'Bill Verplank suggests a four-step process. First, the designers are motivated by an error or inspired by an idea and decide what the ideal goal for the design should be. Next they find a metaphor that connects t motivation to the end goal and develop scenarios to create meaning. Then they work our step-by-step what the tasks are and find a conceptual model that ties them all together and clarifies the modes. Finally they decide what kind of display is needed., what the controls are, and how to arrange them.'
1. Motivation - errors or ideas
2. Meaning-metaphors and scenarios
3. Modes-models and tasks
4. Mappings-displays and controls
Case Study: Stanford University student project. "A Haptic Pager"
1. Motivation: Celine is annoyed by pagers always going off. She wants to solve was how to make a silent pager that she could feel without having to listen to it.
2. Metaphor and scenario: She wants something that is more like holding hands-to hold hands at a distance and give them a squeeze. The scenario is that Fred is at home, and she wants to communicate that shopping is taking longer than expected. She wants to be able to communicate without interrupting whatever it is he is doing.
3. Model and task: She is connected to him and nobody else is, so that when she squeezes his hand he is the only one to feel it. Tasks: set up the connections, trigger the squeeze, both for sending and receiving.
4. Display and control: She could wear some kind of necklace that would vibrate, like the vibrating mode in pagers and cell phones to let her know someone is calling. The sending could be controlled by a squeeze. Celine works for a company that makes a handheld computer operated by a stylus so she uses this to set up the connection.
Using this framework with my project.
1. Error and idea
The ability to review messages and digital memories at any given time has detached users from a sense of human presence. Social media broadcasts memories indiscriminately, and i want this to be subverted where memories and messages are conveyed via a secret channel or 'active memory'. I want this sharing to be conducted both actively and passively. I want to to reintroduce the intimacy and presence to memory sharing over a distance. Transient memory are memories which don't exist very long, and therefore the idea is that this can convey presence and the short life-cycle could increase the value that the users have in the memories they are experiencing.
2. Metaphor and scenario
Like the 'tin can telephone'. There's no answer machine. If you are receiving a message, you know that the person on the other side is definitely there. It conveys presence and intimacy: nobody else can 'tap into' your secret channel.
3. Model and task
A conceptual model: the two users are connected directly to each-other so that when a message is sent the other person can receive it. Tasks: set up the framework for the type and formatting of memory sharing, set up the connections and protocols for sending and receiving. Can the interface send AND receive or is it a one-way system?
4. Display and control
The current display is a standalone, non-screen-based tactile interface with buttons and sensors. The idea is to have something static: non-wearable that is installed for transient memory sharing. It is possible that a wearable device could trigger the presence: i.e. a notification is sent when the person walks through their front door. This could prevent a system from registering interactions from unauthorised people i.e. if a friend sits in the communication chair. This is a possible diversification of the concept: perhaps in a family setting it would be appropriate for multiple family members to connect to one who is away.
The system would probably have multiple control inputs.
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