I googled "Jehovah" and "field service report" and found the following article in the MBA Jungle magazine. It's interesting to see how the writer admires the JW's record keeping.
MBA Jungle magazine, March 15, 2004
"Business Lessons from Jehovah's Witnesses: God's Sales Team "
By Dan McGinn
Their product: salvation. Their mission: conversion. Why Jehovah's Witnesses are the world's scrappiest, most dedicated sales force -- and what you can learn from them.
PLAN YOUR ATTACK--AND LEAVE A PAPER TRAIL
If you’ve ever observed Witnesses wandering from block to block, you’d think they’re no more organized than a Girl Scouts troop pushing Thin Mints. You’d be wrong. As Collier and his wife Susan begin an afternoon’s work, they consult a laminated map showing Territory No. 39--three blocks of well-maintained homes in this Boston neighborhood. The map shows that this area was visited by Jehovah’s Witnesses the previous December, May, and August (the group tries to cover most neighborhoods four times a year). The Witnesses have proprietary maps like this for just about every neighborhood in the country. Their records contain details that census takers wouldn’t dream of noting and that marketers wouldn’t know how to compile unless they wore out lots of shoe leather themselves. The Witnesses track homes where residents work the late shift, so the pioneers don’t wake them up by visiting too early. On their maps, they mark the homes where residents seemed receptive during previous visits, as well as those where people reacted so negatively that the Witnesses should avoid calling on them in the future. Although the federal government only recently instituted a Do Not Call registry, the Jehovah’s Witnesses have kept one of their own for years.
As the Colliers progress down the block, they fill in a "House-to-House Record" card, noting the gender, age, and name of everyone who answers the door. The goal is to turn today’s "cold call" into tomorrow’s "warm call": "Hi, Jason, we spoke a few months ago about the Bible and your search for a new job. Has God helped you with that?"
Back at Kingdom Hall, the Witnesses’ house of worship, each pioneer fills out monthly field service reports, detailing how many brochures they distributed, how many hours they spent visiting homes, and how many repeat visits they made to people who seemed interested.
Good record-keeping is central to the Jehovah’s Witnesses goals--and it’s how the group charts its progress. At the group’s world headquarters in Brooklyn, statisticians can tell you its U.S. members spent exactly 184,842,031 hours preaching in 2002, and that they conducted 463,249 Bible studies. As a supervisor, Collier uses the documents the same way a retail manager uses a daily sales report. "I might notice that [one pioneer] is putting out a lot of literature, but making very few return visits," Collier says. "That signals to me that they need some help learning how to go back and cultivate the interest they’ve created."