SYSE.11:3 - Forces

• A small increment shortens feedback, while its use can still depend on relations outside the changed parts.
• Software and descriptions may change quickly; Work involving, for example, procurement, fabrication, access, integration, and physical observations often changes more slowly.
• Each contributor needs a local completion condition, but no local completion proves usability of the containing System.
• Some changes are easy to reverse; others alter scarce equipment, permits, safety conditions, or independently governed Systems.
• Automated tools can help Agents assemble records, compare configurations, and run checks rapidly. Establish the governed use, acceptable loss, and authority boundary separately.
• The receiving use needs a supported System configuration while engineers preserve alternatives for future change.