In About Face 2.0, Alan Cooper describes the elastic user as an ill-defined user who’s characteristics change to suit the needs of the developer – sometimes an expert and sometimes a novice. However, some of the otherwise good techniques for managing actors and use cases exacerbate this problem instead of alleviating it. How should we manage use cases while still getting the benefits of Cooper’s insight?
Tag Archives: personas
Actor Hierarchies And Then Some
Actor Hierarchies give us an overview of the people who will interact with the system. We can extend this model to provide a visual indication of how use cases are distributed through the organization. Further, we can leverage a hierarchy to show how use cases are rolled out to the users – a targeted communication for our stakeholders.
Requirements Gathering – Interviewing the Right People
How do we find out what someone wants when they don’t know what they want or what they can have? One of the best techniques for gathering requirements is to interview users. But which users?
Imagine aliens came to the planet and offered to solve our gasoline problem. How could we tell them what we wanted? We might say we wanted cars that run on clean renewable energy. The aliens might leave thinking “Oh well, I guess they didn’t want faster-than-light travel.”
Persona Grata
Different people approach the same goal very differently. When we don’t truly identify our users, we end up with software that dehumanizes, waters-down, and otherwise fails to succeed at anything more than grudgingly tolerated functionality. Even worse, we may ignore the needs of our key demographic, resulting in software failure. When we use personas instead of generic use cases, we can avoid both the misery of a failed product and mediocrity of marginal success.
Posted in Interaction design, Requirements, Requirements Models, Software development, Software requirements specification, UX, Use Cases
Tagged alan cooper, constraints, FRS, Interaction design, kano, karl wiegers, managing data, MRD, non-functional requirements, persona, personas, PRD, prioritizing software requirements, requirements prioritization, scenario, software requirements, SRS, structured requirements, Use Cases
4 Comments
Latest Articles
Comments on all Articles
