Towards ergonomic guidelines integration within graphical interface controls for the evaluation of...
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Towards ergonomic guidelines integration within graphical interface controls for the evaluation of the interactive system Application to a transport network Information Support System Hammamet May, 31th 2011 Selem Charfi, Abdelwaheb Trabelsi, Houcine Ezzedine, Christophe Kolski
description
In this paper, a new approach for interactive system evaluation is presented. It is based on the ergonomic guidelines integration within Graphical User Interface (GUI) controls. These controls provide assistance to the evaluator for the interfaces design according to a set of ergonomic guidelines. The controls use is proposed for both the evaluators and the developers. The proposed approach is based on the fact that when creating a graphical component (when adding it to the interface), it inspects a set of ergonomic criteria and verifies the GUI compliance with these criteria. The advantage of the suggested proposal consists essentially on its easiness to provide ergonomic guidelines validation when designing a GUI. To validate our approach, we propose in this paper, an application on a transport network supervision system and more particularly to an Information Assistance System for passenger.
Transcript of Towards ergonomic guidelines integration within graphical interface controls for the evaluation of...
Towards ergonomic guidelines integration
within graphical interface controls for the
evaluation of the interactive system Application to a transport network Information Support System
Hammamet May, 31th 2011
Selem Charfi, Abdelwaheb Trabelsi, Houcine Ezzedine,
Christophe Kolski
Plan
1. Introduction
2. The interactive systems evaluation based on
ergonomic guidelines validation
3. Ergonomic guidelines integration within GUI
controls
4. Application to transport network Information
Support System (ISS)
5. Conclusion & Research Perspectives
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1- Introduction
The evaluation process is important => good
ergonomic quality interactive system
Failures non-tolerant interactive system (monitoring
system)
Evaluation methods are various
Interactive system life cycle phase
Cost (in material resources and evaluation time)
Quality factors : the transportation system evaluation
The utility
The usability
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1- Introduction
HCI evaluation method operates on a given principle.
User actions analysis
electronic informer: MESIA, EMA, Sherlock, Usine ...
Conversing with users (designers) => identify usability
problems (Dedicated questionnaires, Usability focused interviews ,
Cognitive Walkthrough method, …)
Early evaluation based on oriented use traces
Validating ergonomic guidelines in the HCI:
ERGOVAL, Sierra, EvalAccess, Destine
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2- The interactive systems evaluation based
on ergonomic guidelines validation
Compliance
User interfaces
Ergonomic guidelines and recommendations issued from
the software usability
Static presentation
Evaluator and a designer during the evaluation
process
Graphical controls attributes values
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2- The interactive systems evaluation based
on ergonomic guidelines validation
Provided services
1. Criticism or recommendations
2. Assistance in the interactive systems evaluation
3. Ergonomic guidelines violations
Ivory and Hearst => automation level
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Capture
Analysis
Criticism
3- Ergonomic guidelines integration within
GUI controls
Validate the guidelines through
customized controls.
The component evaluates itself
Inherit from the controls supplied by the
design environment
Added to the toolbar
Same functions and methods as those
supplied with most development
environments. 31/10/2012 7
Based Ergonomic Guidelines validation controls
Ergonomic Guideline Validation
Ergonomic criticism and
recommendation generation
Global and specific report on
ergonomic guidelines validation
Controls Initialization
Ergonomic
Guidelines
Database
Tra
nsp
ort
Med
ical
Educa
tion
Designer
Evaluator
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3- Ergonomic guidelines integration within
GUI controls
Advantage of the proposed approach
Easy to use in the evaluation process
The interface designer does not have to manually check the
compliance of controls to the ergonomic guidelines
Can be applied in the interface design at early stages
Improvement suggestions are proposed to the designer
automatically
Assistance is provided in parallel with the interface design
phase 31/10/2012 9
3- Ergonomic guidelines integration within
GUI controls Examples of aspects covered
by the evaluation oriented
controls.
Component W
riti
ng
_S
ize
Wri
tin
g_
Co
lor
Wri
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g_
Fo
nt
Ima
ge
s_
Dim
en
tio
n
Co
ntr
ols
_D
ime
ns
ion
Info
rma
tio
n_D
en
sit
y
Gla
ba
l_D
en
sit
y
Ba
ck
gro
un
d
De
fau
lt_
Va
lue
Ite
ms
_N
um
be
r
My_Button X X X X X
My_RadioButton X X X X X
My_CheckBox X X X X X X
My_TextBox X X X X X X X
My_Label X X X X X X
My_ComboBox X X X X
My_TabControl X
My_ListBoxSelection X X X X X X X X
My_PictureBox X X X
My_Form X X X X X
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3- Ergonomic guidelines integration within
GUI controls public class My_Button : System.Windows.Forms.Button {
ArrayListError_List = new ArrayList (); struct Evaluation {string error; string recommendation;}
public int density = 0; public Boutton(): base () { writing_size (Errors_List, this.Controls[0].Size.ToString()); writing_font (Errors_List, this.Controls[0].Font.ToString()); gloabl_density(Errors_list, density); ... if (Errors_List.Count>0)
{ string errors=""; string recommendation = ""; for (int i=0; i<Errors_List.Count;i++) { errors +=Errors_List[i].error + '\n'; recommendation+=Errors_List[i].recommendation+'\n'; … }
Evaluation_Form EF= new Evaluation_For(errors, recommendations); EF.show();
} } 31/10/2012 11
4- Application to transport network
Information Support System (ISS)
Support system for information to regulators in the
control room of the public transportation network
=> Perform tasks optimally either in normal or
degraded network mode.
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4- Application to transport network
Information Support System (ISS)
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1 2 3 4
4- Application to transport network
Information Support System (ISS)
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4- Application to transport network
Information Support System (ISS)
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5- Conclusion and research perspectives
Interactive system ergonomic quality evaluation
Proposal for the validation of ergonomic guidelines in
graphical interfaces
Easy to apply.
HCI Automated evaluation
Built on graphical controls
Inspect their own validity in relation to ergonomic guidelines.
Technically validated by an experimental evaluation of a
passenger Information Support System.
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5- Conclusion and research perspectives
As research perspective,
Ergonomic guidelines external of the controls
Integrate new guidelines
Ergonomic guidelines modeling tool
Ergonomic guidelines definition language.
Controls to evaluate web applications
Integrate other controls
Couple this approach with other approaches (dynamic
evaluation)
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We welcome your question, suggestions and comments
Towards ergonomic guidelines integration
within graphical interface controls for the
evaluation of the interactive system Application to a transport network Information Support System
Hammamet May, 31th 2011
Selem Charfi, Abdelwaheb Trabelsi, Houcine Ezzedine,
Christophe Kolski
