国立政治大学电子计算机中心.ppt

2001/11/1 Testing and Modeling Skills in eXtreme Programming- 92年度第二學期網路媒體系統專題課程 廖峻鋒 Mar 24,2004 NCCU Computer Center 大綱 XP程式員的一天 Agile Modeling Modeling skill – UML Modeling skill – Finding Objects 分組討論 Testing skill – Unit Testing using JUnit QA An XPer’s Day Agile Modeling 由Scott Ambler提出。 補充了XP在Modeling部份的不足。 What Are Agile Models? Agile models: Fulfill their purpose Are understandable Are sufficiently accurate Are sufficiently consistent Are sufficiently detailed Provide positive value Are as simple as possible Agile models are just barely enough! Lifecycle of an Agile Model Agile Model-Driven Development AM務實作法 Active Stakeholder Participation Apply the Right Artifact(s) Collective Ownership Consider Testability Create Several Models in Parallel Create Simple Content Depict Models Simply Display Models Publicly Iterate to Another Artifact Model in Small Increments Model With Others Prove it With Code Use the Simplest Tools Apply Modeling Standards Apply Patterns Gently Discard Temporary Models Formalize Contract Models Model to Communicate Model to Understand Reuse Existing Artifacts Update Only When It Hurts XP與Agile Modeling Add AM practices only when they will enhance your productivity Create a model only when it adds value Create a document only when : adds value your stakeholders are willing to pay for it your stakeholders understand the trade offs UML UML的全名為統一塑模語言(Unified Modeling Language) 由Booch, Rumbaugh, Jacobson所發展1997年11月，正式成為OMG標準 UML支援到軟體開發的各個階段，無論從需求收集、分析、架構設計、以及元件設計，均可使用UML的符號來表達。 Rational Rose概觀 Rational Rose的四個Views Use Case view Logical View Component View Deployment View Core Elements Core Relationship Core Relationship Use Case Diagram 類別圖(Class Diagram) Composition Generalization Sequence Diagram循序圖 主要呈現出在一個時間序列上，使用案例情節是透過那些物件彼此間傳遞訊息(message)而完成的。方塊代表的是物件﹔箭號代表由某個物件傳給另一個物件的訊息。 State Diagram狀態圖 主要呈現狀態轉換的次序，及在物件存在時，接受到事件時所反映出的狀態變遷和行動(Action) 。 Collaboration Diagram合作圖 可以作為想更深入瞭解及類別之間是如何互動。 Component Diagram元件圖 主要表達系統被切割成那些軟體元件以