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Design a Smart Home Interface

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typically characterized by some planned behavior that<br />

follows scripts described by recipes. These recipes are<br />

either explicit or implicit. Implicit recipes are just<br />

remembered by individuals while explicit recipes are<br />

externally documented in books, on notes, or by<br />

digital media. Cooking can be a social event but it is<br />

an individual task most of the time. Otl Aicher<br />

distinguishes four task categories with about 250 tasks<br />

that are performed in a kitchen:<br />

(1) preparation,<br />

(2) concocting,<br />

(3) cooking and<br />

(4) arranging .<br />

4.0 User-Centered <strong>Design</strong><br />

Here we focus on two tasks: weighing (preparation<br />

task) and mixing (concocting task). Additionally we<br />

also look at the recipe selection and recipe tracking<br />

task. Following Aicher, cooking is best supported if<br />

the main activity area requires little movements and<br />

provides enough space in immediate reach. He<br />

distinguishes three main activity areas: formulation<br />

area for preparation and concocting, cooking area, and<br />

washing area. Formulation areas are provided by<br />

tables, cooking areas by stoves, and washing areas by<br />

tables, sinks, and/or dish washers.(Maass & Filler,<br />

n.d.)<br />

The design of everyday objects is not always intuitive and at times it<br />

leaves the user frustrated and unable to complete a simple task. How<br />

many of us have bought a VCR that we have struggled to used and<br />

missed recording our favorite programs because we misunderstood the<br />

instructions or had to put up with the clock blinking 12:00 because we<br />

didn‟t know how to stop it? Do we have to put up with designs like these?

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