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Chris Adzima
eBay - Senior  Engineering Manager

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Chris is a Trust and Safety Rules Analyst at eBay.com. Chris has been an analyst at eBay for over 7 years and has been writing business rules for over 2. 

He focuses on projects that ensure quality communication between eBay customers. 

Aside from that main focus, he also creates and manages rules for Half.com focusing on the prevention of fraud and loss due to stolen financial instruments.

More about Chris

Using business rules to increase eCommerce sales by managing customer-to-customer relationships

eBay has over 105 million active members.  These customers communicate with each other using our platform by sending  over 2 million messages a day. In some cases this communication is used to drive business away from eBay and to other platforms and companies. We call this activity Grey Market member to member communications. Not only does this grey market activity hurt eBay's revenue, it leaves buyers without the protection that transacting through eBay provides.

With so many messages sent through the eBay message system each day, we needed quick analysis and turnaround to ensure we had a product in production as soon as possible. Using an agile business rules approach, I created rules  that would detect and prevent
these grey market transactions from being  initiated. This agility significantly reduced our cost to implement and has  provided an amazing ROI. My rule set has increased site Gross Merchandise  Sold (GMS) by $200 million a year. With the success of this initial phase, I  am now creating more rules to increase detection and provide more revenue for  the company.

Key take-away
• Greater ROI by utilizing a small team to manage and create
business rules
• Using Business rules to prevent customer to customer
communications that harm company revenue
Building business rules based on keyword data mined from customer to  customer communications
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