Page Comparison

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1.
  1.1.
    1.1.1
      1.1.1.1
    1.1.2
    1.1.3
      1.1.3.1
        1.1.3.1.1
          1.1.3.1.1.1
          1.1.3.1.1.2

+ Was easy to implement.

+ Looks natural form small technologies with multiple splits.

However large - Large technologies which are mostly sequential look bad in this scheme.

...

1
  1.1
    1.1.1
      1.1.1.1
        1.1.1.1.1
          ...
           1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1

New concept

Add letter on split. Increment on sequence.

1.
 2.
  2.A.1
   2.A.1.A.1
   2.A.1.B.1
     2.A.1.B.2
 2.B.1
 2.C.1
   2.C.2
     2.C.3
       2.C.3.A.1
       2.C.3.B.1