García Merayo, MercedesAndrés Sánchez, CésarNúñez García, ManuelCha, SChoi, JYKim, MLee, IViswanathan, M2023-06-202023-06-202008-10Cavalli, A., Gervy, C., Prokopenko, S.: New approaches for passive testing using an extended finite state machine specification. Journal of Information and Software Technology 45, 837-852 (2003) Bayse, E., Cavalli, A., Núñez, M., Zaïdi, F.: A passive testing approach based on invariants: Application to the WAP. Computer Networks 48(2), 247–266 (2005) Andrés, C., Merayo, M., Núñez, M.: Passive testing of timed systems (2008),http: //kimba.mat.ucm.es/-manolo/papers/atva08-passive-extended.pdf Merayo, M., Núñez, M., Rodríguez, I.: Formal testing of systems presenting soft and hard deadlines. In: Arbab, F., Sirjani, M. (eds.) FSEN 2007. LNCS, vol. 4767, pp.160-174. Springer, Heidelberg (2007)978-3-540-88386-910.1007/978-3-540-88387-6_36https://hdl.handle.net/20.500.14352/531256th International Symposium on Automated Technology for Verification and Analysis. OCT 20-23, 2008. Seoul, SOUTH KOREA.This paper presents a methodology to perform passive testing based on invariants for systems that present temporal restrictions. Invariants represent the most relevant expected properties of the implementation under test. Intuitively, an invariant expresses the fact that each time the implementation under test performs a given sequence of actions, then it must exhibit a behavior in a lapse of time reflected in the invariant. In particular, the algorithm presented in this paper are fully implementedengbook parthttp://www.springerlink.com/content/75336n003w032743/fulltext.pdfhttp://www.springerlink.com/open access519.8Computer ScienceTheory & MethodsInvestigación operativa (Matemáticas)1207 Investigación Operativa