@Sprout :
In response to volume being the determinant of the type/nature of an OB versus the ID'd sequence being the determinant of type/nature of an OB... you said regarding volume...
There is no doubt a price bar can (or won't) morph into a
different final eob characterization. If morphed, explanation is merely a recital of logic of the morphing "steps". The fact is, looking at a hindsight chart there is no "when" associated. You seem fixated on intrabar morphing. The example being discussed, all that is "known" is that between bar start(open) and bar end(close) morphing steps occurred, period.
Without "knowing" the state of both independent and dependent variables AT THE MOMENT, this OB example might have been a SYM until, say, 90% of the way to eob. We "don't know." If the example is a 5-min bar, 90% is 270 seconds of 300. Now if you want to think you could do proper MADA, and make multiple (profitable?) trades based on intrabar movement, I say you need to rethink that idea.
You are correct. In a hindsight chart, it's all EOB. However performing MADA is distinct from waiting for EOB. There are certain market environments that call for this - mainly when volatility is high and one goes to a faster timescale to discern. It also requires a trading setup that is more than a 5m chart. Granted, (at least for me at my level of development) it's a challenging scenario to do with any lengthy duration. Going to a faster timescale it like 'unsquishing' internals.
More important, if/when both variables are known, what indicates changing the OB type/nature from a T1/P2 to being P2/T2P? In your analysis, timing is beyond everything, and signals/triggers are perceptible for as long as literally, you do not blink. Being tradable other than automated would be somewhat off topic with that foundation.
Perhaps I miscommunicated. This method focuses on events not timing. Each price case is a granular event. There is a timing component for hold/reverse trading in 'carving' turns. Carving turns is an overlay on PVT, SCT, RDBMS and SSR.
My comments about the OB were mainly directed to PP4.
In the T1/P2 case there is no EE. The OB is ID'd P2. Next measurable becomes P2, T2P, or P1.
In a P2/TP2 case there is an EE. The OB is marked PP5. Next measurable becomes P1, mandated. I want to point out an obvious:
T1/P2 progresses an existing sequence.
P2/T2P ends an existing sequence... Welcome to the overlap zone on a
segment scale. A trend, a segment of price movement, an existing sequence HAS ended, a new sequence, a new segment IS about to begin.
Your logic is sound.
So is it the ID'd sequence, or the volume that determines the type/nature of an OB? Intrabar morphing is merely a logical progression. OB is a lock-in, possible through all morphing logic paths at ANY TIME during bar formation. While working intrabar, be sure to include the possibility of a one-bar complete sequence(good luck with that). IMO, the intrabar analysis as you are doing, is straying from the relational database, and is creating a false sense of being trade-able for profit. You have forgotten at least one critical question... where are you (within the next bigger container)? The sequence is the sequence until/unless it isn't.
I respect your pov, however, there is more to OB's than what you have distinguished. I'll follow up with another post.