1 1 0 0 0 0 0 0 1 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 0 0 645000000 1 32 1024 768 3298000000 0 2653000000 0 645000000 10.000000 1.000000 2 4478 65 1 22050 0 49 0 Step 3: Construct Use-Case Model Diagram 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 1 645000000 1247000000 1 32 1024 768 3298000000 645000000 2051000000 645000000 1247000000 10.000000 1.000000 2 4478 65 1 22050 0 49 1 Sample High-Level Version of a Use-Case Narrative 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 2 1247000000 1583000000 1 32 1024 768 3298000000 1247000000 1715000000 1247000000 1583000000 10.000000 1.000000 2 4478 65 1 22050 0 49 2 Sample Expanded Version of a Use-Case Narrative 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 3 1583000000 1863000000 1 32 1024 768 3298000000 1583000000 1435000000 1583000000 1863000000 10.000000 1.000000 2 4478 65 1 22050 0 49 3 Sample Expanded Version of a Use-Case Narrative (cont) 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 4 1863000000 2272000000 1 32 1024 768 3298000000 1863000000 1026000000 1863000000 2272000000 10.000000 1.000000 2 4478 65 1 22050 0 49 4 Sample Expanded Version of a Use-Case Narrative (cont) 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 5 2272000000 2523000000 1 32 1024 768 3298000000 2272000000 775000000 2272000000 2523000000 10.000000 1.000000 2 4478 65 1 22050 0 49 5 Use Cases and Project Management 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 6 2523000000 2910000000 1 32 1024 768 3298000000 2523000000 388000000 2523000000 2910000000 10.000000 1.000000 2 4478 65 1 22050 0 49 6 Use-Case Ranking and Priority Matrix 1 C:\Documents and Settings\james\My Documents\millerjwcom\dom\gbis722online\week3\Chap07bSummary\Chap07bSummary.avi 0 7 2910000000 3297000000 1 32 1024 768 3298000000 2910000000 1000000 2910000000 3297000000 10.000000 1.000000 2 4478 65 1 22050 0 49 7 Sample Use-Case Dependency Diagram 1 0 Step 3: Construct Use-Case Model Diagram 1 0 645000000 Sample High-Level Version of a Use-Case Narrative 1 1 1247000000 Sample Expanded Version of a Use-Case Narrative 1 2 1583000000 Sample Expanded Version of a Use-Case Narrative (cont) 1 3 1863000000 Sample Expanded Version of a Use-Case Narrative (cont) 1 4 2272000000 Use Cases and Project Management 1 5 2523000000 Use-Case Ranking and Priority Matrix 1 6 2910000000 Sample Use-Case Dependency Diagram 1 7 32 0000 Teaching Notes Note that the use cases have been grouped into business 215000000 sub-systems. This is key to defining your development strategy – which use cases will 430000000 be developed first and by whom. 645000000 Teaching Notes Author – the persons who wrote the use case and provide a 682620000 point of contact for anyone requiring additional information. 720240000 Date – the date the use case was last modified. Version – the current version of 757860000 the use case. Use-case name – the use-case name should represent the goal 795480000 that the use case is trying to accomplish. Should begin with a verb. 833100000 Use-case type – Business requirements use cases provide a general understanding of the 870720000 problem domain and scope but don’t include detail to communicate to developers what 908340000 the system should do. Use-case ID – A unique identifier for the use case. 945960000 Priority – The priority communicates the importance of the use case (high, medium, or 983580000 low). Source – The source defines the entity that triggered the 1021200000 creation of the use case. Primary business actor – The stakeholder that primarily 1058820000 benefits from the execution of the use case. Other participating actors – 1096440000 Other actors that participate in the use case. Interested stakeholders – A 1134060000 person (other than the actor) who has a vested interest in the goal of the use case. 1171680000 Description – A short summary description of the purpose of the use case and its activities 1209300000 . 1247000000 Teaching Notes Precondition – A constraint on the state of the system before 1415000000 the use case can be executed. Trigger – The event that initiates the use case. 1583000000 Teaching Notes Typical course of events – The normal sequence of activities 1723000000 performed by the actor(s) and the system to satisfy the goal of the use case. 1863000000 Teaching Notes Alternate courses – The behaviors of the use case if an 1914120000 exception or variation to the typical course occurs. Conclusion – When the use case 1965240000 successfully ends. Postcondition – A constraint on the state of the system after 2016360000 the use case has successfully executed. Business rules – Policies and 2067480000 procedures of the business that the system must abide by. Implementation constraints and 2118600000 specifications – Any nonfunctional requirements that may impact the realization of 2169720000 the use case. Assumptions – Assumptions made by the author. 2220840000 Open issues – Issues that need to be resolved before the use case can be finalized. 2272000000 Teaching Notes You can relate this to the concept of timeboxing discussed 2397500000 in chapter 5. 2523000000 Teaching Notes A sample matrix is shown on the next slide. 2910000000 No additional notes.