QXtend Deployment
The QAD QXtend application consists of several components. You can deploy these components in various ways on different hosts, platforms, and architectures.
QXtend Deployment Tiers
QXI Deployment Tiers shows the QXI deployment tiers and their relationships.
QXI Deployment Tiers
Note: This deployment description uses tiers for explanatory purposes. While the grouping of components is significant, the numbering of the tiers is not.
The QXtend deployment consists of five tiers:
• Tier 1 consists of the QXI servlet and QXO servlet, which support the QXO administration UI and contains the Tomcat application server.
Note: You can install the Inbound and Outbound servlets on the same Tomcat server or on a different Tomcat server.
• Tier 2 consists of the QXtend adapter code and the QAD Enterprise Applications server. Install these components on the same host. The QXO adapter code generates outbound documents through the QAD Enterprise Applications user interface or through direct calls to API programs. The QXO service interface adapter code specifically supports interoperability involving requests originating from the QAD EE Financials module. You may need to deploy Tier 2 multiple times (once for each QAD Enterprise Applications installation).
• Tier 3 consists of the Progress AppServer and the QXO server code (the server code handles data operations for the qxevents, qaddb, and qxodb databases).
• Tier 4 consists of the qxevents database and qaddb production database. These databases communicate with the QXO server code and are installed on the same tier for data integrity reasons.
• Tier 5 consists of the qxodb database. This database contains data that the event service extracts from the qxevents database.
The sequence for a single-tier deployment is as follows:
1 QXO servlet (tier 1)
2 qxodb database (tier 5)
3 qxevents and qaddb databases (tier 4)
4 QXO adapter code on the QAD Enterprise Applications Outbound server (tier 2)
5 QXO server code on the Progress AppServer (tier 3)
Note: Tiers 2 and 4 (which contain the Adapter and QXEvents DB) can be multiplied according to the number of QAD Enterprise Applications instances installed.
