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The Lean Startup - Eric Ries [59]

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them exhibited each of the behaviors we care about. In the IMVU example, we saw four behaviors: downloading the product, logging into the product from one’s computer, engaging in a chat with other customers, and upgrading to the paid version of the product. In other words, the report deals with people and their actions, which are far more useful than piles of data points. For example, think about how hard it would have been to tell if IMVU was being successful if we had reported only on the total number of person-to-person conversations. Let’s say we have 10,000 conversations in a period. Is that good? Is that one person being very, very social, or is it 10,000 people each trying the product one time and then giving up? There’s no way to know without creating a more detailed report.

As the gross numbers get larger, accessibility becomes more and more important. It is hard to visualize what it means if the number of website hits goes down from 250,000 in one month to 200,000 the next month, but most people understand immediately what it means to lose 50,000 customers. That’s practically a whole stadium full of people who are abandoning the product.

Accessibility also refers to widespread access to the reports. Grockit did this especially well. Every day their system automatically generated a document containing the latest data for every single one of their split-test experiments and other leap-of-faith metrics. This document was mailed to every employee of the company: they all always had a fresh copy in their e-mail in-boxes. The reports were well laid out and easy to read, with each experiment and its results explained in plain English.

Another way to make reports accessible is to use a technique we developed at IMVU. Instead of housing the analytics or data in a separate system, our reporting data and its infrastructure were considered part of the product itself and were owned by the product development team. The reports were available on our website, accessible to anyone with an employee account.

Each employee could log in to the system at any time, choose from a list of all current and past experiments, and see a simple one-page summary of the results. Over time, those one-page summaries became the de facto standard for settling product arguments throughout the organization. When people needed evidence to support something they had learned, they would bring a printout with them to the relevant meeting, confident that everyone they showed it to would understand its meaning.


Auditable

When informed that their pet project is a failure, most of us are tempted to blame the messenger, the data, the manager, the gods, or anything else we can think of. That’s why the third A of good metrics, “auditable,” is so essential. We must ensure that the data is credible to employees.

The employees at IMVU would brandish one-page reports to demonstrate what they had learned to settle arguments, but the process often wasn’t so smooth. Most of the time, when a manager, developer, or team was confronted with results that would kill a pet project, the loser of the argument would challenge the veracity of the data.

Such challenges are more common than most managers would admit, and unfortunately, most data reporting systems are not designed to answer them successfully. Sometimes this is the result of a well-intentioned but misplaced desire to protect the privacy of customers. More often, the lack of such supporting documentation is simply a matter of neglect. Most data reporting systems are not built by product development teams, whose job is to prioritize and build product features. They are built by business managers and analysts. Managers who must use these systems can only check to see if the reports are mutually consistent. They all too often lack a way to test if the data is consistent with reality.

The solution? First, remember that “Metrics are people, too.” We need to be able to test the data by hand, in the messy real world, by talking to customers. This is the only way to be able to check if the reports contain true facts.

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