Backward chaining

Technodiversity uses a special code for audio-visuals:

 M_       like method

10-       start of the sub-process

-23       end of the sub-process

 

The numbers point to the functiogram:

Example: Harvester

M_10-23

 

-1        Ending with full tree

 

-11      full tree in the stand

10-11       motor-manual felling with chainsaw (film #2)

10-11       motor-manual felling with chainsaw - coniferous trees (film #6)

 

-21      full tree on the trail

10-21       mechanized felling with a feller – coniferous trees (film #13)

11-21       pre-skidding of full trees with a cable skidder - coniferous trees (film #5)

11-21       pre-skidding of full trees - broadleaved trees (film #7)

11-21       pre-skidding of full trees with a cable skidder – broadleaved trees (film #11)

 

-31      full tree on the road

11-31       pre-skidding and skidding of full trees with a cable skidder – broadleaved trees (film #12)

11-31       pre-skidding and skidding of full trees with a yarder – broadleaved trees (film #14)

11-31       pre-skidding and skidding of full trees with a yarder – coniferous trees (film #15)

21-31       mechanized skidding of full trees with a grapple skidder – coniferous trees (film #21)

21-31       skidding of full trees with a cable skidder – broadleaved trees (film #42)

 

-2        Ending with tree length

 

-12      tree length in the stand

10-12       motor-manual harvesting of tree lengths -broadleaved trees (film #3)

11-12       motor-manual delimbing of full trees – coniferous trees (film #44)

 

-22      tree length on the trail

10-22       mechanized harvesting of tree lengths – coniferous trees (film #19)

 

-32      tree length on the road

12-32       pre-skidding and skidding of tree lengths with a yarder – broadleaved tree lengths (film #16)

12-32       pre-skidding and skidding of tree lengths with a yarder – coniferous tree lengths (film #17)

22-32       mechanized forwarding of tree lengths with a farm tractor and a trailer – broadleaved tree lengths (film #24)

22-32       skidding of tree lengths with a clam-bunk skidder – broadleaved tree lengths (film #39)

22-32       skidding of tree lengths with a cable skidder – broadleaved tree lengths (film #43)

31-32       motor-manual delimbing of full trees with a chainsaw at the forest road – broadleaved trees (film #35)

 

-3        Ending with log

 

-13      log in the stand

10-13       motor-manual harvesting of logs - broadleaved trees (film #4)

 

-23      log on the trail

10-23       mechanized harvesting of logs - broadleaved trees (film #1)

10-23       mechanized harvesting of logs – coniferous trees (film #27)

13-23   pre-skidding of logs with a cable skidder – broadleaved logs (film #20)

13-23       pre-skidding of logs with a farm tractor equipped with a winch – broadleaved logs (film #41)

13-23       pre-skidding of logs with animals – broadleaved logs (film #45)

21-23       mechanized processing on the trail – broadleaved trees (film #8)

21-23       mechanized processing on the trail – coniferous trees (film #9)

21-23       mechanized processing of full trees on the trail – broadleaved and coniferous trees (film #34)

22-23       mechanized processing on the trail – broadleaved tree lengths (film #10)

 

-33      log on the road

10-33       mechanized felling, skidding and processing at the forest road with a harskidder – broadleaved and coniferous trees (film #33)

13-33       pre-skidding and skidding of logs with a yarder – coniferous logs (film #18)

13-33       pre-skidding and skidding of logs with a cable skidder – broadleaved logs (film #38)

13-33       pre-skidding and skidding of logs with a farm tractor equipped with a winch – broadleaved logs (film #40)

13-33       pre-skidding and skidding of logs with a yarder – broadleaved logs (film #46)

23-33       mechanized forwarding of logs with a winch-assisted forwarder – coniferous logs (film #22)

23-33       mechanized forwarding of logs with a forwarder – broadleaved logs (film #23)

23-33       mechanized forwarding of logs with a forwarder – coniferous logs (film #31)

23-33       mechanized forwarding of logs with a farm tractor and trailer – broadleaved logs (film #37)

31-33       mechanized processing on the forest road – coniferous trees (film #25)

31-33       mechanized processing on the forest road – broadleaved trees (film #26)

31-33       mechanized processing on the forest road with processor tower yarder – coniferous trees (film #28)

32-33       mechanized processing on the forest road with processor tower yarder – coniferous tree lengths (film #29)

32-33       motor-manual cross-cutting of tree lengths with a chainsaw at the forest road – broadleaved tree lengths (film #36)

32-33       mechanized processing of tree lengths at the forest road – coniferaous tree lengths (film #47)

 

-4        Ending with chips

 

-34      chips on the road

31-34       mechanized chipping of full trees on the forest road – broadleaved and coniferous trees (film #30)

33-34       mechanized chipping of logs at the forest road – broadleaved logs (film #32)