1. Spaces
   1. Problem
   2. Solution
2. Problems
   1. Use case
   2. Functional
   3. Performance
   4. Quality
      1. Security
      2. Information Assurance
   5. Testability
   6. Manufactureability
3. Defining a Problem Space
   1. What is the problem within the space
   2. What entity is in the space
      1. What problem conditions are posed
      2. Who has responsibility for a condition
   3. Models
      1. Use Case
      2. Class
      3. Collaboration
      4. Context
   4. Documents
      1. Concept of Operations
      2. Task List
         1. Tasks
         2. Measures
         3. Criteria
4. Problem to Solution Traceability
   1. Context Model
      1. Internal Structure
      2. Class diagram
   2. Solution X solves Problem Y
   3. Interaction
   4. Condition
   5. Object
5. Defining a Solution Space
   1. Requirements
      1. Enterprise
      2. System
      3. System Element
      4. Software
      5. Hardware
      6. Infrastructure
   2. Architecture
      1. Enterprise
      2. System
      3. System Element
      4. Software
      5. Hardware
      6. Infrastructure
   3. Design
      1. Enterprise
      2. System
      3. System Element
      4. Software
      5. Hardware
      6. Infrastructure
   4. Implementation
      1. Enterprise
      2. System
      3. System Element
      4. Software
      5. Hardware
      6. Infrastructure
6. Models
   1. Model Elements
      1. Viewpoint
      2. View
      3. Problem Space Packages
      4. Solution Space Packages
7. Verification
   1. Produce objective evidence that the problem is solved by the system
   2. Test Component
      1. Owns responsibility for an condition
         1. Observing
         2. Producing