Cloud4all User Forum and Focus group

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10 Δεκ 2013 (πριν από 3 χρόνια και 10 μήνες)

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Cloud platforms Lead to Open and Universal access

for people

with
Disabilities and for All

www.cloud4all.eu

Cloud4all
User
Forum and Focus group

30/08/2012 in Berlin

Vivien Melcher, Daniel Ziegler
FhG IAO

Main objective

Use case validation:


Discussion and validation of the basic user profiles


Requirement analysis:


Gathering requirements regarding profile
initialisation

and the Profile
Management
Tool


Validation of first
FhG

concepts


Agenda and objectives

10
.
00



10
.
30

Welcome

10
.
30



11
.
00

Presentation

of

Cloud
4
All

Within

this

session

the

Cloud
4
All



project

and

its

main

objectives

are

presented
.

First,

the

project

video

is

shown,

and

the

project

architecture

is

displayed

on

a

print

medium
.

This

chart

is

visible

during

the

whole

workshop
.

A

presentation

shows

the

main

use

cases
.

Jutta

Croll
,

SDC

11
:
00



12
:
00

Self
-
adapting

systems

This

session

collects

first

experiences,

attitudes

and

opinions

on

self
-
adapting

systems
.

The

users

talk

about

their

needs

regarding

user

interface

adaptation

and

interaction

modalities
.

Vivien

Melcher

FhG

IAO,

Ulrike

Peter

SDC

12
.
00



12
.
45

Coffee

break


12
.
45



13
.
45

Profile

Management

Tool

Within

this

session

the

profile

management

tool

is

introduced

to

the

participants
.

Requirements

regarding

the

tool

and

its

functionalities

are

gathered

and

discussed
.


Vivien

Melcher

FhG

IAO

13
.
45



14
.
45

Presentation

and

discussion

of

the

prototypes

An

ontology
-
based

Lo
-
Fi

prototype,

and

a

persona
-
based

Lo
-
Fi

prototype

are

presented

to

the

participants

and

are

discussed

in

smaller

groups
.

Vivien

Melcher,

Marvin

Pawlowski

FhG

IAO





14
.
45



15
.
00

Conclusion

The

main

results

of

the

workshop

are

summarized
.

Jutta

Croll

SDC

Agenda and objectives

1.
Cloud4all approach


What
kind of user groups can benefit from Cloud4all?


What
problems
do the users have when accessing ICT?



results are included within ID502.1


2.
Self
-
adapting systems


Gathering requirements for UI adaptation and auto
-
configuration


Which interaction modalities need to be considered?



Agenda and objectives

3.
Presentation of use cases

1/2


Users creating their Preferences for the first
time:
who sets up the
profile
-
the caregiver or the user? How should the profile be set up?


Users
looking at their Preferences and changing
them
: Should the
profile be available on all end devices? What about public devices?
Are changes to the profile made directly at the end device or could
the users imagine to use a second device for editing the profile?


Advanced
management of
Preferences
: What kind of advanced
functionalities are required? How important are privacy settings?

Agenda and objectives

3.
Presentation of use cases


2/2


Sharing your Set of Preferences with other peers
: What kind of use
cases could be imagined for sharing profile settings? In which
extend would user share settings?


User login/ Recognition of users:


Getting your Preferences from the server


or USB


or Phone:
Where should the settings preferably be stored


server, mobile
phone, USB storage medium?



Agenda and objectives

4.
Profile Management Tool


How
are the
profiles
set up
-

select from pre
-
defined profiles,
stepwise
selection of options, parameters,
...?


Would the users do profile
initialisation

at public devices (e.g. Cash
point machine)?


How
much effort
would the
users accept
for profile
initialisation
?


How
extensive and detailed
would users set up their initial profile?


How many complex profiles
would users
create?
One main profile.
one
profile per device group
(e.g. “smartphone”) or
one profile for
each
device (e.g. “Tom’s Android”; “Tom’s iPhone”)?


Agenda and objectives

5.
Presentation and discussion of the prototypes

Persona based prototype vs. ontology based prototype


Focus was on the underlying concept rather than the GUI of the
prototypes


Which
concept
of profile
initialization

is preferred?


Which
forms of interaction should be
offered?


Prototype for profile management


How should the preference settings be organized within the
management tool?

Setup


Fraunhofer

Forum
Berlin


8 participants with different disabilities


Adapt range of functions of AT (e.g. not every function of a
screen
-
reader is used)


Different levels of speech for captions (e.g. simple speech)


Personalized privacy settings


Automatic adaptation to context variables (e.g. light conditions)


Speech recognition with personal speech profile stored in the
cloud (especially for motor impaired)



Results

Auto
-
configuration
/
adaptation

Results

Who sets up the user profile?


The user him
-
/ herself (self
-
determined)


Gargiver

as person who sets up the profile are only imaginable for
persons with low level of computer
litracy



How should the profile be set up?


Comparable to an app store: different options for preference settings
are offered and can be accepted or rejected


Wizard
-
dialogue or direct manipulation of settings within the main tool


Two modes (easy, advanced mode)


WYSIWYG


preview of preference adjustments


Simple speech and symbols


Tool should meet accessibility
criterias


Profile Management Tool

Where would the users do profile initialisation?


On a personal device that is already ajusted (manually) to the users
needs and preferrences (PC, smartphone).



Is an processing of user profile parameters also imaginable on
public devices?


Considerable for adjustment of device specific settings


But rather via smartphone or any other personal mobile device than
directly at the public device (near
-
field communication)

Results

Profile Management Tool

How should the initial profile creation should be processed?


Selection between wizard and tool


Wizard: Ontology based approach was more accepted than the
persona based approach


If the wizard is declined, then the main page of the tool is shown


The user can selct between taking over the device settings as
default or to leave the profile blank until the user changes the
setting of a parameter


Results

Profile Management Tool

How much effort should be associated with the creation of the user
profile?


Users are willing to invest a lot of effort in the profile compilation, if
the outcome provides a high level of accessibility


Users can imagine to generate a first „rough“ profile, that is
extendable, as well as to compile a detailed profile in one session


Results

Profile Management Tool

One default profile , one profile per device class or one profile for
every device?


Default profile + conditional preferences (if
-
then conditions)


General Settings + automatic context related adjustments
(environment variables, e.g. sunlight)

Results

Profile Management Tool

Ontology


Is suitable for people with learning disabilities, but not for blind
people, because a lot of unsuitable information has to be read
aloud by the screen
-
reader


preferred way to create a profile


Simple and clear structure is important


Adjustment of settings by sliders or direct input rather than
selection of alternatives


Results

Ontology

versus Persona

Persona


Detailed, indirect description of the disability


Personas do not differentiate enough between users and their
needs


Additional effort is required to adapt the persona to the users
needs


Perhaps suitable for other user groups (e.g. elderly, people with low
computer literacy)

Results

Ontology

versus Persona

User suggestions


First the ontology based approach is followed (query of some key
parameters). Based on the user‘s selection the matchmaker uses
the statistical approach to select the next parameters to be shown
and proposes a suitable persona and the corresponding preference
settings


If the persona is rejected, additional settings are queried


If a persona is accepted, then the previous made settings are applied to the
persona


Results

Ontology

versus Persona

Results

Where are the preference settings edited?


On a personal computer or another personal device


To edit preference settings for remote devices at home is not
feasible because it is not estimable which effects the changes have



Focus Group

Preference sharing among peers


Useful in selecting suitable software (user forum)


R
ecommendations should be given, but not too intrusive