R15: The system should allow user to decline invitation R16: The system should show user the statistic in the chart tab R17: The system should allow user to update his profile. R18: The system should allow user to log out. Requirement Traceability Table: Delete Login Plan Add Chart Profile Home Friend Event Friend Activity Activity Activity Activity Identifiers R1 X R2 X R3 X R4 X R5 X R6 X R7 X R8 X R9 X R10 X R11 X R12 X R13 X R14 X R15 X R16 X R17 X R18 X
R15: The system should allow user to decline invitation R16: The system should show user the statistic in the chart tab R17: The system should allow user to update his profile. R18: The system should allow user to log out. Requirement Traceability Table: Login Plan Event Activity Activity Add Friend Activity Delete Friend Activity Chart Profile Home Identifiers R1 X R2 X R3 X R4 X R5 X R6 X R7 X R8 X R9 X R10 X R11 X R12 X R13 X R14 X R15 X R16 X R17 X R18 X