• Continue to read Chapter 8 (skip 7)

• build many different models; choose best
• simulate, using program: use loops

Build Dog Lot.                     x    |
Put fence next to wall.         ********|
Have one roll of fencing.       *       |
                                *       |
                             y  *       |
                                *       |
                                *       |
                                *       |
                                ********|
                                   x    |

• Economy
• Policy (e.g. birth control)
• Marketing
• Camera Lenses
• UNC CS Walkthrough
• Virtual Reality

• Cost of actual fabrication
• Yield

• Logic
• Layout
• Circuit
• Process

• SimCity
• Flight Simulator
• Can be real training tools

• Robustness
• Testing
• Documentation
• Customer Support
• Training
• Follow-on products

• Defining the Product
• Developing the Program Specification
• Designing the System Structure
• Coding the System (small part!)
• Testing the Code
• Revision
• Documentation
• Delivery and Training
• Maintenance and Upgrade

• Specification languages

• Testing
• Can only show presence, not absence of bugs

• Proofs
  • Formal definition of specs
  • Formal definition languages
• Very hard

• Comments on Comments
  • Program Header
  • Block Header
  • Line Comments
  • Procedure Specs
  • Variable Descriptions
• Manuals
  • User Manual
  • Software Logic/Technical Manual

• The "Committee"
• Communication
• Interaction
  • training
• Creator Independence

• Chief Programmer Team