The Election service must ensure that a vote is recorded whenever any user thinks they have cast a vote.
Discuss the effect of maybe call semantics on the Election service.
Would at-least-once call semantics be acceptable for the Election service or would you recommend at-most-once call semantics?
Maybe call semantics is obviously inadequate for vote! Ex specifies that the voter’s number is used to ensure that the user only votes once. This means that the server keeps a record of who has voted. Therefore at- least-once semantics is alright, because any repeated attempts to vote are foiled by the server.
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