Working with SLD 
SLD is the central information repository for your system landscape. It contains information about technical systems, landscapes, business systems, products, and software components in your system landscape. You can view and manage this information in the SLD.
You have a user assigned to a particular SLD security role. For more information about SLD security roles, see Configuring SLD Security Roles in the Post-Installation Guide - SLD for SAP NetWeaver 7.0 at http://www.sdn.sap.com/irj/sdn/nw-sld.
In your Web browser, enter the URL of the SLD using the following pattern:
http://<host>:<port>/sld.
You can perform the following activities in the SLD:
Create technical systems
Create landscapes, add systems to landscapes, create hosted systems, and add sub-landscapes to landscapes
Create business systems and business system groups
View the Software Catalog, create third-party products and software components, and define software dependencies
Define name prefixes for development and reserve names