Colin Rooney is a founding member of the ADempiere project, and is a strong advocate of Free and Open Source Software and its use by businesses to reduce risk, reduce costs, and be more flexible.

Born in Dublin, Ireland, Colin has been involved in the development and deployment of business information systems since he began his IT career at Germany's Nixdorf Computers, in 1986. From there, Colin embarked on a long career working with many of Europe's biggest multinational companies, on projects in a wide range of business areas—from manufacturing to services, and CRM to accounting.

After sixteen years of living and working in several countries across Europe, in 2002 Colin returned to his native Ireland, from where he now provides a variety technical and business services, primarily based around ADempiere, to clients, via OpenBiz.ie.

Heng Sin Low, living in the city of Petaling Jaya, Malaysia, is one of the most active committers of the ADempiere ERP project at SourceForge. He has been into software development since 1997, performing business application development for small and big enterprises. He started his software development journey using the once-popular PowerBuilder tool, integrated into the Oracle database. As the world shifted to Java programming, Heng Sin Low shifted his focus to Java, in 2001. Before joining the ADempiere project, he was briefly engaged with the Castor and WebWork open source project. He is now the main maintainer of the ZK web client for ADempiere. His other major contributions include the porting of ADempiere to PostgreSQL.

At the time of writing the book, Sin Low was working at Idalica (M) Sdn Bhd in Malaysia, which is a development subsidiary of Idalica Corporation, USA.

Praneet Tiwari holds a Master of Business Administration from the Indian Institute of Management Bangalore, and a Master of Technology in Computer Science from the Indian Institute of Technology Delhi. He has been working on integrating ADempiere with other enterprise class software such as Glassfish, MySQL, and OpenDS. His interest areas include open source software, modeling of fixed income securities, Bioinformatics string algorithms, Abstract Algebra, and Multivariate Analysis. He is currently working with Sun Microsystems. He can be reached at <[email protected]> and <[email protected]>.