In This Chapter
* Why we wrote this book
* What is SAP(r) NetWeaver(tm)?
* Laying out the IT land
Everybody's gotta have a vision. For Columbus it was finding a better route to Asia by sailing west. (Of course, there was a new world in his way.) For Galileo it was inventing a telescope to view the planets and discovering satellites around Jupiter. For you, it might be making sense of all the technoid gobbledygook your company has to deal with day in and day out so you and your IT people don't end up old before their time.
If so, then you'll be glad to hear that at its core, SAP NetWeaver is an ambitious vision for improving Information Technology, including the software and hardware that runs the world of business. But SAP NetWeaver is not just a vision: It's a set of tools and methodologies that can take your company where it needs to go.
Admittedly, SAP NetWeaver is not your normal topic for a For Dummies book. It's not a hobby such as yoga, sailing, or personal finance. It's not a word processor or even a programming language. SAP NetWeaver is a super-sized serving of technology and tools made up of products and concepts that are useful to the corporate decision maker and the technologists who work together to solve huge information challenges.
With SAP NetWeaver, you can
And because it is based on the latest technology and approaches to business processes, SAP NetWeaver also increases flexibility and enables change throughout your enterprise. Not bad, huh?
Why Write a Book about SAP NetWeaver?
Even if SAP NetWeaver isn't a typical topic for a For Dummies book, SAP and its customers and partners know that it's a topic that sorely needs the For Dummies approach, which puts complex ideas and processes into terms everybody can understand. The world of Information Technology has become so vast and complex that it's hard to keep track of all the techie terms and acronyms and how they relate to each other. Enterprise application integration, data warehouses, enterprise portals, business process management, model-driven development, and service-oriented architecture all fall under the umbrella of SAP NetWeaver. Where does the average guy or gal go to even start to make sense of it all?
This book gives you an option to plowing through the conceptual algebra that you read in the Harvard Business Review and the McKinsey Quarterly. This book helps you avoid the deep complexity of the technology that makes enterprise applications work. Instead, it provides a clear and simple explanation of the entire landscape of Information Technology by explaining how SAP NetWeaver can help you master this complexity and get more value from your investment.
A Technology Symphony
Sometimes it seems like brain surgery is child's play next to grasping the world of enterprise resource planning (ERP). SAP NetWeaver is such an ambitious undertaking with so many dimensions that it is hard even for experienced IT professionals to quickly understand its structure and potential. But here's a starting point: Think of SAP NetWeaver as essentially an orchestra of technologies with many programs and toolkits, each adding its own voice to the composition to allow you to do things that could never be done before.
We dissect SAP NetWeaver in detail in Chapter 3. In Chapter 1 we explain SAP NetWeaver's goals, how to make sense of all the pieces, and what it can do - that is, just what kind of music you can make with it!
SAP NetWeaver 101
When in doubt about the meaning of things, most folks usually revert to the dictionary. So, we start your SAP NetWeaver education with a little definition.
SAP NetWeaver is a set of capabilities that are provided by many different SAP products constructed to work with each other to make applications work together, build new applications on top of existing applications, and lower the total cost of owning applications.
Okay, granted it's a mouthful. So, for you visual learners out there, we drew you a picture. Figure 1-1 shows the most common way that people explain what SAP NetWeaver does.
What you're looking at are the core capabilities of SAP NetWeaver: the integration of people, information, and process. When we say SAP NetWeaver has a capability such as people integration, it simply means that it enables you to bring people together and help them work more efficiently. Following the same logic, information integration means you can bring together information from a variety of locations and have it make sense in the context of what your folks do everyday. Okay, now you can do this last one yourself: Process integration means ... that's right, coordinating the flow of work across departments, divisions, and between companies.
A closer look at Figure 1-1 reveals that each type of integration breaks down into different capabilities. This book has several chapters dedicated to explaining the products that SAP has created to deliver these capabilities.
See Chapter 3 for a detailed overview of which capabilities are provided by which product.
What's in it for me?
So, if a capability enables you to do something, how exactly do you use that capability to get your work done? The answer is that SAP paid attention to how people really do their jobs and designed its products to make technology easier for people to use.
Other products help in different ways. Parts II and III give a detailed explanation of what each product can do, along with examples of how each is used in the real world.
Take another look at Figure 1-1 and you see that the people, information, and process-integration capabilities of SAP NetWeaver all sit on an application platform called the SAP(r) Web Application Server (SAP Web AS). This is a tool for building and running applications. The SAP Web AS is the technical guts of the platform and the foundation of all the other stuff that goes on top.
Another important part of the SAP NetWeaver equation is the SAP Composite Application Framework (CAF). The SAP CAF is a tool for creating new applications by combining pieces of existing applications to do entirely new things. Finally, Lifecycle Management is a set of utilities that help make the process of installing software, running it, upgrading it, and fixing bugs as smooth as possible. These two boxes were placed on the right and left sides of the box in Figure 1-1 to show that they play an important supporting role in SAP NetWeaver.
Making music with Information Technology
Another way to think of SAP NetWeaver is to understand its goals. SAP NetWeaver is designed to
As you find out more and more about SAP NetWeaver, it's useful to consider how every feature helps meet these goals.
Bringing all the instruments together
So, now you understand something about the pieces of SAP NetWeaver and what goals the folks at SAP had in mind when building it. But what, exactly, does this thing do?
To understand that, you have to grasp the importance of a little thing called prepackaged integration. As you'll read more about in Chapter 2, making applications work together is vitally important to most companies. That's where prepackaged integration comes in.
Prepackaged integration simply means that all of the products in SAP NetWeaver were built to work together out of the box. The integration was done at the factory, when the products were created, not after the fact. This represents a huge savings in both money and time when it comes to making applications work together. In the past, companies spent gobs of money just to make programs work together that weren't intended to. SAP NetWeaver eliminates this financial hemorrhage from your IT budget.
Another benefit of prepackaged integration is that SAP NetWeaver comes ready to work with the mySAP(tm) Business Suite, a collection of enterprise applications. These applications arrive at your office ready to plug into many of the products in SAP NetWeaver, which saves you yet more time and money.
It's important to remember that none of this prepackaged integration prevents integration with products and tools from other vendors. This flexibility simply makes it cheaper and easier to connect SAP systems with each other as well as connecting with non-SAP systems.
So, with the concept of prepackaged integration in mind, you can begin to grasp exactly what can be done with SAP NetWeaver: It is an excellent tool for integrating existing applications and building new ones.
Most people who have used SAP NetWeaver will tell you it can do absolutely anything, but in more practical terms, here's how it's actually being used out there in corporate land:
Because companies create these applications based on prepackaged integration, they cost much less to extend and maintain. The bottom line is that these advanced development tools enhance productivity and increase savings.
Want to hear more specifics about what SAP NetWeaver does out there in real-world businesses? The chapters in Part IV describe different scenarios that show how SAP NetWeaver creates real value.
IT: The Lay of the Land
Before we get too far into our explanation of SAP NetWeaver, it's important that you get a feel for the world in which SAP NetWeaver exists, the world of Information Technology (IT to you). So, we devote the rest of this chapter to helping you understand what IT encompasses.
Very simply, Information Technology is the application of technology (including telephony and computer technology) to create, store, exchange, and use information in all its forms to help your organization run better.
How big is IT? Well, IT spending accounts for about 3 to 5 percent of the revenues of most companies, which means that total global IT spending runs into the hundreds of billions of dollars, euros, yen, or what have you, every year.
Everybody's a specialist
Now being a big, complex thing (about the size of the known universe at last count), IT naturally has many specialties and subspecialties that essentially fall into the following groups:
Understanding the different specialties is a start to understanding IT. The next step is understanding the different types of people and organizations that take care of all this technology.
Who are the players in the world of IT?
The reason that the field of IT exists is that companies need help in solving the problems that all this wonderful technology carries with it - problems of compatibility, communication, and conflicting protocols. The IT industry provides this help in many different forms.
So just who are these wonderful people who solve (or try to solve) all your
technology problems? Here's a rundown. Platform vendors, or what SAP calls
simply technology vendors, sell general purpose tools for creating software.
Excerpted from SAP NetWeaver For Dummies by Dan Woods Jeffrey Word Excerpted by permission.
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