Introduction to HCI

A field of study that focuses on designing, evaluating, and implementing interactive systems for human use, considering the human-computer interaction phenomena.

Systems that are easy to learn, remember, and use effectively, efficiently, safely, and enjoyably.

A set of principles that guide the design of usable systems, focusing on effectiveness, efficiency, and user satisfaction within a specific context.

It combines knowledge from various fields, including computer science, cognitive science, psychology, sociology, anthropology, and human factors engineering, to create effective and user-friendly systems.

Designing products that are usable by everyone, taking into account human diversity, including personality, cognitive abilities, cultural differences, and disabilities.

The impact of poor design on users can lead to frustration, reduced usability, and negative effects on effectiveness, productivity, morale, and safety.

The goal of HCI is to create systems that are usable, effective, and efficient, ultimately enhancing users' experience and achieving their goals.

The evolution of HCI has shifted from text-based systems to graphical and interactive systems, reflecting the advancement of technology and user expectations.

Design is not a rigid, predictable process, but a creative and evolving one. It requires finding the perfect balance between technical feasibility and appealing to users.

These guidelines help make design decisions by weighing different factors.

Predictive Principles help us compare design solutions using metrics like speed and error rates.

This phase of design focuses on gathering and documenting all the requirements for the system.

These requirements define how the system should behave, like validating a PIN in an ATM or allowing purchase of items in an e-commerce website.

These requirements determine how the system should operate, including aspects like performance, reliability, and safety.

These requirements focus on the user experience, including navigation, ease of use, and visual appeal.

Preliminary design focuses on the high-level architecture of the system, while detailed design dives into specifics of interactions and user interface elements.

Designing interfaces that cater to the needs of diverse user groups, taking into account their skill levels and experience.

Understanding the specific tasks users perform with a system by observing, interviewing, and breaking down complex tasks into smaller steps.

Direct Manipulation, Menu Selection, Form Fill-In, Command Language, Natural Language.

A set of established guidelines for interface design that promote user-friendliness and ease of use. It involves considering consistency, usability, feedback, error prevention, and easy reversal of actions.

Providing clear instructions and messages to help users understand and correct errors. It involves providing alternatives, restricting inappropriate inputs, and providing guidance.

Using consistent terminology, classifications, and structured explanations to define and describe user interfaces.

Revealing how events in an interface flow and interact with each other using causation and relationships. They show the cause-and-effect dynamics of interfaces.

A field that uses theories, principles, and guidelines to design, develop, and evaluate user interfaces focusing on improving the usability, efficiency, and satisfaction of users interacting with technology.

The design of user interfaces where users directly manipulate objects on the screen.

A disadvantage of Direct Manipulation is that visual representations can become overwhelming for users, especially in complex designs.

Refers to the gap between a user's physical actions and the corresponding virtual response within a Direct Manipulation interface. This can range from weak (indirect) to strong (direct) interaction.

A user interface design approach that combines Direct Manipulation with Virtual Reality, creating highly immersive and interactive experiences where the environment changes dynamically based on user movements.

Immersive experiences in Virtual Reality aim to enhance user engagement, simulate real-world scenarios, and enhance user understanding of the virtual environment.

A comprehensive evaluation process ensuring the system meets design goals and requirements.

Experts with expertise in application or interface domains provide feedback on the system's design.

This method uses a set of established design principles to assess a system's usability.

Testing conducted to measure how easy a system is to use, understand, and enjoy.

A usability testing method that uses simple, early prototypes (like paper sketches) to gather user feedback on layout, wording, and sequencing.

A usability method that focuses on ensuring consistency in visual elements, terminology, fonts, colors, and layouts throughout the interface.

A usability method where experts simulate user interactions to identify potential usability issues.

A formal evaluation method that involves experts discussing strengths and weaknesses of a system's design.

A usability testing method where participants use the product in their natural environment, like their home or office.

A usability testing method where participants are asked to try and break the system by finding flaws and vulnerabilities.

A usability testing method where participants think aloud about their actions and thought processes while using the product.

Gather written feedback from users about their experience with the product, supplementing other usability methods.