HL7 Interface Documentation. Ascend HL7 Interface Specification Documentation Version: 5-5-2010 This document describes the standard specifications for Hann's On Software (HOS) interfaces as of the version date above. Contact HOS for any information regarding interface support for new messages, features, etc. that may have been added to the interfaces, but not yet documented in these specifications. General Specifications Standard (Preferred) Interface Specifications Other options Standard Incoming or Outgoing Message Types Our standard interface uses typical HL7 Version 2.2 or 2.3 records, messages, fields, definitions and processing rules. The remaining documentation is organized as follows: General HL7 definitions and rules, as implemented by our standard interfaces HL7 Messages and their segment combinations, as supported by our standard interfaces Detailed information about each support segment, including field descriptions and requirements General HL7 Definitions and Rules HL7 Messages HL7 Segments Fields "….
Data Types. HL7 Interface Documentation. Ascend HL7 Interface Specification Documentation Version: 5-5-2010 This document describes the standard specifications for Hann's On Software (HOS) interfaces as of the version date above. Contact HOS for any information regarding interface support for new messages, features, etc. that may have been added to the interfaces, but not yet documented in these specifications. General Specifications Standard (Preferred) Interface Specifications Other options Standard Incoming or Outgoing Message Types Our standard interface uses typical HL7 Version 2.2 or 2.3 records, messages, fields, definitions and processing rules.
The remaining documentation is organized as follows: General HL7 definitions and rules, as implemented by our standard interfaces HL7 Messages and their segment combinations, as supported by our standard interfaces Detailed information about each support segment, including field descriptions and requirements General HL7 Definitions and Rules HL7 Messages HL7 Segments Fields "….
Data Types. Search Health Level Seven. Event Notifications (Database Engine) Publish–subscribe pattern. In software architecture, publish–subscribe is a messaging pattern where senders of messages, called publishers, do not program the messages to be sent directly to specific receivers, called subscribers. Instead, published messages are characterized into classes, without knowledge of what, if any, subscribers there may be. Similarly, subscribers express interest in one or more classes, and only receive messages that are of interest, without knowledge of what, if any, publishers there are. Pub/sub is a sibling of the message queue paradigm, and is typically one part of a larger message-oriented middleware system. Most messaging systems support both the pub/sub and message queue models in their API, e.g. Java Message Service (JMS). This pattern provides greater network scalability and a more dynamic network topology. Message filtering[edit] In the pub/sub model, subscribers typically receive only a subset of the total messages published.
Topologies[edit] History[edit] Advantages[edit] Event (computing) Event driven systems are typically used when there is some asynchronous external activity that needs to be handled by a program. For example, a user who presses a button on his mouse. An event driven system typically runs an event loop, that keeps waiting for such activities, e.g. input from devices or internal alarms. When one of these occur, it collects data about the event and fires it, i.e. it dispatches the event to the event handler software that will deal with it. A program can choose to ignore events, and there may be libraries to dispatch an event to multiple handlers that may be programmed to listen for a particular event.
Events are typically used in user interfaces, where actions in the outside world (mouse clicks, window-resizing, keyboard presses, messages from other programs, etc.) are handled by the program as a series of events. Events can also be used at instruction set level, where they complement interrupts. This model is based on three entities: Groupe de stratégies de messagerie instantanée.