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Describing the System Landscape in the SLDLocate this document in the navigation structure

Use

The SAP System Landscape Directory (SLD) is the central information provider in a system landscape.

Note

The SLD contains two types of information relevant for SAP NetWeaver Process Integration:

  • Component information : Information about all available SAP products and components, including their versions. If there are any third-party products in the system landscape, they are also registered here

    At design time of the integration objects, the component information is extracted from the SLD to define process integration scenarios.

    For more information, see: Enterprise Services Repository

  • Landscape description : This contains all installed systems in a system landscape.

    At configuration time, the landscape descriptions are needed to determine the system information of the business partners involved. It consists of business systems.

    Business systems are logical systems that communicate with each other by sending and receiving messages. They can be SAP or third-party systems.

    • An SAP system has one or more clients that function independently of each other as logical units at runtime. Each of these clients represents a business system in Process Integration.

    • A third-party system is also a logical unit that functions as a sender or receiver. Therefore, third-party systems are also business systems in this sense.

    Business systems are based on technical systems. More information: Separation of Business Systems and Technical Systems

If you have more than one SLD instance, you must ensure that all content is synchronized. The SLD has export and import functions for this purpose.

For more information, see:

Procedure

Configure Business Systems in the SLD

First, define and configure all business systems involved in the process in the SLD.

For more information, see: Configuring Business Systems in the SLD

Only once you have done so can you define the business systems as communication components in the Integration Directory and address them as the senders and receivers of messages in later configuration steps.

Note

You create communication components of type Business System for those systems that you are familiar with.

Configure Groups and Transport Targets in the SLD

An Integration Server enables communication between business systems at runtime. It cannot execute business logic.

You can assign a group of business systems to an Integration Server. A business system group is a logical grouping of business systems that use an Integration Server to communicate with each other.

For more information, see: Configure Groups and Transport Targets in the SLD

Tasks for Changes in SLD

After you have made any changes in the SLD, always ensure that you clear the cache for SLD data in the Integration Directory. Only once you have done so can you access up-to-date SLD content (for example, by using input help).

For more information, see: Delete SLD Data Cache

Change in the SLD

Effect in Integration Directory

Create/delete a business system

The input help for business systems (for example, when you define a business system component) is only updated once you clear the SLD cache.

Delete an Adapter Engine

The input help for Adapter Engines in the communication channel is only updated once you clear the SLD cache.

In the following cases, ensuring that a change made in the SLD has also taken effect in the Integration Directory requires manual effort.

Change in the SLD

Effect in Integration Directory

Change a business system (registered as an SAP or non-SAP) system

For more information, see: Technical System Landscape

For this change to take effect in the relevant business system service, you must compare the data with the SLD .

For more information, see: Business System (Communication Component)

Change a business system (adapter-specific identifiers, for example, the logical system)

For this change to take effect in the relevant business system service, you must compare the data with the SLD .

For more information, see: Communication component