ITasks

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The iTask system is actively developed, but has no regular release schedule. We provide alpha builds on request or on special occasions such as use during courses.
 
The iTask system is actively developed, but has no regular release schedule. We provide alpha builds on request or on special occasions such as use during courses.
  
The latest release is version 10.8 (Aug. 2010) for the [http://www.cs.uu.nl/wiki/IFL2010/WebHome The 22nd Symposium on Implementation and Application of Functional Languages] and can be obtained from [[media:iTasks-SDK-10.8.zip |here]].
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The latest development release is version 10.8 (Aug. 2010) which you can download below.
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[[media:iTasks-SDK-10.8.zip|Download iTasks SDK 10.8]].
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You also need a preview release of Clean 2.3 with a modified compiler which you can download from the [https://wiki.clean.cs.ru.nl/Download_Clean Clean download page] or directly using the link below:
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[[Media:Clean-iTasks-10.8.zip|Clean system for iTasks]]
  
 
== Getting Started ==
 
== Getting Started ==

Revision as of 13:58, 17 December 2010

Itasks-logo.png

The iTask system (iTasks) is a toolkit for programming workflow management applications in Clean.

With this toolkit workflows can be speficied using combinators in a very high level declarative monadic style. Workflows consist of typed tasks that produce results that can be passed as parameters to other tasks. Workflows are constructed by combining single steps sequentially or in parallel. From iTask specifications, executable workflow support systems are generated automatically.

The iTask2 GUI

This latest version features:

  • A highly declarative API for specification of dynamic workflows
  • A rich Ajax client interface for working on tasks
  • Automatically generated editors for entering and updating data in workflows.
  • A JSON based service API for spawning and interacting with running workflow instances
  • The possibility to change running workflow instances


Contents

Download

The iTask system is actively developed, but has no regular release schedule. We provide alpha builds on request or on special occasions such as use during courses.

The latest development release is version 10.8 (Aug. 2010) which you can download below.

Download iTasks SDK 10.8.

You also need a preview release of Clean 2.3 with a modified compiler which you can download from the Clean download page or directly using the link below:

Clean system for iTasks

Getting Started

To get started you need both the latest Clean release for iTasks and the latest release of the iTasks-SDK, which can be downloaded from this page. To combine them follow these steps:

  1. Unzip the Clean system into any directory on your system.
  2. Unzip the iTasks-SDK-XX.zip into the root-folder of the Clean System. This will create a folder 'iTasks-SDK'. It is required to put the iTasks system in this directory for the 'iTasks'-environment to work.
  3. Follow the instructions in 'readme.txt'. A build of the AJAX web-client is already included in the release, so you don't have to create one for yourself.

Browsers

The iTask system works with most browsers. IE 9 is a known exception, we are working on that.

Using the iTask system with Firefox can be very slow. This is caused by a delay that is added by Firefox for all events for localhost. There are several solutions and workarounds:

  1. type as url: about:config
  2. search for v6, you will see network.dns.disableIPv6
  3. toggle the value of this parameter to True.

Read more

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