Database Reference
In-Depth Information
T
ABLE
12-1
Key Java Application Development Steps
SAP Java Four-System-Landscape
A four-System-Landscape is recommended for Java application development. In ABAP sys-
tems, a three-System-Landscape consisting of development (DEV), quality assurance
(QAS), and production (PRD) systems is recommended. ABAP programs can be developed
fully in the DEV system and moved to QAS for testing. Once the testing is successful, they
are approved to be imported into production. However, for Java systems, the development
process is different and, therefore, a four-System-Landscape is recommended. In the Java
development process, Java code is developed as software components (.jar and .ear files),
which are transported to a build/consolidation system. In this system the software compon-
ents are assembled into a working application, and this is then transported to a testing sys-
tem. Once tested successfully, the application can be transported to production system.
The complete NWDI infrastructure with the four systems is shown in
Figure 12-1
.
More
details of the NetWeaver Developer studio and NWDI components such as DTR, CBS, and
CMS will be discussed in more detail in subsequent sections of this chapter.
