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The general process of designing an App. In this project, I finished the high fidelity prototype.
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The first step of the whole process is to observe the shopping behaviors. I followed up several groups of typical user, recorded their shopping behavior and then interview them. After the observation and interview, all the data are documented.
*This study was done in China's supermarket.
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After the observation, here is the task analysis of shopping in a market. The diagram shows the process of shopping and additional activities people might perform in a store.
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This is the competence products analysis and functional analysis. Similar products are now very limited at App Store. After analyzing their interfaces and functions, I proposed the key functions of my “shopping aid”. Then I expand the key functions to a detailed functions map.
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There are five primary functions:
1. Online store that can help user looking for products.
2. Find a product using indoor positioning technology
3. Deals Notification
4. Scan Bar code to Acquire Product Information
5. Call for help when shopping
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Sketches of the interfaces and interaction. This stage aim at building up the interface and interaction, lay out different ideas, and make iterations via sketches quickly.
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First/Default screen.
When user sign in, the shopping list and history order of this user could be viewed in this device. Thus, users could create their list at home, and view the list when shopping.
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Product catalog.
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Product details.
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The indoor positioning technology could help user find a specific product in a big store.

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