A variety of clients can request evaluations for certain input parameter sets via the uniform interface established by EVE objects (Figure 8.7) For instance, an optimizer sends requests to an EVE object without having to care about the class of the underlying module on the server side. External task-level clients are interfaced by tool agents; see Section 3.5.1 for details.
Figure 8.7:
EVE objects establish a uniform interface for evaluation
requests by internal and external clients and applications.