User Interface Design and Ergonomics - National Open University of ...

More documents

Recommendations

Info

After thorough analysis using various tools and models, designers create a high level summary spanning across all levels of user requirements. This includes a vision statement regarding the current and future goals of a project. c. Alternative design and evaluation Once clear view of the problem space exists, designers will develop alternative solutions with crude prototypes to help convey concepts and ideas. Proposed solutions are evaluated and perhaps even merged. The end result should be a design that solves as many of the user requirements as possible. Some tools that may be used for this process are wireframing and flow diagrams. The features and functionality of a product or service are often outlined in a document known as a wireframe ("schematics" is an alternate term). Wireframes are a page-by-page or screen-by-screen detail of the system, which include notes ("annotations") as to how the system will operate. Flow Diagrams outline the logic and steps of the system or an individual feature. d. Prototyping and usability testing Interaction designers use a variety of prototyping techniques to test aspects of design ideas. These can be roughly divided into three classes: those that test the role of an artifact, those that test its look and feel and those that test its implementation. Sometimes, these are called experience prototypes to emphasize their interactive nature. Prototypes can be physical or digital, high- or low-fidelity. e. Implementation Interaction designers need to be involved during the development of the product or service to ensure that what was designed is implemented correctly. Often, changes need to be made during the building process, and interaction designers should be involved with any of the on-the-fly modifications to the design. f. System testing Once the system is built, often another round of testing, for both usability and errors ("bug catching") is performed. Ideally, the designer will be involved here as well, to make any modifications to the system that are required. 3.6 ASPECTS OF INTERACTION DESIGN Social interaction design Social interaction design (SxD) is emerging because many of our computing devices have become networked and have begun to integrate communication capabilities. Phones, digital assistants and the myriad connected devices from computers to games facilitate talk and social interaction. Social interaction design accounts for interactions among 88
users as well as between users and their devices. The dynamics of interpersonal communication, speech and writing, the pragmatics of talk and interaction--these now become critical factors in the use of social technologies. And they are factors described less by an approach steeped in the rational choice approach taken by cognitive science than that by sociology, psychology, and anthropology. Affective interaction design Throughout the process of interaction design, designers must be aware of key aspects in their designs that influence emotional responses in target users. The need for products to convey positive emotions and avoid negative ones is critical to product success. [1] These aspects include positive, negative, motivational, learning, creative, social and persuasive influences to name a few. One method that can help convey such aspects is the use of expressive interfaces. In software, for example, the use of dynamic icons, animations and sound can help communicate a state of operation, creating a sense of interactivity and feedback. Interface aspects such as fonts, color pallet, and graphical layouts can also influence an interface's perceived effectiveness. Studies have shown that affective aspects can affect a user's perception of usability. [1] Emotional and pleasure theories exist to explain peoples responses to the use of interactive products. These includes Don Norman's emotional design model, Patrick Jordan's pleasure model, and McCarthy and Wright's Technology as Experience framework. 3.7 INTERACTION DESIGN DOMAINS Interaction designers work in many areas, including software interfaces, (business) information systems, internet, physical products, environments, services, and systems which may combine many of these. Each area requires its own skills and approaches, but there are aspects of interaction design common to all. Interaction designers often work in interdisciplinary teams as their work requires expertise in many different domains, including graphic design, programming, psychology, user testing, product design, etc (see below for more related disciplines). Thus, they need to understand enough of these fields to work effectively with specialists. 4.0 CONCLUSION In this unit, you have been introduced to the principles of interaction design. User- Centered Interaction design was also discussed. The history, relationship, methodologies and various aspects of User-Centered Interaction Design was also explained. An interaction design domain was also discussed. 5.0 SUMMARY The summary of what have been discussed in this course are:- 89
Page 1:
] NATIONAL OPEN UNIVERSITY OF NIGER
Page 4 and 5:
National Open University of Nigeria
Page 6 and 7:
Summary ...........................
Page 8 and 9:
UNIT 3 - GRAPHICAL USER INTERFACE (
Page 10 and 11:
Assignments File Tutor-Marked Assig
Page 12 and 13:
2 DESIGN and DESIGNING GOOD USER IN
Page 14 and 15:
need both the study unit you are wo
Page 16 and 17:
CIT 711: USER INTERFACE DESIGN AND
Page 18 and 19:
UNIT 1 FUNDAMENTALS OF USER INTERFA
Page 20 and 21:
3.3 TYPES OF USER INTERFACES Curren
Page 22 and 23:
3.5 USER INTERFACE MODALITIES AND M
Page 24 and 25:
Table of Contents 1.0 Introduction
Page 26 and 27:
3.1.1 DESIGNING A GOOD USER INTERFA
Page 28 and 29:
widgets properly is to read and und
Page 30 and 31:
Figure 1:- Showing that alignment o
Page 32 and 33:
6.0 TUTOR MARKED ASSIGNMENT a. How
Page 34 and 35:
A graphical user interface is a typ
Page 36 and 37:
Operating System. It is easy for a
Page 38 and 39: A list of items from which to selec
Page 40 and 41: collaborative work. For example, sc
Page 42 and 43: MODULE 1 UNIT 4 HUMAN COMPUTER INTE
Page 44 and 45: 3.3 DIFFERNCES WITH RELATED FIELDS
Page 46 and 47: window blinds to automobile braking
Page 48 and 49: Wickens, Christopher D., John D. Le
Page 50 and 51: The International Ergonomics Associ
Page 52 and 53: approach, the Gilbreths reduced the
Page 54 and 55: 3.6 BENEFITS OF ERGONOMICS The thre
Page 56 and 57: Another key to reducing lumbar disc
Page 58 and 59: MODULE 2 - USER INTERFACE DESIGN TE
Page 60 and 61: methods include inspection methods,
Page 62 and 63: Determine time of each operation (b
Page 64 and 65: unable to understand new informatio
Page 66 and 67: M cones, or, misleadingly, green co
Page 68 and 69: Motor skill which is a learned seri
Page 70 and 71: MODULE 2 UNIT 2 UNDERSTANDING USERS
Page 72 and 73: The users of a system must be ident
Page 74 and 75: This example brings up an important
Page 76 and 77: whether you want to have a palette
Page 78 and 79: Task analysis which includes identi
Page 80 and 81: MODULE 2 UNIT 3 USER CENTERED DESIG
Page 82 and 83: or small body text is also hard to
Page 84 and 85: Introduction to User-centered desig
Page 86 and 87: organizations themselves. Interacti
Page 90 and 91: Interaction design which is the dis
Page 92 and 93: In human-computer interaction and c
Page 94 and 95: The preferred method for ensuring u
Page 96 and 97: 3.4 ISO STANDARDS FOR USABILITY ISO
Page 98 and 99: In this unit, you have been introdu
Page 100 and 101: affect the way the command is execu
Page 102 and 103: • Guides the user via the predefi
Page 104 and 105: The term direct manipulation was in
Page 106 and 107: There are two important reasons for
Page 108 and 109: 108
Page 110 and 111: UNIT 1 PROTOTYPING Table of Content
Page 112 and 113: Figure 12: The iterative steps of p
Page 114 and 115: select print Figure 13: An interfac
Page 116 and 117: Ambler, S.W. & Constantine, L.L. (2
Page 118 and 119: 3.2 LOW-FIDELITY PROTOTYPES Low-fid
Page 120 and 121: Figure 14:- Example of Sketching II
Page 122 and 123: Much more important for features th
Page 124 and 125: DENIM, an extension of SILK, is a t
Page 126 and 127: • Encourage menu & forms style, r
Page 128 and 129: Another problem is that native widg
Page 130 and 131: interfaces, so that a realistic sim
Page 132 and 133: UNIT 3 INPUT AND OUTPUT MODELS Tabl
Page 134 and 135: Recall that perceptual fusion means
Page 136 and 137: 3.2 OUTPUT MODEL There are basicall
Page 138 and 139:
directly-mapped pixel image will no
Page 140 and 141:
Most stroke models also include som
Page 142 and 143:
UNIT 4 MODEL VIEW-CONTROLLER (MVC)
Page 144 and 145:
3.3.2 AS A DESIGN PATTERN MVC enco
Page 146 and 147:
The Views are XForms controls for s
Page 148 and 149:
UNIT 5 LAYOUTS AND CONSTRAINTS Tabl
Page 150 and 151:
3.5 CONSTRAINTS Constraints are rel
Page 152 and 153:
152
Page 154 and 155:
MODULE 4 UNIT 1 TECHNIQUES FOR EVAL
Page 156 and 157:
a. Card Sorting Card sorting is a w
Page 158 and 159:
Rapid prototyping is a method used
Page 160 and 161:
3.2.1 THE USE OF PROTOTYPES It is o
Page 162 and 163:
Dumas, J.S. and Redish, J.C. (1999)
Page 164 and 165:
the users' respect for you as a pro
Page 166 and 167:
the users will be and what kind of
Page 168 and 169:
speed whenever the average load was
Page 170 and 171:
Table 4:- Table: Average times for
Page 172 and 173:
phases: list the actions, and then
Page 174 and 175:
Nielsen and Molich used their own e
Page 176 and 177:
7.0 REFERENCES AND FURTHER READING
Page 178 and 179:
users. If you do not, you can be ba
Page 180 and 181:
If you are led to develop more and
Page 182 and 183:
It's very easy to shape the comment
Page 184 and 185:
a. Analyzing the Bottom-Line Number
Page 186 and 187:
you use. But then you need some way
Page 188 and 189:
ecruit test users with more similar
Page 190 and 191:
MODULE 4 UNIT 4 OTHER EVALUATION IS
Page 192 and 193:
3.2 CURRENT ISSUES CONCERNING EVALU
Page 194 and 195:
2.0 OBJECTIVES By the end this unit
Page 196 and 197:
It provides a real focal point for
Page 198 and 199:
3.3.4 CONDUCTING THE TEST Having co
Page 200:
The stages involved in usability te
show all

User Interface Design and Ergonomics - National Open University of ...

Create successful ePaper yourself

Delete template?

Save as template?