Tanager

Sequence Diagram Specification

Version 2.1 – Elaboration Phase 2

Revision History

Date	Version	Description	Author
15 Aug, 2006	1.0 – Elaboration Phase 1	Initial Revision. Added Power On main success scenario diagram.	Bob Lavey
14 Sep, 2006	1.1 – Elaboration Phase 1	Added Power Off main success scenario diagram.	Bob Lavey
17 Oct, 2006	1.2 – Elaboration Phase 2	Added Download a Song main success scenario	Bob Lavey
03 Dec, 2006	2.0 – Elaboration Phase 2	Added Play Music and Pause Music scenario diagrams	Bob Lavey
10 Jan, 2007	2.1 – Elaboration Phase 2	Updated based on comments from Dr. Leavens’ review.	Bob Lavey

Table of Contents

1. Introduction. 4

1.1. Purpose. 4

1.2. Scope. 4

1.3. Definitions, Acronyms, and Abbreviations. 4

1.4. References. 4

1.5. Overview.. 4

2. Sequence Diagrams. 5

2.1. Power On. 5

2.2. Power Off. 7

2.3. Select Random Playlist 7

2.4. Play Music. 7

2.4.1. Begin Playing Music. 7

2.4.2. Start Song. 9

2.4.3. Song Starts Playing. 10

2.4.4. Update Playing Song. 12

2.4.5. Playing Song Ends. 14

2.5. Pause Music. 16

2.5.1. Begin Pausing Music. 16

2.5.2. Song is Paused. 18

2.6. Stop Music. 20

2.7. Skip to the Next Song. 20

2.8. Restart the Current Song. 20

2.9. Skip to the Previous Song. 20

2.10. Volume Adjustments. 20

2.11. Download a Song. 20

2.12. Delete a Song. 20

2.13. View Playlist 20

Sequence Diagram Specification

1. Introduction

1.1. Purpose

This document provides the detailed Sequence Diagrams for the Tanager project. Sequence Diagrams will be generated for all main success scenarios, frequently-used scenarios, and complex scenarios. The section numbering for the Sequence Diagrams will match that used in the Tanager System Sequence Diagram Specification and the Tanager Use Case Specification. This will make it easier for the reader to match the Sequence Diagrams with the SSDs and the Use Cases.