anchor.diff:       +-------+ +-------+ +-------+         |    |{d}         |
        |{s}    | |{s}    | |{s}    |         +--->|Production  |
        |local  | |local  | |local  |              |test results|
  -     |clone  | |clone  | |clone  |              |(artefact)  |
  +     |clone  | |clone  | |clone  |              |(artifact)  |
        |preview| |stage  | |prod.  |              +------------+
        +-------+ +-------+ +-------+ 
   
  
positive.code:                                                 |{d}         |
                                             +--->|Preview     |
                                             |    |test results|
                                             |    |(artefact)  |
                                             |    +------------+
                                             |
                                             |
  
negative.code:                   |                             |{d}         |
                /---+---\                    +--->|Preview     |
                |Emender|                    |    |test results|
                |   -   |                    |    |(artifact)  |
                |Jenkins|                    |    +------------+
                \--+----/                    |
                   | ^                       |
  