A Singapore chain consists of interlocking links, each formed from two circular plates joined by a single pin. The pins allow free rotation, giving the chain high flexibility and strength. Used in lifting slings, conveyor systems, and some automotive drives.
A Singapore chain is a type of Markov chain—a sequence of random events where the next state depends only on the current one. Applied in queueing theory, inventory control, and financial modeling.
Context determines which definition applies. The engineering term is older; the statistical usage is a specialized academic coinage.