When is the technique applicable If gathering requirements for an IT system then inevitably some of the requirements will mean storing data or doing something with data. A logical data model can be a technique for gathering these. It is very useful because it enables a diagram to be drawn up which can be discussed to improve the… Read More »
The previous article How to elicit high level requirements by identifying use cases explained how to identify the scope of the solution and how to define use cases. This article explains what questions to ask and how to document solution requirements in more detail using UML (Unified Modelling Language). A great benefit of this technique is that it… Read More »
This article is to provide you with techniques for eliciting requirements by providing step by step instructions to produce a use case model for an IT system. A company intranet will be used throughout to provide examples. Use cases were first used by Ivar Jacobson to describe an amount of work to be done. Use cases break down… Read More »
In this article I interviewed Andy Barnett who is a UML mentor and asked him questions about his background, the benefits of UML, when to use it along with BPMN and user stories, challenges with implementing UML and what is involved with being trained in UML. I know Andy from him being my mentor for around 12 months… Read More »
For the purposes of this article the assumption is that estimations and planning are required for gathering system requirements. However it could equally be adapted for business requirements and other areas of the project development lifecycle. A use case model describes: System boundaries are Systems in scope for the project Use cases are The things the system in… Read More »
A entity relationship or class diagram can be used to resolve the problem when stakeholders are interchangeably using different words to mean the same thing. For the purposes of this article a conceptual model of a class diagram has been used. A conceptual model is at class level. A class is a group of data with similar characteristics.… Read More »