Introduction to Usability: History, Classic Examples, Core Principles Representing Users: Goal and task analysis, Personas, User scenarios, Agile user stories and epics. Methods of Data Gathering and Analysis: Lean UX, Ethnographic observation, Interviews, Surveys, User studies, Usability labs, Eye tracking, Biometric measurement, Qualitative and quantitative data methods. Creating Personas: Collecting data sources, Initial drafting, Assessing with stakeholders, Final crafting and prioritization. Working with Personas: Scenario definition with personas, Functionality prioritization with personas, Quality Assurance with personas. User-centered design processes: User participation, Iteration, Identifying expand/collapse phases. Collaboration with Engineering: Managing the tech-centered and human-centered design processes together.