Managing Consistency between Textual Requirements, Abstract Interactions and Essential Use Cases

Consistency checking needs to be done from the earliest phase of requirements capture as requirements captured by requirement engineers are often vague, error-prone and inconsistent with users´ needs. To improve such consistency checking we have applied a traceability approach with visualization capability. We have embedded this into a light-weight automated tracing tool in order to allow users to capture their requirements and generate Essential Use Case models of these requirements automatically. Our tool supports inconsistency checking between textual requirements, abstract interactions that derive from the text and Essential Use Case models. A preliminary evaluation has been conducted with target end users and the tool usefulness and ease of use are evaluated. We describe our motivation for this research, our prototype tool and results of our evaluation.