Real RUP Omaha SPIN July 20, 2004

1
Real RUPOmaha SPINJuly 20, 2004
David Kohrell, MA, MSFP, PMP
2
Outline

• RUP Overview
• 8 step use case process
• Exercise

3
RUP
4
Focus

• Requirements and business model are the
  disciplines addressed in REAL RUP
• Inception and Elaboration are the 2 phases of
  heavy lifting

5
Terms

• Actors
• Goals
• Use Case
• Basic Flow
• Alternate Flow
• Business Rules
• Special Requirements
• Pre and Post Conditions

6
8 Step Process Overview

• Steps following the sequence of tasks to write a
  use case narrative form.
• Some steps may be done concurrently in a group
  setting e.g. Step 6 and 7.
• Steps can be used to understand what is as well
  as what can be.

7
Step 1 Actors and Goals

• Have all actors and their goals been identified?
• Which actors can be generalized (combined)?
• Which goals are potential use cases?

8
Step 2 Develop An Outline Of Use Case(s)

• For goals identify ones that are potential UC.
• What are the pieces?
• For each outline level, what are key data?
• Outline all use cases.
• Prioritize the use case flows.
• Decide on final use case list (for initial pass).

9
Step 3 Brief Description
What are two to three sentences that describe all
actors and basic flow? Generate content first,
worry about wordsmithing later.
10
Step 4 Basic Flow

• What event starts the use case?
• How does the use case end?
• How does the use case repeat?
• What is the happy path?
• There is one and only one basic flow.

11
Step 5 Alternate Flow

• Are there optional situations in the use case?
• What may go wrong? What may not happen?
• What kind of resources can be blocked?
• Which alternate flows are special requirements?
• (apply to this use case only) e.g.
  non-functional.

12
Step 7 Pre and Post Conditions

• What was the previous state?
• What happens once the use case is done?

13
Step 8 Business Rules

• Review business rules and glossary notes recorded
  and cataloged.
• What items have been noted for the glossary or as
  global business rules?
• Who has the most recent and accurate source
  document?
• Where is it located?

14
Exercise5 minutes
List 4 5 system or people actors in a current
systems project and share at your table
15
Wrap Up
Closing questions, comments and thoughts