An order-picking operations system for managing the batching activities in a warehouse

Cathy H Y Lam, King Lun Tommy Choy, G. T S Ho, Ka Man Lee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)


Nowadays, customer orders with high product variety in small quantities are often received and requested for timely delivery. However, the order-picking process is a labour-intensive and costly activity to handle those small orders separately. In such cases, small orders are often grouped into batches so that two or more orders can be served at once to increase the picking efficiency and thus reduce the travel distance. In this paper, an order-picking operations system (OPOS) is proposed to assist the formulation of an order-picking plan and batch-handling sequence. The study integrates a mathematical model and fuzzy logic technique to divide the receiving orders into batches and prioritise the batch-handling sequence for picking, respectively. Through the proposed system, the order-picking process can be managed as batches with common picking locations to minimise the travel distance, and the batch-picking sequence can be determined as well. To demonstrate the use of the system, a case study in a third-party logistics warehouse is presented, and the result shows that both the order-picking activity and labour utilisation can be better organised.
Original languageEnglish
Pages (from-to)1283-1295
Number of pages13
JournalInternational Journal of Systems Science
Issue number6
Publication statusPublished - 3 Jun 2014


  • distribution logistics
  • fuzzy logic
  • order batching
  • order picking

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Theoretical Computer Science
  • Computer Science Applications

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