Service that are performed by distributed objects. Objects is the specified task that are performed by the software. Business problems sloved by use of classes: 1.cheap, transparent communication 2.Object identity and lifetime maintained by infrastructure Business problems solved by use of communication: 1.use of heterogeneous platform 2.explicit communication Solution Service that are performed by distributed objects. Objects is the specified task that are performed by the software. Business problems sloved by use of classes: 1.cheap, transparent communication 2.Object identity and lifetime maintained by infrastructure Business problems solved by use of communication: 1.use of heterogeneous platform 2.explicit communication.