5.4. Integration Points

5.4.1. Architecture Perspectives

Different mainframe integration designs have different integration points, which may span multiple tiers and layers. This allows flexibility and options in choosing the integration point that can accommodate local technical requirements and constraints. Table 5-1 recapitulates a list of technology approaches used to wrap back-end mainframe applications as Web Services. It also identifies what architecture components need to be installed in the Business Tier (on top of the application server), Integration Tier (middleware), and Resource Tier (in the back-end legacy system). These architecture components can act as an integration point where Java servlets or EJBs can be a “delegate” or a ...

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