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Lecture Human computer interaction: Lecture 8 - Professor Dr. Sajjad Mohsin

In this section we will discuss ‘off-the-shelf’ formalisms which can be used to specify interactive systems. The purpose of a formal specification is twofold: communication and analysis. | Lecture Interaction Design Basics– Part I Today’s Outline Interaction Design Basics Interactions And Intervention what is design Persona Central message The process of design HCI Focus of Design Some of HCI is focused on understanding: the academic study of the way people interact with technology. However, a large part of HCI is about doing things and making things that is called a design. Interaction Design Basics design: what it is, interventions, goals, constraints the design process what happens when users who they are, what they are like scenarios rich stories of design navigation finding your way around a system iteration and prototypes never get it right first time! Interactions And Interventions design interactions not just interfaces not just the immediate interaction e.g. stapler in office – technology changes interaction style manual: write, print, staple, write, print, staple, electric: write, print, write, print, , staple designing interventions not just artefacts not just the system, but also documentation, manuals, tutorials what we say and do as well as what we make what is design? Achieving goals within constraints goals - purpose who is it for, why do they want it constraints materials, platforms trade-offs Goal What is the purpose of the design we are intending to produce? Who is it for? Why do they want it? For example, if we are designing a wireless personal movie player, we may think about young affluent users wanting to watch the latest movies whilst on the move and download free copies, and perhaps wanting to share the experience with a few friends. Constraints What materials must we use? What standards must we adopt? How much can it cost? How much time do we have to develop it? Are there health and safety issues? In the case of the personal movie player: does it have to withstand rain? Must we use existing video standards to download movies? Do we need to build in copyright protection? Trade-off Choosing which goals or . | Lecture Interaction Design Basics– Part I Today’s Outline Interaction Design Basics Interactions And Intervention what is design Persona Central message The process of design HCI Focus of Design Some of HCI is focused on understanding: the academic study of the way people interact with technology. However, a large part of HCI is about doing things and making things that is called a design. Interaction Design Basics design: what it is, interventions, goals, constraints the design process what happens when users who they are, what they are like scenarios rich stories of design navigation finding your way around a system iteration and prototypes never get it right first time! Interactions And Interventions design interactions not just interfaces not just the immediate interaction e.g. stapler in office – technology changes interaction style manual: write, print, staple, write, print, staple, electric: write, print, write, print, , staple designing interventions not just artefacts .