Analysis & Evaluation

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Pattern Library Publication Management Digitization Lifecycle Research- and Metadata Handling Usability Report Corporate & Interface Design (under Rework) Page Index
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Evaluation

Interfaces where a usability life cycle is applied are subject to evaluation. Evaluation, done by the User Interface Engineering team can be carried out with different Methods:

1. Usability Interviews and tests with 'Thinking Aloud'
2. GUI Workshops 'e.g. Card Sorting'
3. Software based evaluation

Usability Interviews (Thinking Aloud/Think Aloud Protocol)

From our point of view the method of choice because it balances result and effort.

Participants	1
Supervisor	1 plus 1 visitor (usually developers)
Equipment	PC Internet connection Tasklist (provided by UIE) Test Form (provided by UIE) Recording Device
Duration	1h
Results	Document with notes on user actions for each action/step. The results are analysed after 6 - 8 interviews towards a statistic, providing GUI flaws within use cases.
Steps	Short Introduction Participant solves task independently Open questions/diskussion

Usability interviews are conducted to discover, document and classify usability issues for

• a specific release (e.g. PubMan 2.0.0.1)
• a functional prototype
• a prototype draft

Up to 8 interviews are usually sufficient to discover the main flaws of a GUI. The interviewer just provides tasks for his participant. The participant does all tasks on his own and should be encouraged to comment on his actions. It is not recommended for the interviewer to interfere in any form. If the participant gets stuck and there are important steps to follow, he gets a hint how to continue.

Interviews can be recorded optionally if participants agree. If a participant is not able to solve a task or step it will be noted as a fatal usability issue. For later interviews with a more standardized set of tasks the issues are to be classified in the following way:

1. Fatal (Task could not be finished successfully or in a proper way)
2. Serious (Task could not be finished on the first attempt or user performance is bad)
3. Minor = (The user hesitates, is not sure or does not feel comfortable with the flow)

For each interview the UIE team provides an interview outcome. The document contains all tasks, observation notes and comments of participants. Additionally the interviews collect demographic characteristics as well to prepare data needed for personas. After a valid number of interviews exists they are analysed and summarized.

Interviews for PubMan Release 2

Interview series I

• Munich: 2 Interviews

Interview series II

• Nijmegen: 9 Interviews

Interview Analysis

Interviews for PubMan Release 3

Interview series I

Place	Max Planck Institute of Molecular Plant Physiology, Berlin: 2 Interviews Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Golm 2 Interviews Max Planck Institute for Human Development, Berlin 2 Interviews
Date/Time	August 6/7
Status	Closed

Interview Series II

Place	Harnack-Haus, Berlin: 3 Interviews
Date/Time	Mittwoch, 05. November 2008/09:00-12:00
Status	Closed

R3 Interview Analysis

Interviews for PubMan Release 4

Interview series I

Place	Max Planck Digital Library, Munich: 4 Interviews
Date/Time	April - June
Status	Open

Interview Series II

Place	Max Planck Institute for Foreign and International Social Law, Munich: 2 Interviews
Date/Time	April - June
Status	Open

R4 Interview Analysis

Interviews for FACES Release 3 (Prototype test)

Place	Max Planck Institute for Human Development
Date/Time	To be scheduled
Please note	We need an information about your status (expert/non-expert) Please take a note behind your name.
Status	Planned

Expert Interviews

Workshops

Participants	5 - 8
Supervisor	1 - 2
Equipment	Equipment provided by UIE Team
Duration	4h - 6h
Result	A rough draft of a graphical user interface part.
Steps	Introduction to a GUI task Participants work on paper prototypes Question and Answers Comparison of Results Clustering Rework if necessary Preparation plus dissamination of results

For each workshop the UIE team prepares a topic. The following topics are already covered:

Workshops 2008

• Scheduled: 09.12.2008 - 10.12.2008, Bibliotheca Hertziana - Max Planck Institute for Art History

Topics: A brainstorming can be found on Faces GUI.

• User Interface Evaluation/Adding Lists of Authors, MPDL Berlin
• User Interface Evaluation/Easy Submission, Nijmegen

Workshops 2007

• User Interface Evaluation/Short Item View, MPDL Munich

Software based Evaluation

Currently the pubman prototype is monitored by an open source application called ClickHeat. This solution generates pictures called heat maps. Heat maps show where users click (dots) and how often (colour).

Example:

Heat Map of Depositor Workspace

Software based evaluation is not conducted for R3. Currently no open source application is available for analysing dynamic pages.

Graphical User Interface

User Interface Engineering

Publication Management

Max Planck Digital Library