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Use Case Modeling
by Kurt Bittner, Ian Spence
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Results Use Case Modeling
Use case Wikipedia Use case modeling typically starts from identifying key stakeholder roles actors interacting with the system and their goals or objectives the system must fulfill an outside perspective These user goals then become the ideal candidates for the names or titles of the use cases which represent the desired functional features or services provided by the system UML 2 Use Case Diagrams An Agile Introduction Figure 1 provides an example of a UML 2 use case diagram Use case diagrams depict Use cases A use case describes a sequence of actions that provide something of measurable value to an actor and is drawn as a horizontal ellipse Actors An actor is a person organization or external system that plays a role in one or more interactions with your system Getting Started With Use Case Modeling WHAT IS USE CASE MODELING The core items of use case modeling are use cases and actors Use Cases Whenever we discuss the requirements of a system we recognize one or more people or things that have an interest in the behavior of that system These are called the stakeholders of that system Use Case Modeling BA325 Global Knowledge What Youll Learn Identify the types of projects for which use case modeling adds the most value Ensure access to all prerequisite information prior to use case modeling Identify and document actors using usercentric analysis Document project scope and support scope decisions with use case UML TUTORIALS Enterprise Architect UML modeling tool The Use Case Model describes the proposed functionality of the new system A Use Case represe nts a discrete unit of interaction between a user human or machine and the system A Use Case is a single unit of meaningful work for example login to system register with system and create order are all Use Cases What is a Use Case Definition from Techopedia A use case is a software and system engineering term that describes how a user uses a system to accomplish a particular goal A use case acts as a software modeling technique that defines the features to be implemented and the resolution of any errors that may be encountered The Use Case Model UML Tutorial Sparx Systems The Use Case Model Actors Use Cases are typically related to actors which are human or machine Includes and Extends relationships between Use Cases Sequence Diagrams Sequence diagrams provide a graphical Implementation Diagram A Use Case is a formal Use Case Modeling 1st Edition In Use Case Modeling experienced use case practitioners Kurt Bittner and Ian Spence share their tips and tricks for applying use cases in various environments They delve into all aspects of use case modeling and management demonstrating how development teams can capitalize on the approachs simplicity when modeling complex systems Use Case Benefits Use cases break requirements down into shorter scenarios that readers can more easily understand Benefits of use case modeling Use cases focus on the users of the system not the system itself thus the real system needs are brought to light early on
