Balakrishnan, NarayanaswamyYi, HeGoroncy, Agnieszka2026-03-052026-03-0520260269-96481469-895110.1017/S02699648261001872-s2.0-105029859324https://doi.org/10.1017/S0269964826100187https://hdl.handle.net/20.500.14411/11177In this work, by considering coherent systems comprising independent components with discrete lifetimes, we introduce the notion of discrete-time signature and then discuss some of its properties. With the use of the introduced signature, a stochastic ordering result is also established. We then introduce transformation formulas for the discrete-time signature to facilitate the comparison of systems of different sizes. Some examples are also presented to illustrate all the results developed here.eninfo:eu-repo/semantics/openAccessCoherent SystemDiscrete-TimeSignatureStochastic OrderingTransformation FormulaArticle