Accession Number:

ADA218940

Title:

A Visual Programming Language for Novices

Descriptive Note:

Technical rept.

Corporate Author:

CARNEGIE-MELLON UNIV PITTSBURGH PA ARTIFICIAL INTELLIGENCE AND PSYCHOLOGY PROJECT

Report Date:

1987-09-29

Pagination or Media Count:

53.0

Abstract:

Bridge Talk is presented a new approach to visual languages for novice programmers. The design of Bridge Talk is based on data about how novices learn to program. Bridge Talk allows novices to program with programming plans - - frame-like objects that capture essential program components like keep a running total and iterate down a data structure. Novices are focused on the interactions between plans, not on the implementation details for a particular plan. Beginning with plans as a basis for a novice programming language, we were forced to develop a programming formalism that can deal with multiple levels of detail, merged plan implementations, and interrelationships between plans. The actual visual presentation for the language is based on six design, implement, test with students, and redesign cycles. jhd

Subject Categories:

  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE