9 Rules for Requirements as Means of Communication

Type: Rules

Gist

What are the requirements for? From time to time I run into a project where the business analyst in charge (or requirements manager, or what ever they call him) does not know the answer. These projects do requirements because some governing company rule says they should. To my mind, requirements as all about transferring ideas from one person to another, or one group of people to another group. Here's what a BA should think about concerning communication.

Rules and Notes

R1) Always identify the readers. Make sure you sort out primary and secondary readership. Go for the group that benefits from the requirements NOW, if in doubt.

R2) Don't forget to ask your primary readers how they want to read requirements. Spoken or written prose, pictures, tables? Do they know UML? What's the common language of all your readers? Go check the SOPHIST's material on language and requirements if 'plain natural language' is the answer to the latter question.

R3) Always check if you can reduce the need to write things down by including people in requirement workshops with your stakeholders.

R4) Challenge arguments like 'we need the requirements after the project's finished, for maintenance'. Will there be an organization maintaining the system? Will they use your requirements?
Note: I know this rule hurts. However, I haven't seen a single specification that is still useful years (or even months) after the project's end, if this spec isn't maintained as well.

R5) Don't overestimate your memory. If you will be on a project for several months you yourself will need some aid for remembering that darn detail.

R6) Adjust your requirements style to what you're specifying. Is your system user interface-heavy? Database-strong? Functions? Constraints? Highly interactive? Real-time? Product family?

R7) Think of it: can the team (of designers, programmers, testers, users) be allowed to ask for the information they need, in contrast to you providing them 'one-size-fits-all' requirements.

R8) make sure everybody understands that perfect communication is not possible. The best thing you can do is speak with everybody a lot. The worst thing you can do is write a specification from beginning to end and throw that piece of paper over the fence (also see BUFR)

R9) You don't need requirements at all? You cannot not communicate! (Watzlawick)

Costs, Savings

<Would be great. What does it take to implement those rules? What does it give?>

Side effects

<Is there anything that happend or will happen as one implements the rules? This relates to both wanted and unwanted effects ('unwanted' does not imply 'negative').>

Quotes

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