Yi amfani da bin diddigi na ɓangarori biyu: haɗa kowace muhimmiyar buƙata da shawarwari da sassan da suka cika ta, sannan haɗa sassan da shaidar karɓa. Alaƙar baya tana nuna dalilin kasancewar sashe da buƙatun da wani canji zai iya shafa.
Ƙaramin jerin alaƙa da ake kula da shi
[Requirement R-12] --> [Decision D-04] --> [Refund workflow]
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+--> [Acceptance test T-18] <-----------+
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[Test evidence]
A ɗauka R-12 ya ce maimaita buƙatar mayar da kuɗi guda ba zai haifar da wata mayar da kuɗi ba. D-04 ya zaɓi dawwamammen lambar aikin kasuwanci da gano maimaitawa. Workflow yana aiwatar da wannan doka. T-18 yana maimaita buƙata bayan an kwaikwayi ɓacewar amsa, sannan yana tabbatar cewa har yanzu mayar da kuɗi guda ɗaya ce a kasuwanci.
