Define the intended activity precisely
Traditional entries may distinguish building work, disturbing soil, work in a direction and repairing walls. Calling all of them renovation can select the wrong subject. Specify the action, scope and time scale, then locate the closest historical activity term and explain how it relates to the modern situation. A date without a purpose cannot yield a complete suitability judgment. A rule about a day also cannot be freely extended to every hour within it.
Check calendar inputs and additional conditions separately
Basic inputs include local date and time, stem-branch year, month, day and hour, and year- and month-boundary conventions. Directional entries additionally need a facing axis and north reference; natal entries need the relevant birth data. Not every rule uses every field. Keep matched entries and unassessed scope after lookup. Missing birth time or facing leaves dependent layers unknown. The absence of an opposing entry may simply reflect incomplete data and should not be displayed as an all-clear.
Compare two days in three explicit columns
For a learning exercise, compare a Yin day and a Shen day in the same Yin month. Fix the activity and create three columns: calendar inputs, officer label and relevant source passage. The sequence gives Establish for the former and Break for the latter, which can be checked manually. Then return to the chosen text to see how that activity treats the labels and any concurrent conditions. Assigning plus ten and minus ten is unjustified: the sequence itself provides no such weights.
Explain conflicts instead of hiding them in a score
The suitability section of Xieji Bianfang Shu discusses choices when symbolic markers coincide, showing that interpretations depend on combinations and activities. List supporting, opposing and unresolved grounds, and state the conflict rule used rather than inventing an undocumented universal score. Traditional preferences may remain personal cultural choices, while weather, venue, participants and safety determine practical feasibility. Reproducing a calculation establishes procedural consistency, not proof of a future outcome.
Sources and further reading
These sources help clarify the concepts and their origins. Explaining a traditional term does not establish that it can predict outcomes.