The annual checkup with my doctor is always unpleasant, because (a) he makes me get on the scale right away, and (b) he offers no “silver-bullet” quick-n-easy solutions for the inevitable bad news:

“You’ve gained ten pounds this past year, Mr. Yourdon.”

“What?!?” I exclaim, with just the right amount of shock and righteous indignation. “How could that have happened?”

“One ounce at a time,” is the invariable reply.

“Well, what should I do?” I ask innocently.

“Eat less food,” he responds with a frown, as if searching for an answer that would require only two words, instead of three.

“But isn’t there some kind of diet that would knock that weight off in a week or two, just like those television ads? Can’t you give me a simpler solution?”

“Put less food in your mouth,” he says. “What could be simpler?”

Well, he may be right, but it’s not really the kind of advice I wanted to hear. So when it happened again last year (as it has several times over the past couple of decades), I decided it was time to hire a consultant. Not from McKinsey, or PriceWaterhouse, or IBM Global Services … but I thought perhaps a professional nutritionist could offer some suggestions.

And indeed she did: she began by asking for a detailed inventory of my daily food intake. As it turns out, I am boringly consistent about breakfast and lunch, with only a modest tendency for variety at dinner. So I rattled off the list of food items, beginning with the glass of grapefruit juice that I have in the morning.

“Stop right there!” she commanded. “Do you realize that that grapefruit juice represents five pounds a year?”

“Whoa! How could that be?” I asked, genuinely surprised.

“Well, think about it,” she said. “A four ounce glass of grapefruit juice is roughly 50 calories…”

“Yeah?” I shrugged. “So?”

“Well, if you take ten calories, and multiply it by 365 days, you get 3,650 calories, right? And that’s equivalent to one pound of weight. So 50 calories a day, day after day, is five pounds by the end of a year.”

Well, despite her suggestion, I’m not giving up my daily glass of grapefruit juice. It’s a ritual: I simply cannot read The New York Times in the morning unless I have a glass of grapefruit juice in my hand.

Still, it was a sobering realization: a measly 10 calories — which represents about one minute of walking on a treadmill at a moderate pace — adds up to a pound by the end of a year. Who even keeps track of a measly 10 calories? Who cares? And yet, as my doctor keeps pointing out each year when it’s time to get back on the scale, the weight goes on one ounce at a time.

Now think about this in terms of process improvement, productivity improvement, quality improvement, and all those other virtuous things we talk about in the software development field. We’d all love to find a silver-bullet solution — in the form of a new programming language, a new twist on agile development processes, or a new development tool — that would magically increase our productivity by a factor of ten, while reducing the number of defects in our delivered code by a factor of ten. And maybe we’ll find that silver bullet one day — just like maybe we’ll find that miracle diet that will help me knock off ten pounds, so I can enjoy a gluttonous diet of steak, french fries, red wine, and an ice cream sundae for dessert.

But meanwhile, the slow, steady, incremental improvements can pay off impressively over the course of a year — if we can maintain the discipline of doing it, day after day. It’s particularly common in the American culture to expect dramatic results every fiscal quarter, and the notion of accumulating lots of tiny improvements is about as popular as … well, as cutting out that morning glass of grapefruit juice.

And since I am going to have that grapefruit juice every morning, it looks like my only hope is an extra five minutes a day on the treadmill. Well, at least I’ve got my iPod to while away the extra time…