The needs to improve the time to market of a quality product and adapt to a changing business environment are driving organizations to adopt agile practices in order to be competitive in the marketplace. However, a project team is bound to face difficulties if it is not trained on the fundamentals of agile. Read on to learn how to design scenarios for agile stories using a structured framework.
Lisa Crispin writes that you need to understand the purpose of a user story or feature. Start with the "why." You can worry later about the "how." The customers get to decide on the business value to be delivered. They generally aren't qualified to dictate the technical implementation of that functionality. It's up to the technical team to decide the best way to deliver the desired feature through the software.
Could it be that not every set of business requirements has the customer's best interest in mind? Karl Wiegers had always believed that implemented software functionality should enable users to accomplish their goals and help the business achieve its objectives. But a recent experience with a less-than-helpful parking meter system suggested to him that conflicts sometimes might exist between business and user requirements.
When deciding how a user's task is to be supported in our software, we often look at possible design solutions and select one that's best for the product and the user. As the project deadline approaches, however, we might choose to dismiss some features outright. In this column, Jeff Patton suggests we try keeping more features by adjusting their scale.
When we communicate, the words sound familiar so we think we understand each other. But understanding fizzles when we attribute different meanings to the words we use. In this column, Naomi Karten illustrates how differences in the way departments and companies define their terms can cause confusion, flawed conclusions, and faulty decisions. Naomi asks us to question the meanings of terms before starting a project to ensure that we understand what's called for.
Ambiguity, false assumptions, theories, and red herrings. These basic elements of a good mystery story are also encountered in software requirements gathering. And just as the detective has his bag of tricks for solving the mystery, you can learn a few things about uncovering elusive requirements in this column from Becky Winant.
This is the second in a series of articles written to a) introduce you to the most important diagrams used in object-oriented development (use case diagrams, sequence diagrams, class diagrams, and state-transition diagrams); b) describe the UML notation used for these diagrams; and c) give you as a tester a set of practical questions you can ask to evaluate the quality of these object-oriented diagrams.