Applying “web scale” patternsPeter Paul van de Beek

AMSTERDAM 16 - 17 MAY 2017

The shop for everyone

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Bol.com from online bookshop to portal for specialised online channels serving the entire Dutch-language region

3

Books Entertainment Electronics Toys

Preloved sales eReading

Small Appliances

White Goods

Marketing via bol.com

Baby

Cooking & Tableware

Health & Beauty Home & BedroomPets

Garden & DIY

2004-2007 2010

Sports & Leisure

1999-2003 2010 2011 2012 2013 2014 2015

Jewellery & WatchesBags & Accessories

SECOND-HAND

ePRODUCTS

COMMERCIAL

MARKETING

NEW SPECIALISED CHANNELS

ALSO WORTH KNOWING

Startup in a portacabin Active in Belgium Takeover by Ahold

2008-2009

• Over 7,4 million active customers

• Virtual footprint of almost 2 million per day

• Nearly 15 million products

• More than a 1.200 employees in Utrecht

• 1 in 2 Dutch and Belgian consumers who shop online, do so on bol.com

• Ranked among top 10 businesses for customer satisfaction

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Where is bol.com now?

> 95% > 75%

Brand awareness

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Our promises to our customers

CQRSEvent SourcingPolyglot persistenceMicro services

As a proposition managerI need real time stock levels in the web shopSo we can offer al kind of last mile services

Inventory Management

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CQRS

command query

Received Goods

Stock Corrections

Sales

Shipments

StockLevels

As a buyerI need to calculate the value of allowancesSo I can offer lower prices to our customers

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Event Sourcing

Event store

Event store

Invoicedpurchases

Consumersales

Condition Calculation

Invo

ices

& A

ccru

als

As a logistics plannerI need to handle different types of warehouse ordersSo I can handle a variety of services

As a retail platform billing managerI need to store and trace different kinds of transactionsSo I can invoice retailers

Polyglot persistence - Schema and schema less data

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Relational DB

Document DB

Key-Value Store

Column-family DB

As a CIOI need scalable and reliable softwareSo I can run a great web shop and innovate at speed

(micro) services

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• Smaller functional responsibility.

Or just smaller services;

• Independent deployment. Each

service has continuous

integration (CI) and continuous

deployment (CD);

• Mayfly

Thanks!till next bol.com