Step 3--Observe and Record Facts
Step 3 is to observe and record facts. The analyst should follow the plans
made in step 2 and gather as many facts as possible. Some tiny facts need
to be magnified before they can be recognized. The analyst should get a
magnifier and use it regularly. He should record facts by writing them
down and taking pictures, not relying on memory. Also, pictures record
visible facts that may have been missed and make it possible to go back
and continue gathering facts even after the parts are gone.