J.D. Edwards’ OneWorld B73.3 11
can use the batch of one concept as a compromise between real-time and
store and forward processing.
• Multitiered networks
The database management systems consume a great deal of computer
resources. Separating the J.D. Edwards’ applications from the database
management systems allows optimum computing power for both needs. This
creates a three-tiered network that consists of PC’s that connect to application
servers, that connect to database servers. A fourth tier would be created if
data warehousing was bought into play. Multitiered networks complicate
matters, but also improve performance and scalability.
• Multiple servers by vertical
OneWorld can work with mixed databases concurrently across multiple
machines. Objects and data can be accessed from several mixed databases
including Microsoft Access, Oracle, SQL Server, and AS/400. You can also
have separate servers for different applications. For example, you can have a
separate server for accounts receivable, and a separate server for
manufacturing. You do not need a single, central server. This concept of
multiple servers working together is central to the concept of CNC.
• Data replication
Several facilities for data replication are provided by J.D. Edwards, including
OneWorld application for data replication that allows for just-in-time
replication, pull replication, push replication, and non-mode replication; and
the table conversion utility that is a batch replication process. OneWorld can
also utilize several open system tools that support the replication of data.
• Departmental and application work groups
To keep data replication simple, it is often preferable to replicate data to an
application server in a single group that performs the same business
functions. In a departmental work group, workstations would have no
replicated data. Only business objects would be replicated and maintained on
the department's application server. This setup decreases the amount of data
replication by minimizing the data transfer between the workstations and the
application servers.