abstract decoupling, MOM abstract endpoint, service container and accidental architecture departmental issues integration and 2nd organizational issues problems with acknowledging messages ACLs (Access Control Lists) adoption by industry aggregator services Apache Axis application servers ESB connectivity integration brokers and management service containers and applications extensibility portal applications architecture data exchange canonical 2nd service-oriented, abstract endpoints and asynchronous conversations, orchestration services and asynchronous errors asynchronous processing, atomicity and asynchrony portal server deployment and reliability at-least-once delivery, messaging at-most-once delivery, messaging atomicity asynch and message-based ATP (Availability To Promise) manufacturer case study and partner integration case study auditing authorization, JMX and autonomy of messages