This level of support allows users to put artifacts created with a VPL into a certain state in order to explore how the program will react to that state. Pragmatics: VPLs support the study of what programs mean in particular situations.This could include help functions providing documentation functions built-in to programming languages.
Semantics: VPLs may provide some mechanisms to disclose the meaning of programming primitives.Syntax: VPLs use icons/blocks, forms and diagrams trying to reduce or even eliminate the potential of syntactic errors helping with the arrangement of programming primitives to create well-formed programs.The general goal of VPLs is to make programming more accessible to novices and to support programmers at three different levels Visual programming environments provide graphical or iconic elements which can be manipulated by users in an interactive way according to some specific spatial grammar for program construction. VPLs may be further classified, according to the type and extent of visual expression used, into icon-based languages, form-based languages, and diagram languages. 2.6 Data warehousing / business intelligence.
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