Difference between revisions of "ITasks"

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At the '''ICFP 2007''' conference we first presented '''iTasks''' [http://www.st.cs.ru.nl/papers/2007/plar2007-ICFP07-iTasks.pdf],
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[[File:itasks-logo.png|right]]
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a multi-user workflow system for the web. Since then the system has evolved from a small library on top of the [[iData]] framework to
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The iTask system ('''iTasks''') is a task-oriented programming toolkit for programming workflow support applications in [[Clean]].
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a full fledged workflow language embedded in [[Clean]].  
 
  
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Using '''iTasks''' workflows can be speficied using combinators in a very high level declarative monadic style. Workflows consist
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With this toolkit, interactive systems can be specified using combinators in a very high level declarative monadic style. Programs are constructed by combining typed 'tasks'. These tasks produce results that can be passed as parameters to other tasks. Tasks are constructed by combining
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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.
 
single steps sequentially or in parallel.
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From iTask specifications, executable workflow support systems are generated automatically.
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From iTask specifications, executable web-based workflow support systems are generated automatically.
  
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Lately we have been working on version 2 of iTasks that takes the quality of the generated workflow support systems
 
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to a higher level and aims to offer end-users working on tasks a more user-friendly experience. We have presented this new incarnation
 
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of the iTask system at the '''IFL 2009''' conference, and we are working on getting it ready for an alpha release.
 
 
[[File:itasks2-gui.jpg|thumb|The iTask2 GUI]]
 
[[File:itasks2-gui.jpg|thumb|The iTask2 GUI]]
  
 
This latest version features:
 
This latest version features:
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* A highly declarative API for specification of dynamic workflows
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* A highly declarative API for specification of interactive systems as task compositions.
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* A rich Ajax client interface for working on tasks
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* Automatic generation of web-based user interfaces for entering and updating and viewing data.
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* Automatically generated editors for entering and updating data in workflows.
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* Automatic data persistance
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* A JSON based service API for spawning and interacting with running workflow instances
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* Automatic instant synchronization between different clients using html5 push technologies.
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* The possibility to change running workflow instances
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* Easy creation of JSON webservices
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* A builtin HTTP1.1 webserver
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* Integration framework for common client-side javascript libraries (for example google maps)
  
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== Installation ==
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Follow the instructions at [[Download Clean]] to install the ''Latest iTask and Clean Release''. Stable version (e.g. Clean 3.1) are not supported in combination with iTasks.
  
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== Download ==
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== Documentation ==
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For the [[AFP2008|AFP Summerschool 2008]] we made a special Clean release which includes
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You can find up-to-date documentation via the [https://cloogle.org Cloogle] search engine which indexes all standard libraries, external libraries, compiler errors, ABC instructions, builtins and syntax elements. Documentation of the concepts of iTasks is still mostly done in scientific papers (look for iTasks on the [[Publications]] page).
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the new compiler which can generate SAPL code for execution on the client.
 
  
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You can download this release at:
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== Browsers ==
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http://clean.cs.ru.nl/download/Clean22/windows/Clean2.2-iTasks-AFP2008.zip
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The iTask system supports recent versions of Firefox, Chrome and Edge.
  
 
== Read more ==
 
== Read more ==
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* [[ST_Publications|Papers about iTasks]]
 
* [[Workflow examples]]
 
* [[Workflow examples]]
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* Rinus' iTask pages [http://www.cs.ru.nl/~rinus/iTaskIntro.html].
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* [[ITasksProjectIdeas| Ideas for projects to improve iTasks]]

Latest revision as of 08:01, 22 September 2022

Itasks-logo.png

The iTask system (iTasks) is a task-oriented programming toolkit for programming workflow support applications in Clean.

With this toolkit, interactive systems can be specified using combinators in a very high level declarative monadic style. Programs are constructed by combining typed 'tasks'. These tasks produce results that can be passed as parameters to other tasks. Tasks are constructed by combining single steps sequentially or in parallel. From iTask specifications, executable web-based workflow support systems are generated automatically.

The iTask2 GUI

This latest version features:

  • A highly declarative API for specification of interactive systems as task compositions.
  • Automatic generation of web-based user interfaces for entering and updating and viewing data.
  • Automatic data persistance
  • Automatic instant synchronization between different clients using html5 push technologies.
  • Easy creation of JSON webservices
  • A builtin HTTP1.1 webserver
  • Integration framework for common client-side javascript libraries (for example google maps)

Installation

Follow the instructions at Download Clean to install the Latest iTask and Clean Release. Stable version (e.g. Clean 3.1) are not supported in combination with iTasks.

Documentation

You can find up-to-date documentation via the Cloogle search engine which indexes all standard libraries, external libraries, compiler errors, ABC instructions, builtins and syntax elements. Documentation of the concepts of iTasks is still mostly done in scientific papers (look for iTasks on the Publications page).

Browsers

The iTask system supports recent versions of Firefox, Chrome and Edge.

Read more

Retrieved from "https://wiki.clean.cs.ru.nl/index.php?title=ITasks&oldid=1769"