I was asked the following question from a friend of mine: “I see a propensity to copy requirements from the Customer Specification to various levels of the requirement hierarchy in order to link between a Customer requirement written as implementation … Read More
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How Well Are Your Requirements Connected?
On our Ask the Experts page , the following question was asked: “I am a systems engineer currently involved in a complex aerospace system development. While I was searching for some related topics on requirements management, your interesting website was … Read More
Avoid using “be able to” and “be capable of”
A common issue that frequently comes up is the use of “The system shall be capable of…..” or “The system shall be able to….” vs. “The system shall …..” People often ask: Is there a distinction? What is wrong with … Read More
Avoiding Implementation
We were recently asked the following question: “How do you determine that a requirement is talking about “how” not “what”? It is always a problem that bothers us during requirement definition. As requirement engineers, we have less technical knowledge, so … Read More
Do we really need all these requirements?
We are often asked this question. It is common to see cases where projects over specify their requirements for a product. In one of our classes, we were told that one government organization had defined over 4,000 requirements for a … Read More
