Evaluering af den mobile brugergrænseflade i Intelligent Materialestyring

126 Pages·2013·5.54 MB·Danish

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M
Maj 2013
Vejleder: Marianne Lykke

TITELBLAD
Projekttitel: Evaluering af den mobile brugergrænseflade i Intelligent Materialestyring
Aalborg universitet
Maj 2013
Mette Marie Kronborg
Informationsvidenskab, 10. semester
Vejleder: Marianne Lykke
Antal anslag: 190.320
Sider: 79,5

ABSTRACT
This report presents and documents an evaluation of the mobile useri nterface for Intelligent Material
Management System (IMS).
IMS is a development project with the aim to support a more effective way to significantly improve the
distribution of items at libraries. The project is lead by Copenhagen Libraries and Aarhus Public Libraries.
Lyngsoe Systems A/S is developing the system.
IMS consists of two parts (1) a web client and (2) a mobile app. The web client is installed at the libraries’
stationary computers and is designed for super users to perform configuration in IMS. The web client is not
covered in this thesis.
The mobile platform, app, is accessed from a smartphone which all of the employees will be using in their
daily routines. Every time a material is handled, it has to be scanned with the mobile device. This makes it
possible to track the material whether it is on a shelf, in a transport box, sorting machine, or even on a trolley
on the move.
Consequently the project is very dependent on the employees’ ability and motivation to take the app into
use. This sets high demands when it comes to the usability of the app. But is a focus on usability sufficient
when it comes to motivating the employees to change all of their daily routines? Based on these thoughts
the evaluating seeks not only to improve the usability in the app but also to investigate the user experience
hereof.
The interpretive foundation of the evaluating is based in a Hermeneutic approach to science. The theories
used for structuring the evaluation and understanding the conducted data is theories about usability goals
(Preece et al. 2007) and theories about mobile usability (Nielsen & Budiu 2013; Weiss 2002). Theories about
user experience (Jantzen et al. 2011) will also be presented during the evaluation.
The evaluation follows two iterations. The first iteration consists of a user test of an already designed but not
released version of the IMS app. The method for testing is walk-along conducted at Risskov library with six
employees. The goal of the walk-along method is to test the system in the context, for which it is designed.
And during the test to find usability problems and get an understanding of the user experience. Data from
walk-along is supplemented with data from a usability test conducted in Copenhagen by user experience
designer, Søren Øbro. This sets the basis for the redesign of the app. The redesign is illustrated in a low
fidelity prototype and leads to the second iteration.
The second iteration consists of a usability workshop with the goal of getting the users’ feedback on the
redesign and through this approach validating the chosen solutions.
The last part of the report presents a validation of the evaluation, based on a set of principles for evaluating
interpretive field studies in information systems (Klein & Myers 1999). This leads on to reflections about walk-
along as a method for mobile app testing.

Tak til Carsten Hammershøi, Tina Skjærbæk og Lyngsø Systems A/S for godt samarbejde
Tak til de ansatte på Risskov bibliotek for jeres tid og engagement
Mette Marie Kronborg
Maj 2013
INDHOLDSFORTEGNELSE

INDLEDNING
Indledning ..................................................................... 3
Problemformulering ......................................................... 4
Baggrundsviden om IMS projektet .............................................. 4
Læsevejledning ............................................................ 5

DEL 1: UNDERSØGELSENS BAGGRUNDSVIDEN OG GRUNDLAG
Den mobile enhed i IMS .......................................................... 11
IMS begreber ............................................................ 11
Brugergruppen ........................................................... 12
Mål for designet .......................................................... 13

Videnskabsteoretisk grundlag ...................................................... 17
Hermeneutik ............................................................. 17
Principper for fortolkningsforskning ............................................ 17

Teoretisk grundlag .............................................................. 21
Brugervenlighed .......................................................... 21
Mobil brugervenlighed ...................................................... 22
Brugeroplevelse .......................................................... 22
Forholdet mellem brugervenlighed og brugeroplevelse .............................. 25

Undersøgelsesdesign ............................................................ 29
Evaluering ............................................................... 29
Undersøgelsens delelementer ................................................ 29
Agil tilgang til udvikling ..................................................... 30
Testmetoder ............................................................. 31
Walk-along .............................................................. 31
Usability workshop ........................................................ 34
Analysemetode ........................................................... 35
DEL 2: FØRSTE ITERATION
Test af den mobile enhed i IMS ..................................................... 43
Usability test ............................................................. 43
Walk-along .............................................................. 43
Den mobile enhed version H04 ............................................... 45

Analyse af data ................................................................ 49
"Oprette en udstilling" ...................................................... 49
"Fremfinding" ............................................................ 52
"Håndtering af materialer" ................................................... 56
"Sæt på plads" ........................................................... 59
Afsluttende kommentarer ................................................... 60
Opsummering ............................................................ 62
Delkonklusion ................................................................. 65
DEL 3: ANDEN ITERATION
Præsentation af redesign ......................................................... 71
Generel opbygning ........................................................ 71
"Oprette en udstilling" ...................................................... 72
"Fremfinding" ............................................................ 73
"Håndtering af materialer" ................................................... 76
"Sæt på plads" ........................................................... 77
Opsummering ............................................................ 79

Feedback på redesign ........................................................... 83
Brugernes feedback ....................................................... 83
Opsummering ............................................................ 87
Rekvirentens feedback ..................................................... 88
Opsummering ............................................................ 89
DEL 4: METODEREFLEKSION
Validering af undersøgelsen ....................................................... 95
Opsummering ............................................................ 96

Walk-along som testmetode ...................................................... 101
Forsker-testperson ....................................................... 101
Brugervenlighed og brugeroplevelse .......................................... 102
Kontekstens betydning .................................................... 103
Opsummering ........................................................... 104
KONKLUSION
Konklusion ................................................................... 109
Litteraturliste ................................................................. 112
Bilagsoversigt ................................................................ 115