Enterprise SOA: Designing IT for Business Innovation

Chapter ONE. ESA in the World of Information Technology Enterprise Services Architecture (ESA) is SAP's blueprint for how enterprise software should be constructed to provide maximum business value. The challenge facing most companies is...

Chapter TWO. The Business Case for ESA The fundamental challenge facing businesses today is to determine whether IT is the solution to problems, or is the underlying problem itself. Where do you start? For the purposes of this book, we wi...

Chapter THREE. Evolving Toward ESA You might wonder, "What are we getting ourselves into with ESA? This isn't just about the technology, is it?" ESA isn't "just" about anything. ESA is about changing all dimensions of IT so that every dol...

Chapter FOUR. ESA Fundamentals: Learning to Think ESA The preceding chapters provided an overview of ESA, along with a survey of ESA's business value and information on how a company can evolve toward ESA. While these chapters effectively...

Chapter FIVE. The Structure of ESA So far, this book has focused on framing the issue and explaining the context for ESA. The explanation has covered the business value and the general outline of how ESA creates value. This chapter dives...

Chapter SIX. The Enterprise Services Community No software company would ever claim that it is single-handedly able to meet every one of its customers' requirements. Instead, software companies work closely with systems integrators (SIs),...

Chapter SEVEN. Creating a Roadmap with the ESA Adoption Program As this book has elucidated thus far, ESA provides a technical and business blueprint that can help large organizations structure and manage their IT resources in a flexibl...

Chapter EIGHT. The Enterprise Services Repository and the Enterprise Services Inventory In many ways, the Enterprise Services Repository is the heart of ESA. The Enterprise Services Repository is the design-time repository of service...

Chapter NINE. Project Mendocino: A Product Based on Consuming Enterprise Services On any given workday, information workers at companies around the globe can be found performing the same task: planning time off for a vacation. It starts...

Chapter TEN. ESA at Work: Examples from the Field In many ways, the power of ESA must be unlocked through the imaginations of enterprise architects and business process designers. It is in the trenches of business, while battling to survi...

Chapter ELEVEN. SAP xApps Composite Applications for Analytics SAP xApps composite applications for analytics enable people to take effective and timely action based on a thorough understanding of a business process and its context. By...

Chapter TWELVE. The Architecture and Development Tools of Composite Applications Composite applications are the vehicle through which all of the elements of ESA come together to create value. The idea of composite applications is wonderfu...

Chapter THIRTEEN. Supporting Composite Applications Composite applications represent a new world for application architects and developers, a world in which many long-standing assumptions no longer apply. We have dedicated most of this bo...

Chapter FOURTEEN. Web Services Basics Enterprise services are web services. For this reason, to comprehend what ESA can do for you, you have to understand the basic principles of web services. The CHM file was converted t...

Chapter FIFTEEN. Creating Enterprise Services in ABAP This chapter discusses how to create services in ABAP. First, we'll address some developer concerns regarding enterprise services creation and compare web services with enterprise se...

Chapter SIXTEEN. Creating and Consuming Services in Java Sap Netweaver provides extensive support for Java developers. In this chapter, we'll look at creating services in Java and at using Web Dynpro to create a service consumer for the A...

Chapter SEVENTEEN. ESA and IT Governance In order to assert better control over IT, align it with business objectives, and keep its potential benefits and risks in balance, corporations in recent years have paid considerable attention to...

Chapter EIGHTEEN. ESA Life Cycle Management and Operations At this stage in the ESA evolution, it's understandable that we spent the bulk of this book focused on the construction and deployment of enterprise services rather than on life i...

Chapter NINETEEN. ESA Security One of the more daunting challenges facing enterprise architects is reinventing the security model for business processes and the composite applications that support them. Traditionally, securing monolithic...