Mod02 Requirements需求分析

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課程大綱

·•需求階段主要目標

·•企業流程

·•軟體功能

·•軟體 操作流程/運作流程

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需求階段主要目標

·•了解軟體範疇

·•功能面需求（FRs）

·•非功能面需求（NFRs）

·•應產出需求規格書

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企業流程

·•流程導向 / 狀態導向

·•了解軟體定位

·•可以使用Activity / State Machine diagram

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軟體功能

·•功能面需求

·•Initial Use case diagram

·•Use case diagram refinement

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Use case diagram

• A use case is a contract of an interaction between the system and an actor.

• A full use-case model comprise of:– A diagram, describing relations between use-cases and

actors.– A document describing the use case in details

• Focus “WHAT”

Use Case

Use case in diagram Use Case in scriptActor

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Humans MachinesExternal systems Sensors

Database PrinterOrganizational Units

參與者 Actors

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Lab2.1 Initial diagram

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Actors generalization

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Use case relations

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Lab2.2 Refinement

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軟體操作流程/運作流程

·•Interaction overview diagram

·•Activity diagram

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Activity diagram

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Lab2.3 Activity diagram

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Lab2.4 Activity diagram

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Interaction overview diagram

·•JUDE 不支援

·•以 Call Action 取代

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