A two-tier hierarchical scheduler for the micro-electronic industry

Ezey M. Dar-El, Pnina Sofer, Itzik Molcho, Ofer Shtrichman

Research output: Contribution to journalArticlepeer-review


This paper describes a scheduling methodology operating on a two-tier hierarchical scheduling level - the tactical, or master production level, and the operational level. The master production plan is solved through linear programming with load departments to meet the forecast and capacity constraints, while the operational plan uses the binary generation method for solving the multi-resource allocation problem. Initial field runs have reduced product lead times by about a third, while overtime is maintained at lower levels than used previously.

Original languageEnglish
Pages (from-to)81-87
Number of pages7
JournalInternational Journal of Production Economics
Issue number1-3
StatePublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Economics and Econometrics
  • General Business, Management and Accounting
  • Industrial and Manufacturing Engineering
  • Management Science and Operations Research


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