It maintains an explicit representation of its own internal structure and uses it to carry out runtime customization safely. dynamicTAO is a CORBA-compliant reflective ORB that supports dynamic configuration. But often, they are not able to benefit from it because the middleware lacks the mechanisms to support monitoring (to detect when adaptation should take place) and on-the-fly reconfiguration. In many cases, application developers know when adaptive changes in communication and security strategies would improve system performance. Existing middleware is not prepared to react to these changes. Mobile and distributed applications are greatly affected by dynamic changes of the environment characteristics such as security constraints and resource availability. Modern computer systems have to deal not only with heterogeneity in the underlying hardware and software platforms but also with highly dynamic environments. Conventional middleware systems fail to address important issues related to dynamism.
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