.
,
1999
,
A Design Advise Tool Presenting Usability Guidance for Virtual Environments
,
British HCI Group, King's Manor, University of York
,
York, UK
.
23.
Computer Science Department—Communications Research Group, University of Nottingham,
1997
, “
COVEN—Collaborative Virtual Environments—Usage Evaluation
,” Public Delivrable Report of ACTS, Project No. AC042.
24.
Nomura
,
J.
, and
Sawada
,
K.
,
1999
, “
Virtual Reality Technology and Its Applications to Industrial Use
,”
Control Eng. Pract.
,
7
(
11
), pp.
1381
1394
.10.1016/S0967-0661(99)00114-8
25.
Ware
,
C.
,
Arthur
,
K.
, and
Booth
,
K.
,
1993
, “
Fish Tank Virtual Reality
,”
Conference on Human Factors in Computing Systems
, Amsterdam, The Netherlands, pp.
37
42
.10.1145/169059.169066
26.
Bolt
,
R.
, and
Herranz
,
E.
,
1992
, “
Two-Handed Gesture in Multi-Modal Natural Dialog
,”
ACM
Symposium on User Interface, Software, and Technology
, Monterey, CA, pp.
7
18
.10.1145/142621.142623
27.
Wexelblat
,
A.
,
1995
, “
An Approach to Natural Gesture in Virtual Environments
,”
ACM Trans. Comput. Hum. Interaction
,
2
(
3
), pp.
179
200
.10.1145/210079.210080
28.
Hand
,
C.
,
1997
, “
A Survey of 3D Interaction Techniques
,”
Comput. Graphics Forum
,
16
(
5
), pp.
269
281
.10.1111/1467-8659.00194
29.
Stork
,
A.
, and
Maidhof
,
M.
,
1997
, “
Efficient and Precise Solid Modeling Using a 3D Input Device
,”
ACM
Conference on Solid Modeling
, Atlanta, GA, pp.
181
194
.10.1145/267734.267782
30.
Trika
,
S. N.
,
Bannerjee
,
P.
, and
Kashyap
,
R. L.
,
1997
, “
Virtual Reality Interfaces for Feature-Based Computer-Aided Design Systems
,”
Comput. Aided Des.
,
29
(
8
), pp.
565
574
.10.1016/S0010-4485(96)00092-9
31.
Tushar
,
D.
, and
Gadh
,
R.
,
1997
, “
Creation of Concept Shape Designs Via a Virtual Reality Interface
,”
Comput. Aided Des.
,
29
(
8
), pp.
555
563
.10.1016/S0010-4485(96)00091-7
32.
Jayaram
,
S.
,
Wang
,
Y.
,
Jayaram
,
U.
,
Lyons
,
K.
, and
Hart
,
P.
,
1999
, “
Virtual Assembly Design Environment
,”
IEEE Virtual Reality Annual International Symposium
, Los Alamitos, CA, pp.
172
179
.
33.
Jayaram
,
S.
,
Connacher
,
H.
, and
Lyons
,
K.
,
1997
, “
Virtual Assembly Using Virtual Reality Techniques
,”
Comput. Aided Des.
,
29
(
8
), pp.
575
584
.10.1016/S0010-4485(96)00094-2
34.
Lu
,
S. C.-Y.
,
Shpitalni
,
M.
, and
Gadh
,
R.
,
1999
, “
Virtual and Augmented Reality Technologies for Product Realization
,”
CIRP Ann. Manuf. Technol.
,
48
(
2
), pp.
471
495
.10.1016/S0007-8506(07)63229-6
35.
Bowman
,
D.
,
Johnson
,
D.
, and
Hodges
,
L.
,
1999
, “
Testbed Evaluation of Virtual Environment Interaction Techniques
,”
ACM
Conference on Virtual Reality Systems and Technology
, London, UK, pp.
26
33
.10.1145/323663.323667
36.
Evans
,
P.
,
Vance
,
J.
, and
Dark
,
V.
,
1999
, “
Assessing the Effectiveness of Traditional and Virtual Reality Interfaces in Spherical Mechanism Design
,”
ASME J. Mech. Des.
,
121
(
4
), pp.
507
514
.10.1115/1.2829490
37.
Antonya
,
C.
, and
Talaba
,
D.
,
2007
, “
Design Evaluation and Modification of Mechanical Systems in Virtual Environments
,”
Virtual Reality
,
11
(
4
), pp.
275
285
.10.1007/s10055-007-0074-6
38.
Zhang
,
R.
,
Oliver
,
J. H.
,
Noon
,
C.
,
Gilmore
,
B.
,
Winer
,
E.
, and
Duncan
,
J.
,
2007
, “
Immersive Product Configurator for Conceptual Design
,”
ASME
Paper No. DETC2007, pp.
1403
1413
. 10.1115/DETC2007-35390
39.
Zhang
,
R.
,
Noon
,
C.
,
Winer
,
E.
,
Oliver
,
J.
,
Gilmore
,
B.
, and
Duncan
,
J.
,
2007
, “
Immersive Product Configurator for Conceptual Design
,”
AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials Conference, pp.
2839
2848
.10.2514/6.2007-1931
40.
LaViola
,
J.
,
1999
, “
Whole-Hand and Speech Input in Virtual Environments
,” M.S. thesis, Computer Science, Brown University, Providence, RI.
41.
Rosenfield
,
R.
,
Zhu
,
X.
,
Toth
,
A.
,
Shriver
,
S.
,
Lenzo
,
K.
, and
Black
,
A.
,
2000
, “
Towards a Universal Speech Interface
,”
International Conference on Spoken Language Processing Beijing
, China.
42.
Dorojkin
,
D. V.
, and
Vance
,
J. M.
,
2002
, “
Implementing Speech Recognition in Virtual Reality
,”
ASME
Paper No. DETC2002/CIE-34390.10.1115/DETC2002/CIE-34390
43.
Kiyokawa
,
K.
,
Takemura
,
H.
, and
Yokoya
,
N.
,
2000
, “
SeamlessDesign for 3D Object Creation
,”
IEEE MultiMedia
,
7
(
1
), pp.
22
33
.10.1109/93.839308
44.
Kuester
,
F.
,
Duchaineau
,
M.
,
Hamann
,
B.
,
Joy
,
K.
, and
Ma
,
K.-L.
,
2000
, “
DesignersWorkbench: Towards Real-Time Immersive Modeling
,”
SPIE, Stereoscopic Displays and Virtual Reality Systems
, San Jose, CA, pp.
464
472
.
45.
Omata
,
M.
,
Go
,
K.
, and
Imamiya
,
A.
,
2000
, “
A Gesture-Based Interface for Seamless Communication Between Real and Virtual Worlds
,”
Sixth Ercim Workshop “User Interfaces For All,” European Consortium for Informatics and Mathematics
, Florence, Italy.
46.
Broll
,
W.
, and
Schardt
,
T.
,
2000
, “
The Virtual Round Table—A Collaborative Augmented Multi-User Environment
,”
ACM Proceedings of the Third International Conference on Collaborative Virtual Environments
, pp.
39
45
.
47.
Volkov
,
S.
, and
Vance
,
J. M.
,
2001
, “
Effectiveness and Haptic Sensation for the Evaluation of Virtual Prototypes
,”
ASME J. Comput. Inf. Sci. Eng.
,
1
(
2
), pp.
123
128
.10.1115/1.1384566
48.
Ansar
,
A.
,
Rodrigues
,
D.
,
Desai
,
J. P.
,
Daniilidis
,
K.
,
Kumar
,
V.
, and
Campos
,
M. F. M.
,
2001
, “
Visual and Haptic Collaborative Tele-Presence
,”
Comput. Graphics
,
25
(
5
), pp.
789
798
.10.1016/S0097-8493(01)00121-2
49.
Hedge
,
A.
,
2005
, “
Cornell University Ergonomics Web
,” www.ergo.human.cornell.edu.
50.
Campbell
,
D. A.
, and
Wells
,
M.
,
2003
,
A Critique of Virtual Reality in the Architectural Design Process
,
Human Interface Technology Laboratory, University of Washington
,
Seattle, WA
.
51.
Chipperfield
,
K. A.
, and
Vance
,
J.
,
2003
, “
VRHose—Virtual Hydraulic Hose Routing Design
,”
Material Handling Division
,
American Society of Mechanical Engineering
, pp.
57
63
.
52.
Jayaram
,
S.
,
Jayaram
,
U.
,
Gadh
,
R.
,
Srinivasan
,
H.
, and
Vance
,
J.
,
2001
, “
Assessment of VR Technology and Its Applications to Engineering Problems
,”
ASME J. Comput. Inf. Sci. Eng.
,
1
(
1
), pp.
72
83
.10.1115/1.1353846
53.
Gaisemier
,
J.
,
von Bohuszewicz
,
O.
,
Gehnen
,
G.
, and
Grafe
,
M.
,
1996
, “
Integration of Real IT-Applications in Virtual Manufacturing Systems
,”
ASME Design Engineering Technical Conferences and Computers in Engineering Conference
, Irvine, CA, pp.
1
10
.
54.
Demiralp
,
C.
,
Jackson
,
C.
,
Karelitz
,
D.
,
Zhang
,
S.
, and
Laidlaw
,
D. H.
,
2006
, “
CAVE and Fishtank Virtual-Reality Displays: A Qualitative and Quantitative Comparison
,”
IEEE Trans. Visualization Comput. Graphics
,
12
(
3
), pp.
323
330
.10.1109/TVCG.2006.42
55.
Lin
,
J. J.-W.
,
Duh
,
H. B. L.
,
Abi-Rached
,
H.
,
Parker
,
D. E.
, and
Abi-Rached
,
H.
, and
Furness
,
T. A.
,
2002
, “
Effects of Field of View on Presence, Enjoyment, Memory, and Simulator Sickness in a Virtual Environment
,”
IEEE
Virtual Reality Conference
,
IEEE Computer Society
,
Orlando, FL
, pp.
164
171
.10.1109/VR.2002.996519
56.
Duh
,
H. B.-L.
,
Lin
,
J. J. W.
,
Furness
,
T. A.
,
Kenyon
,
R. V.
, and
Parker
,
D. E.
,
2001
, “
Effects of Field of View on Balance in an Immersive Environment
,”
IEEE Virtual Reality Conference
,
IEEE
Computer Society, Yokohama, Japan, Mar. 17, pp.
235
240
.10.1109/VR.2001.913791
57.
Tan
,
D. S.
,
Gergle
,
D.
,
Scupelli
,
P.
, and
Pausch
,
R.
,
2003
, “
With Similar Visual Angles, Larger Displays Improve Spatial Performance
,”
SIGCHI
Conference on Human Factors in Computing Systems
, ACM, Ft. Lauderdale, FL, pp.
217
224
.10.1145/642647.642650
58.
Tyndiuk
,
F.
,
Lespinet-Najib
,
V.
,
Thomas
,
G.
, and
Schlick
,
C.
,
2004
, “
Impact of Large Displays on Virtual Reality Task Performance
,”
Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa Conference
(AFRIGRAPH '04), ACM, Stellenbosch, South Africa, pp.
61
65
.10.1145/1029949.1029960
59.
Hinckley
,
K.
,
Tullio
,
J.
,
Pausch
,
R.
,
Profitt
,
D.
, and
Kassell
,
N.
,
1997
, “
Usability Analysis of 3D Rotation Techniques
,”
ACM
Symposium on User Interface Software and Technology
, pp.
1
10
.10.1145/263407.263408
60.
Schulze
,
J. P.
,
Forsberg
,
A. S.
,
Kleppe
,
A.
,
Zeleznik
,
R. C.
, and
Laidlaw
,
D. H.
,
2005
, “
Characterizing the Effect of Level of Immersion on a 3D Marking Task
,”
HCI International Conference
, Las Vegas, NV.
61.
Pausch
,
R.
,
Proffitt
,
D.
, and
Williams
,
G.
,
1997
, “
Quantifying Immersion in Virtual Reality
,”
ACM SIGGRAPH Conference on Computer Graphics
, pp.
13
18
.10.1145/258734.258744
62.
Yeh
,
Y.
, and
Silverstein
,
L.
,
1992
, “
Spatial Judgments With Monoscopic and Stereoscopic Presentation of Perspective Displays
,”
Hum. Factors
,
34
(
5
), pp.
583
600
.
63.
Arthur
,
K.
,
Booth
,
K.
, and
Ware
,
C.
,
1993
, “
Evaluating 3D Task Performance for Fish Tank Virtual Worlds
,”
ACM Trans. Inf. Syst.
,
11
(
3
), pp.
239
265
.10.1145/159161.155359
64.
Ware
,
C.
, and
Balakrishnan
,
R.
,
1994
, “
Reaching for Objects in VR Displays: Lag and Frame Rate
,”
ACM Trans. Comput. Hum. Interaction
,
1
(
4
), pp.
331
356
.10.1145/198425.198426
65.
Barfield
,
W.
,
Hendrix
,
C.
, and
Bystrom
,
K.
,
1997
, “
Visualizing the Structure of Virtual Objects Using Head Tracked Stereoscopic Displays
,”
Virtual Reality Annual International Symposium
, Albuquerque, NM, Mar. 1–5, pp.
114
120
.10.1109/VRAIS.1997.583052
66.
Chance
,
S.
,
Gaunet
,
F.
,
Beall
,
A.
, and
Loomis
,
J.
,
1998
, “
Locomotion Mode Affects the Updating of Objects Encountered During Travel
,”
Presence
,
7
(
2
), pp.
168
178
.10.1162/105474698565659
67.
Watson
,
B.
,
Spaulding
,
V.
,
Walker
,
N.
, and
Ribarsky
,
R.
,
1997
, “
Evaluation of the Effects of Frame Time Variation on VR Task Performance
,”
Virtual Reality Annual International Symposium
, Albuquerque, NM, Mar. 1–5, pp.
38
44
.10.1109/VRAIS.1997.583042
68.
Narayan
,
M.
,
Waugh
,
L.
,
Zhang
,
X.
,
Bafna
,
P.
, and
Bowman
,
D.
,
2006
, “
Quantifying the Benefits of Immersion for Collaboration in Virtual Environments
,”
ACM
Symposium on Virtual Reality Software and Technology
, Monterey, CA, pp.
78
81
.10.1145/1101616.1101632
69.
Polys
,
N.
,
Kim
,
S.
, and
Bowman
,
D.
,
2005
, “
Effects of Information Layout, Screen Size, and Field of View on User Performance in Information-Rich Virtual Environments
,”
ACM
Symposium on Virtual Reality Software and Technology
, Monterey, CA, pp.
46
55
.10.1145/1101616.1101626
70.
Polys
,
N.
,
Kim
,
S.
, and
Bowman
,
D.
,
2006
, “
Effects of Information Layout, Screen Size, and Field of View on User Performance in Information Rich Virtual Environments
,”
Comput. Animation Virtual Worlds
,
18
(
1
), pp.
19
38
.10.1002/cav.159
71.
Arns
,
L.
,
Cook
,
D.
, and
Cruz-Neira
,
C.
,
1999
, “
The Benefits of Statistical Visualization in an Immersive Environment
,”
IEEE
Virtual Reality Annual International Symposium
, Houston, TX, Mar. 13–17, pp.
88
95
.10.1109/VR.1999.756938
72.
Gruchalla
,
K.
,
2004
, “
Immersive Well-Path Editing: Investigating the Added Value of Immersion
,”
IEEE Virtual Reality
, Mar. 27–31, pp.
157
164
.10.1109/VR.2004.1310069
73.
Swan
,
J.
,
Gabbard
,
J.
,
Hix
,
D.
,
Schulman
,
R.
, and
Kim
,
K.
,
2005
, “
A Comparative Study of User Performance in a Map-Based Virtual Environment
,”
IEEE
Virtual Reality Conference
, Los Angeles, CA, pp.
259
266
.10.1109/VR.2003.1191149
74.
Schuchardt
,
P.
, and
Bowman
,
D.
,
2007
, “
The Benefits of Immersion for Spatial Understanding of Complex Underground Cave Systems
,”
ACM
Virtual Reality Software and Technology
, Newport Beach, CA, Mar. 22–26, pp.
121
124
.10.1145/1315184.1315205
75.
Prabhat
,
Forsberg
,
A.
,
Katzourin
,
M.
,
Wharton
,
K.
, and
Slater
,
M.
,
2007
, “
A Comparative Study of Desktop, Fishtank and Cave Systems for the Exploration of Volume Rendered Confocal Data Sets
,”
IEEE Trans. Visualization Comput. Graphics
,
13
(
3
), pp.
551
563
.10.1109/TVCG.2007.70433
76.
Chung
,
J.
,
1992
, “
A Comparison of Head-Tracked and Non-Head-Tracked Steering Modes in the Targeting of Radiotherapy Treatment Beams
,”
ACM
Symposium on Interactive 3D Graphics
, pp.
193
196
.10.1145/147156.147204
77.
Bliss
,
J.
,
Tidwell
,
P.
, and
Guest
,
M.
,
1997
, “
The Effectiveness of Virtual Reality for Administering Spatial Navigation Training to Firefighters
,”
Presence
,
6
(
1
), pp.
73
86
.
78.
Nielsen
,
J.
, and
Phillips
,
V.
,
1993
, “
Estimating the Relative Usability of Two Interfaces: Heuristic, Formal, and Empirical Methods Compared
,”
SIGCHI
Conference on Human Factors in Computing Systems
, Amsterdam, The Netherlands, pp.
214
221
.10.1145/169059.169173
79.
GraphPad Software,
2003
, “
InStat
,” San Diego, CA.
80.
SAS Institute
,
1999
, “
SAS for Windows
,” 00M0 ed., SAS Institute, Cary, NC.
81.
Satter
,
K. M.
,
2005
, “
Competitive Usability Studies of Virtual Environments for Shipbuilding
,” Ph.D. dissertation, Engineering Management, University of New Orleans, New Orleans, LA.
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