Interaction: human-machine interface, ergonomics, complexity of the interaction.

HCI problems. Knowing the WEB: The roots of the Web: Hypertext; networks and browsers. Architectures, Web addresses.

Person-machine interfaces. Basic skills for the development of a Web system. Separating content and presentation. Need for design standards. Definition of the interaction model. Interface. Interface examples. Complexity levels of interaction.

Usability: definition, examples, Affordance and feedback. Definition of usability. Usability evaluation measures. Learnability and memorabilility. User manuals. Human centered design. Design vs implementation. Use cases.

User Design: interaction design, use cases, scenarios, actors, accessibility, design examples.

Web interfaces design: Fitts' law; browsing; accessibility; kinds of interaction; problems and specificity; Small World assumption; Interactive Objects; Prototyping.

Usability Evaluation: Criteria and metrics. Heuristic criteria of Nielsen and Norman. Usability tests: methodology and examples.

Knowing the user: Attention: selective and divisive attention. Memory: short-term and long-term memory How to take into consideration memory limits in in the design. The vision: eye anatomy; vision acuity; vision features; optical illusions.

Graphic design. Features: Clarity; Discriminability; Clarity; Conciseness; Consistency; discoverability; readability; comprehensibility. Minimalism vs. maximality. Role of the images. Grids and alignments. Visual pathways. Gestalt theory. Continuity Law; good form law; past experience law; proximity law; similarity Law; Closure law. Use of colors.

Text design: Colors and polarity; The Gulpease index; The text in the web; Legibility and readability. Guidelines.

Knowing the user: The motor system. Feedback, Fitts' law, exponential law of practice,

Design the error and guidelines

Study of a graphic presentation of the project and exam.

GIMP: Study on an open source environment for graphical design. Presentation of the final project.
AppInventor: An Open source IDE for App development

1. Interaction Design: Beyond Human-Computer Interaction, 5th Edition Helen Sharp, Jenny Preece, Yvonne Rogers ISBN: 978-1-119-54725-9 May 2019
2. R. Polillo. Facile da usare. Una moderna introduzione alla ingegneria della usabilità, Milano: Apogeo 2010
All the course material can be downloded at UnitusMoodle
The dates of the exams and reservations are handled on the Gomp
For other questions send an e-mail at Prof.ssa Paola Vocca vocca@unitus.it.