Understanding and documenting market requirements are among the most important tasks that a product manager performs.

Unfortunately, many product managers do not perform the tasks well, causing the following problems:

  • A development staff that doesn't know what to build

  • Products that don't solve real problems in the marketplace

  • Product designs that lack creativity and innovation

If you want your company's products to fail for these reasons, there are a number of guidelines to keep in mind. These are the top five mistakes that product managers can make to ensure their products fail.

Mistake 1. Focus on the how instead of the what

To constrain your product designers and developers so that they cannot devise innovative solutions to prospective customers' problems, specify the how instead of the what in requirements documents.

If you specify how to solve a problem, instead of what a product must do to solve a problem, then you're doing design, not requirements.

For example, if your requirements document tells the developers of a software application what programming language they must use, you (a) constrain them in delivering the best solution in the least amount of time and (b) fail to describe the real requirement, the underlying reason that using a particular programming language might be advisable.

Mistake 2. Don't ask ‘why?'

Say a prospective customer tells you that the software product it wants you to build must provide users a means of registering and logging into the system. An effective way to neglect important privacy and security requirements would be to accept this specification at face value.

But ask “why?” and you may discover precisely which problems the prospective customer is trying to avoid.

You may find, for example, that as long as you can keep outside intruders from accessing certain information using the system, the customer will be happy, whether or not you use registration and login. Or you may find that implementing the precise features that the customer requests will fail to solve the underlying problem.

Mistake 3. Write all requirements up front and freeze them

It would be nice if you could define all of the requirements for a product up front and freeze them. Actually, you can. However, doing so will virtually guarantee that the product will not satisfy customers.

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ABOUT THE AUTHOR

Roger L. Cauvin is founder and principal consultant of Cauvin, Inc. (www.cauvin-inc.com). Reach him via roger@cauvin.org or his product management blog (cauvin.blogspot.com).