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Maximum flexibility in implementation is also provided as asynchronous messages can easily be serialized into a string of synchronous communication. It is much more difficult to map synchronous messages to an asynchronous communication at implementation. • These communications do not preclude certain types of architecture. We also examined the usefulness of different messaging mechanisms: • Broadcast communication, which is useful for low-usage, high-priority messages. • Publishâ subscribe, in which a number of different objects are interested in receiving some pieces of information from another object or set of objects.

Good listening and communicating skills are essential prerequisites for an architect. An architect is responsible for creating and getting in place a vision of the structure of the software and must therefore be able to understand the needs of the system as expressed by other team members. The architect must also be able to express to the team how the architecture will support those needs and at the same time provide possibilities for extension and growth. The architect also needs to be able to communicate the system architecture to a diverse set of audiences, such as business executives, managers, developers, marketing, and so on.

As well as being experienced in design and implementation, an architect must be well versed in systems he or she had no experience in constructing. Well-structured object-oriented systems, and systems generally, have common recurring patterns that emerge. These patterns, be they structural and/or dynamic, lead to an understanding and characterization of a specific architecture, such that the same principles can be reused in a totally different system. • An architect is unlikely to be responsible for designing the microarchitectures of a system, but he/she must be able to understand and allow for the use of such structures within the larger framework of the system.

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