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Work on #190: urm/puml updates

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* added pumlid where it was missing and possible
* removed pumlid where it generated a bad image
* regenerated some incorrect puml's
* added 'left to right direction' puml prefix to some diagrams to improve the automatic layouting
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NooBxGockeL
2017-03-25 22:07:10 +01:00
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event-asynchronous/README.md
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## Intent
The Event-based Asynchronous Pattern makes available the advantages of multithreaded applications while hiding many
of the complex issues inherent in multithreaded design. Using a class that supports this pattern can allow you to:-
(1) Perform time-consuming tasks, such as downloads and database operations, "in the background," without interrupting your application.
(2) Execute multiple operations simultaneously, receiving notifications when each completes.
(3) Wait for resources to become available without stopping ("hanging") your application.
(4) Communicate with pending asynchronous operations using the familiar events-and-delegates model.
of the complex issues inherent in multithreaded design. Using a class that supports this pattern can allow you to:
1. Perform time-consuming tasks, such as downloads and database operations, "in the background," without interrupting your application.
2. Execute multiple operations simultaneously, receiving notifications when each completes.
3. Wait for resources to become available without stopping ("hanging") your application.
4. Communicate with pending asynchronous operations using the familiar events-and-delegates model.
![alt text](./etc/event-asynchronous.png "Event-based Asynchronous")