The authors of »SAP S/4HANA«

Devraj Bardhan

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Devraj Bardhan is a senior architect with IBM Germany and has led several large SAP transformations projects, designing and implementing SAP global templates and growing IBM’s SAP HANA capability. He has 22 years of IT experience, and has become a global subject matter expert for SAP S/4HANA at IBM. You can reach Devraj via Twitter @devbard or on the SAP Community Network.

Axel Baumgartl

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Axel Baumgartl is part of the Center for Digital Leadership at SAP, where he leads the area of asset and method development. In his current role, he provides thought leadership and best practices for C-level customers based on his more than 18 years of experience with SAP transformation projects. He is the author of several publications about SAP products and developed a method for enterprise architecture blueprinting. You can reach Axel via Twitter @AxelBaumgartl.

Dmitry Chaadaev

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Dmitry Chaadaev is an SAP ERP Financials consultant and project manager for IBM Russia. He has more than 10 years of SAP project implementation and rollout experience in several industries. He earned a physics engineering degree from Moscow Engineering Physics Institute in 2005 and an economics degree from Moscow Aviation Institute in 2010. Dmitry actively participated in the development of innovative solutions within IBM for SAP S/4HANA.

Nga-Sze Choi

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Nga-Sze Choi is the SAP S/4HANA logistics subject matter expert at IBM’s SAP Global Center of Competence. She has more than 13 years of experience in global business transformation programs, leading design and implementation of SAP solutions in the areas of order-to-cash and procure-to-pay.

Mark Dudgeon

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Mark Dudgeon is the Global SAP CTO of IBM Global Business Services, SAP Service Line. He has more than 20 years of experience in architecture design and delivery for some of IBM’s largest SAP deployments. Mark’s role also includes ensuring that IBM has the right partnerships, capabilities, and offerings to support its customers in their digital transformation journey with SAP. You can reach Mark via Twitter @MarkPDudgeon.

Asidhara Lahiri

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Asidhara Lahiri is an SAP executive architect at the IBM India Client Innovation Centre and has designed and reviewed client architecture, defined IBM services, and grown IBM's SAP HANA capability. She has more than 17 years of IT experience architecting solutions in several global implementations. She is an SAP solution architect for one of the largest oil and gas companies and is a global SME in SAP S/4HANA at IBM. Asidhara has filed two patents and is a member of the IBM Academy of Technology. You can reach Asidhara via Twitter @AsidharaL.

Bert Meijerink

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Bert Meijerink is the SAP S/4HANA Finance lead at IBM’s SAP Global Center of Competence. He has more than 30 years of working experience in implementing financial systems worldwide, and more than 20 years of experience in designing and implementing SAP global templates.

Andrew Worsley-Tonks

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Andrew Worsley-Tonks is the European SAP S/4HANA migration lead for IBM Global Business Services. He has extensive experience in complex SAP upgrade and migration projects, having led IBM’s upgrade initiatives in Europe for more than four years. In his current role, he helps existing SAP customers define their SAP S/4HANA migration strategy and implementation projects. You can reach Andrew via Twitter @A_WorsleyTonks.

Print edition



Current titles

  • Cover of SAP Cloud Platform: Cloud-Native Development
    SAP Cloud Platform: Cloud-Native Development

    Gairik Acharya, Govind Bajaj, Avijit Dhar, Anup Ghosh, Asidhara Lahiri

    489 pages, hardcover

    Learn to build cloud applications from the ground up using SAP Cloud Platform. Explore the Neo and Cloud Foundry development environments; pick your backend language from a selection including Java, Node.js, and ABAP; and create a frontend with SAPUI5 and More about the book

    from $69.99


    E-book | Print edition | Bundle
    • Build and deploy applications on the Cloud Foundry and Neo environments
    • Develop cloud-native applications with Java, Python, ABAP, and more
    • Manage your application’s lifecycle with continuous integration, continuous delivery, security, monitoring, and DevOps
  • Cover of SAP S/4HANA
    An Introduction

    Devraj Bardhan, Axel Baumgartl, Nga-Sze Choi, Mark Dudgeon, Asidhara Lahiri, Bert Meijerink, Andrew Worsley-Tonks

    647 pages, hardcover

    Whether you’re already en route to SAP S/4HANA or taking your first look, this book is your go-to introduction to the new suite. See what SAP S/4HANA offers for your core business processes: finance, manufacturing, sales, and more. Learn about More about the book

    from $69.99


    E-book | Print edition | Bundle
    • Learn what SAP S/4HANA offers your company
    • Explore key business processes and system architecture
    • Consider your deployment options and implementation paths