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SIntS 13/14 – T0.3 So you want to design an Interactive System ?

SIntS 13/14 – T0.3 So you want to design an Interactive System ?. Miguel Coimbra. What do you mean?. You want to pass the course So You need to do a nice course project, which involves HCI design But… You don’t know where to start! Read on: This is for you. The Secret. Plan ahead!

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SIntS 13/14 – T0.3 So you want to design an Interactive System ?

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  1. SIntS 13/14 – T0.3So you want to design an Interactive System? Miguel Coimbra

  2. What do you mean? • You want to pass the course So • You need to do a nice course project, which involves HCI design But… • You don’t know where to start! Read on: This is for you SIntS 13/14 - T0.3 - So you want to design an HCI system?

  3. The Secret • Plan ahead! • Break everything into small steps so things become manageable • Before you even begin to plan: • Choose a group (you need 3 people) • Choose a topic (one that everyone is comfortable with) • Discuss group management (meetings, contacts, etc.) SIntS 13/14 - T0.3 - So you want to design an HCI system?

  4. Tasks Advice: Perform tasks using this sequence • T1: Identify the stakeholders • T2: Initial studies • T3: Conceptual design • T4: Evaluation SIntS 13/14 - T0.3 - So you want to design an HCI system?

  5. T1: Identify the stakeholders • Stakeholders are everyone who cares about the system • Think: • Who is going to use it? • Who is going to build it? • Who is going to sell it? • Anyone else who might ‘care’ • How? • Tips: Brainstorm within the group. Discuss it with your friends and colleagues. Write them down on a list SIntS 13/14 - T0.3 - So you want to design an HCI system?

  6. Design as a negotiation process There are conflicting objectives in a design task. • Stakeholders • Simple: Consider the user as the single stakeholder • Complex: Consider all stakeholders • Too complex for this course!! • System design • Functional objectives must be met • User limitations must be taken into account • Technology limitations must be taken into account SIntS 13/14 - T0.3 - So you want to design an HCI system?

  7. The Magic Triangle SIntS 13/14 - T0.3 - So you want to design an HCI system?

  8. Tips for your design • Each of the three group elements studies one triangle corner • Group meeting: • Each member ‘defends’ one ‘corner’ • Group ‘negotiates’ a design solution • The negotiation stops when all participants are satisfied with the compromise • Suggestion: This works better if one of you is the ‘boss’ SIntS 13/14 - T0.3 - So you want to design an HCI system?

  9. T2: Initial Studies • User • What does the user know? What does he want? What is he capable of doing? What metaphors does he recognize? What is his technological awareness? • Technology • What technology can I use? What characteristics does it have? What alternatives can I find? • Objectives • What should the system do? Is something critical? Is something optional? What are the priorities of the various objectives? SIntS 13/14 - T0.3 - So you want to design an HCI system?

  10. But… how can I do this? • Get creative. Get on the field and dig • The web is powerful • Do you know anyone with a stakeholder profile? • Find contacts of final users: ask your lecturer, ask your family/friend, pick up the phone and call institutions, do something! • Remember: You are a student of the University of Porto. You are responsible for upholding the University’s reputation. Do not only be tenacious. Always be respectful. SIntS 13/14 - T0.3 - So you want to design an HCI system?

  11. T3: Conceptual design • Mental models • Design the system • Define how the system really is • Build a conceptual model • Define how you want the user to see the system • Build a system image • Define an image that will make the user create the intended conceptual model Tip: Use a cheap prototype. Paper or a simple GUI will do SIntS 13/14 - T0.3 - So you want to design an HCI system?

  12. T4: Evaluation • How will you know that your conceptual model is good? • How will you know that your system image is good? • Evaluate! • Prototype (cheap!) • Use adequate evaluation measures SIntS 13/14 - T0.3 - So you want to design an HCI system?

  13. Final tips • Plan ahead! • Whenever possible, use solid well-studied methodologies • Conceptual design, contextual inquiries, horizontal prototypes, semi-structured interviews, discount evaluation methods, etc. • Pay attention in class and use the slides for reference! • Use tutorial classes to discuss your project with your lecturer SIntS 13/14 - T0.3 - So you want to design an HCI system?

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