The PalmStockTrader

1
The PalmStockTrader

• Jeff Luan, Nino Walker, Ravi Dhanjal and Harvard
  Pan
• Please direct all questions to Jeff Luan,
  jeffluan_at_bigfoot.com
• CS160
• Professor Landay

2
Presentation Overview

• PalmStock Background

Initial Design and Changes before HE
Major Changes
Four Major Changes to the Prototype
Interface Demonstration
Common Tasks
Questions?
3
PalmStock Background

• Original Design

Designed for Mobile Traders with Palm devices
Quick and easy account info and stock trading
Watch List to keep track of stocks.
Initial Changes
PALM
Keep it a Trader - Fast, Easy
Cut Back Extraneous Features
4
PalmStock Background 2

• Pre-HE Prototype

See Handout for Screenshots
What We Expected out of HE
It was too simple, not enough features
Problems mostly with Watchlist
Help, Buy/Sell Screens Potential Trouble
5
Major Changes

• Popup Menus to Focus Screens

HE Popup menus violate Palm standards
Switch to focus screens instead
Slightly slower than a popup menu
More detail on the selected stock
Consistent with Palm standards
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Major Changes 2

• Watchlist Nested Tabs

Nested Tabs inconsistent with Palm standards
Switching screens more consistent
Less screen real estate and clutter
No restraints on category names or quantity
Merged with the Recent cache on Quotes page
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Major Changes 3

• Security Model Redesigned

Double password model annoyed evaluators
Now password only for transactions
Focus Screen Consistency
Orders had split screen that was inconsistent
Now only summary listed tap to get full details
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Demonstration - Overview

• Logging in, Quoting, Adding to list.

Task simplified- no passwords, no adding.
Checking your Holdings, Selling Stock.
Analyze account, stocks and do transactions
Switching lists, Adding to another list.
List management basics.
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Demonstration - Note

• Waba VM Unstable

New language, unstable, low resources
May crash, wont be in final product.
10
Questions?
Contact the PalmStock Group
Jeff Luan (jeffluan_at_bigfoot.com)
Nino Walker (kohole_at_mytalk.com)
Harvard Pan (akhran_at_usa.net)
Ravi Dhanjal (rdhanjal_at_uclink4.berkeley.edu)