Insider Guides

To find an Insider Guide, click on the first letter of their last name

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Dr. Bjarne Berg, Comerit
Dr. Berg

Dr. Berg has extensive experience in implementing in-memory solutions for SAP analytics in Europe and in the USA. In addition to his SAP HANA work at ComeritLabs, he has also collaborated with IBM on testing, development, and benchmarking SAP HANA for BW solutions. He is a frequent speaker at SAPinsider conferences, including the annual BI and Reporting & Analytics conferences. Dr. Berg’s book SAP HANA: An Introduction, coauthored with Penny Silvia, is now in its second edition. More from this favorite »»

Scott Cairncross, TruQua Enterprises
Scott Cairncross

Scott Cairncross is a TruQua principal and a recognized thought leader in the area of Enterprise Performance Management and Business Intelligence, focused on SAP and SAP BusinessObjects solutions. Scott has spoken at ASUG/SAPPHIRE and at SAPinsider’s annual Financials, Reporting & Analysis, and BI conferences, and is a featured speaker at SAPinsider's multi-city BPC Seminar. More from this favorite »»

Joshua Greenbaum, Enterprise Applications Consulting
Joshua Greenbaum

Joshua Greenbaum has over 30 years of experience as a computer programmer, system architect, author, consultant, and industry analyst. He began his career at the dawn of the PC, database, and enterprise software markets, and has observed firsthand the evolution of the products and technologies that drive enterprise innovation today. Josh works extensively with end-user organizations to align their business and technology strategies, as well as assisting leading enterprise software companies to understand the needs and requirements of their customer and prospect bases. Josh is frequently quoted in the technical and business press and blogs at You can reach Joshua at

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Rohana Gunawardena, Quality Systems & Software
Rohana Gunawardena

Rohana Gunawardena is the SAP practice director at Quality Systems & Software, a specialist SAP consulting firm. Rohana has been working with SAP solutions since 1992, focusing on the order-to-cash process with emphasis on global rollouts, business segment reporting, cross-module integration, and the financial impact of supply chain management transactions. Rohana has spoken at many SAP conferences, including SAPinsider’s Financials events, and has published more than 20 magazine articles on various aspects of SAP. He is a fellow of the Institute of Chartered Accountants in England & Wales. More from this favorite »»

Karl Kessler, SAP
Karl Kessler

Karl Kessler ( joined SAP SE in 1992. He is the Product Manager of the SAP NetWeaver foundation — which includes SAP NetWeaver Application Server, the ABAP Workbench, and the Eclipse-based ABAP development tools for SAP NetWeaver — and is responsible for all rollout activities.

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John Krakowski, SAP America
John Krakowski

John Krakowski ( is a Senior Product Manager for SAP Solution Manager with the Solution Management for Application Lifecycle Management team. He has been an SAP employee for 15 years and has been actively involved with SAP Solution Manager since 2001. More from this favorite »»

Danielle Larocca, SpinifexIT
Danielle Larocca

Independent Consultant

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David Ludlow, SAP
David Ludlow

David Ludlow ( is Global Vice President of Product Marketing, focusing on global human capital management (HCM) solutions for SAP and SuccessFactors. The team works with customers, partners, industry analysts, and the entire SAP and SuccessFactors ecosystem to help ensure SAP/SuccessFactors delivers top HCM solutions for their customers.

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Jeremy Masters, Worklogix
Jeremy Masters

Jeremy Masters is an author, speaker, and SAP ERP HCM subject matter expert, and is coauthor of a number of SAP books, including E-Recruiting with SAP ERP HCM and SAP HCM Infotypes. Jeremy is the co-founder and managing partner of Worklogix, which provides SAP ERP HCM professional services and software solutions to Fortune 1000 companies. More from this favorite »»

Matthias Melich, SAP
Matthias Melich

Dr. Matthias Melich ( studied English literature at the University of Rochester (New York), and mathematics and English philology at the University of Cologne. He also received his Ph.D. in computer-based language learning from the University of Cologne in 1993. In January 2005, Matthias took over responsibility for the SAP Solution Manager Global Product Management team. Today, he is Vice President of ALM Solution Management. More from this favorite »»

Paul Ovigele, Ovigele Consulting
Paul Ovigele

Paul Ovigele is an independent SAP ERP financials consultant. He is a certified chartered accountant and an MBA graduate. He has worked as an ERP financials consultant for since 1997 in both North America and Europe, specializing in implementing the Financial Accounting and Controlling modules along with their integrated areas. Paul is the author of the SAP PRESS book 100 Things You Should Know About Financial Accounting with SAP, and has delivered numerous training sessions to finance professionals at both the functional and managerial levels. His articles appear on, where he also serves as a technical adviser, and has presented at various SAP financials conferences in both Europe and the United States. More from this favorite »»

Hans Thalbauer
Hans Thalbauer

Senior Vice President
Extended Supply Chain and IoT

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