Related:

• If, when completion of a design is imminent, field dimensions are finally supplied as they actually are - instead of as they were meant to be - it is always simpler to start all over.
  -- Third Law of Revision It is usually impractical to worry beforehand about interferences - if you have none, someone will make one for you....
• The more innocuous the modification appears to be, the further its influence will extend and the more the design will have to be redrawn.
  Fyfe's Second Law of Revisio...
• It is usually impractical to worry beforehand about interferences -- if you have none, someone will make one for you.
  Fyfe's Third Law of Revision - Corollary I...
• Information necessitating a change of design will be conveyed to the designer after and only after the design is complete.
  (Often called the 'Now They Tell Us' Law) Fyfe's First Law of Revisio...
• Start from scratch.
• A complex system that works is invariably found to have evolved from a simple system that works.
  ...A complex system designed from scratch never works and cannot be patched up to make it work....
• In simple cases, presenting one obvious right way versus one obvious wrong way, it is often wiser to choose the wrong way so as to expedite subsequent revision.
  Fyfe's First Law of Revision - Corollary I...
• You are at home when you can scratch were it actually itches and not be anxious that someone will see what you are doing.
• WALL Structure of astounding simplicity. In terms of building and design, you can't get much simpler than a wall.
  Actually, no, I'm wrong, a floor is simpler to build....