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Pragmatic Use Case Writing
Overview:

Without proper capture of requirements software projects have a high probability of failure. This 2-day course achieves a focused goal of writing effective, readable use cases to describe the user-centric, behavioral requirements of a software system or business workflow. This course is structured around a problem-driven approach, and students will learn use case techniques and concepts in a "just-in-time" manner, emphasizing the meaning and relevance of each technique and not just its notation. Numerous examples of both system-level and business-level use cases, and a non-trivial case study, let students see how a concept is described in the use case approach, and then immediately apply their understanding as they write three complete use cases in the course. At course completion, students will have a comprehensive understanding of use cases, how to write useful and effective use cases, and will have a keen appreciation of both the value and limitations of use cases in either procedural or object-oriented development lifecycles.

Audience:

Business or system analysts, technical managers, and software developers who wish to learn use case techniques for capturing requirements for software system development.

Prerequisites

Experience in requirements gathering, or systems analysis is desirable, but not mandatory.

Course duration:

2 days

Course outline:

Use Case Introduction

  • What is a Use Case?
  • Where Do Use Cases Fit?
  • What Will You Deliver?
  • Use Case Examples
  • Business: Apply for Life Insurance Policy
  • System: Withdraw Funds from ATM
  • Use Case Writing “Miniature”
  • The Writing Process in 5 slides
  • Course Case Studies
  • Example Case Study
  • Student Exercise Case Study
  • Identify Stakeholders & User Goals
  • Use Case Structure
  • Main Flow
  • Exception Flows
  • Use Case Scope
  • Business Use Cases
  • System Use Cases
  • Business Actors and Use Cases
  • Business Use Case Model
  • Business Actors
  • System Actors and Use Cases
  • System Use Case Model
  • System Actors
  • Use Case Style Topics
  • Essential Use Cases
  • Design-detail Use Cases
  • Style Guidelines for Use Cases
  • Audience for Use Cases
  • Discovering Actors & Use Cases
  • Primary and Secondary Actors
  • Business Actors and Use Cases
  • System Actors and Use Cases
  • The Use Case Diagram
  • Anatomy of the Use Case Diagram
  • <<include>> Relationship
  • <<extend>> Relationship
  • The Process for Writing Use Cases
  • Identify Candidates & Scope
  • Write the Main Flow
  • Identify the Exception Flows
  • Write the Behavior of each Exception Flow
  • Identify Candidate Use Cases
  • Goals of Use Cases
  • Identify Use Case Scope
  • Specify Type of Use Case
  • Identify Actors
  • Primary and Secondary Actors
  • Write the Main Flow
  • Working with a Single System-Scope Use Case
  • Identify the Exception Flows
  • Navigating the Main Flow
  • Write the Exception Flow Behavior
  • Examining the System’s Behavior
  • Automated Actors
  • Definition of an Automated Actor
  • Pre- and Post-Conditions
  • Guidelines
  • Use Cases with Similar Steps
  • Options for Dealing with Similar Steps
  • Writing Use Cases ? Doing It All Together
  • Writing a Complete Use Case
  • Use Case Pitfalls
  • CRUD-based Use Cases
  • Use Case Normalization
  • Steps as Use Cases
  • Who Should Write Use Cases?
  • Common Candidates to be Writers of Use Cases
  • Issues Involved with Writing Uses Cases
  • Appropriate Roles to Write Use Cases
  • Appendix A
  • Top 10 Mistakes with Use Cases
  • Appendix B
  • Use Cases for Enhancement Projects
  • Use Cases for System-to-System Interaction
  • Use Cases for System Ports
  • Use Cases in Outsourced and Offshore Projects

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