What to Decide Before the First Entry

Seven decisions that are cheap now and expensive to change in year three. Making them explicitly is most of what separates a record that lasts from one that does not.

Starting · Reference

Every long record contains decisions made implicitly in the first week and regretted later. Making them deliberately takes twenty minutes.

To try the approach with real entries rather than memory, start with the official resource. The result should remain easy to correct, export and interpret after the immediate details have faded.

1. What counts as a unit

Are you recording blocks of activity, whole days, or sessions against projects?

The broader practice of records management is also covered by The National Archives, which is useful when designing a record that should remain understandable later.

This determines everything downstream and is nearly impossible to change retrospectively.

Write down the definition: a unit begins when X and ends when Y.

2. Rounding

To five, fifteen or thirty minutes, and up, down or nearest.

Pick one and record it. Mixed rounding across years is a drift nobody can untangle later, and it will make two periods incomparable for reasons you cannot reconstruct.

3. What a gap means

Decide now: does a missing day mean nothing happened, or that you did not record?

The two are completely different and indistinguishable later without a convention.

The simplest that works: record a zero-line for a day with nothing, leave genuinely unrecorded days blank, and note the difference in your own documentation.

4. Backfill policy

How long after the fact may an entry be added, and how is it marked?

Something written three days later is an estimate. If it is not marked as one, your record silently mixes observation with recollection.

A single character is enough — a question mark, a flag column — and it preserves the distinction for as long as the record lasts.

5. Where the master copy lives

One location that is authoritative.

Multiple partial records across devices and applications is the commonest way a long record becomes untrustworthy, and it happens gradually.

6. What the categories mean

Write a one-line definition for each, in a file beside the data.

Not for anybody else. For you, in four years, wondering whether "admin" included invoicing.

This single file is what makes a long record comparable against itself, and it takes ten minutes to create.

7. When you will read it

A date in the calendar. Monthly or quarterly, plus an annual read.

A record that is never read stops being maintained, in that order — the maintenance was always sustained by the reading rather than the other way round.

Writing it down

All seven fit on one page, kept beside the data.

Add to it when a decision comes up: how you handled a tool change, when you renamed a category, what a particular gap was.

That page is the thing that makes a ten-year record interpretable. Without it, the older years become data you have but cannot safely compare.

What to check

Have you written any of these down, or are they all implicit?

Could somebody else — or you in five years — read your record correctly using only what is written?

Do you have a rule for gaps and one for backfill?

And is there a date in the calendar when you will next read the thing?

The point

Seven decisions, all cheap now and expensive in year three.

They fit on one page kept beside the data, and that page is what makes a ten-year record interpretable.

Worth adding

Keep the seven decisions on one page beside the data and add to it whenever another comes up.

Without that page the older years become data you have but cannot safely compare.

Additionally

Decide when you will read it, and put the date in the calendar.

A record that is never read stops being maintained, in that order.

Finally

Write the definitions for each category in a file beside the data.

Not for anybody else — for you in four years, wondering whether admin included invoicing.

In summary

Decide the unit, the rounding, what a gap means, the backfill policy, where the master copy lives, what the categories mean, and when you will read it.

Twenty minutes now, expensive in year three.

Last word

The practice this points at is unglamorous: a small daily act, a short weekly correction, an annual read, and a written page of conventions beside the data. None of it is difficult and all of it is easy to skip, which is why most records do not reach the point where they start paying.