The DELTA chart: A Method for R&D Project Portrayal

  • Author Warfield, John N., Hill, J. Douglas
  • Publisher Engineering Management, IEEE Transactions on (Volume:EM-18, Issue: 4 ) pp. 132-139. [reprinted in Battelle Monograph No. 1, June 1972, pp. 42-50) DOI: 10.1109/TEM.1971.6448351

A description of a new kind of flow-chart, designed to incorporate not only events and activities but also decision and logic functions. DELTA charts can display a number of different options, as well as `loops' in project plans, at the research and development stage. Slightly modified version of this paper later published in Battelle Monograph No. 1 “A Unified Systems Engineering Concept.”

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