Theobjectiveoftheresearchwastorevealtheconstraintsfacedbythe
teachersin implementing authenticassessmentviewed from curriculum
2013 in SMK Negeri1 Banyumas.The method ofthis research was
descriptivequalitativestudy.TheparticipantsofthestudyweretwoEnglish
teachers who are experienced in teaching English more than two
departmentsinavocationalschool.Interviewandobservationwereusedto
collectthedata.Interview wasgiventotheteacherstoknow whattheir
opinionaboutimplementingauthenticassessmentviewedfrom curriculum
2013.Observationwasdonetoobservetheimplementationofauthentic
assessmentin English learning process.Having collected the data,the
researcheranalyzedthem throughdatareductionanddatapresentation.
From the data analysis,the constraints of implementing authentic
assessmentviewedfrom curriculum 2013arelimitedtimetoimplement
authenticassessmentandtoomanyinstrumentsofauthenticassessment
itself.Moreover,limitedtimestoimplementtheassessmentcausedthe
teachermanipulatedtheassessment.