Visual Smalltalk Enterprise: Difference between revisions

Revision as of 17:43, 2 September 2010

Revision as of 06:03, 11 October 2010

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to the new smalltalk environment.

Information about the DNG project can be foundis at: http://www.dng.st

== PARTS Workbench ==

Visual Smalltalk Enterprise usually comes with another sub-system called the PARTS Workbench. This system allows the layout of components, which can then be connected using a visual representation of event-message links. The programmerProgrammers can add scripts to particular components and build nested-components. (The programmerThey can also enhance the functionality of the main VSE Smalltalk system and utilizeuse that within the PARTS Workbench.)

Although the PARTS Workbench allows very easy development of small systems (somewhat after the style of Visual Basic) it is argued that it encourages fragmentary development. The natural style of using this system tends to lead to lots of links and scripts - it is not based around the idea of 'model' (as used in 'Model View Controller' approaches common in many Smalltalks as well as in other languages). However, as an 'HCI' for programmers, the PARTS Workbench has a lot ofmany features that are (sadly) not found in modern Smalltalks. - itIt has an immediacy that makes it very good for introductory teaching and for the rapid implementationrapidly ofimplementing applicationsprograms with visual interfaces.

==Copyrights, and Licensinglicensing==

A result of the complicatedcomplex history is that the copyright and licensing situation is unclear. A typical recent VSE development environment is made up of many elements many of which were developed by third parties and sold separately but are now included with the distribution.

The situation with the most recent release (VSE 2000) is: