Originally posted by Scott Ambler:
Agreed.
Unfortunately, the RUP marketing rhetoric tries to connect itself to the UML via the names (both have Unified in them), and the fact that they each sort of originated from Rational (now a subsidiary of IBM). The RUP claims to be "use case driven", although you really want to be requirements driven (see The EUP Best Practices for a discussion). So, there's some pretty good reasons why people seem to comingle use cases into the UML.
- Scott
One of the disciplines of RUP is Business Modeling:
The aim of business modeling is to establish a better understanding and communication channel between business engineering and software engineering. Understanding the business means that software engineers must understand the structure and the dynamics of the target organization (the client), the current problems in the organization and possible improvements. They must also ensure a common understanding of the target organization between customers, end users and developers.
The RUP's business modeling workflow explains how to describe a vision of the organization in which the system will be deployed and how to then use this vision as a basis to outline the process, roles and responsibilities.
Aren't Requirements - functionality, business processes, workflow, org structure, user hierarchy, etc. captured in Business Modeling? It speaks of business use cases and business entities and concepts such as Activity Based Costing, Business Architecture, etc.
The Business Use Cases and other information gathered (org structure, users, workflow etc.) are all inputs to Use Case modeling (the essential/detailed/effective use cases) that provides detailed undestanding of the system to be developed
So when RUP/UP is Use-Case driven, wouldnt it include the entire Business Modeling discipline- Vision, Feasibility analysis, Business Use Case Model Business Architecture, Use Case Model, etc?
My personal viewpoint - RUP by itself is a behemoth; a lone individual trying to conquer RUP may well be trampled underfoot. Since any process needs to be tailored specifically towards a project, an understanding of RUP is required before one can have the confidence to tailor - just as RUP was not built in a day, undestanding RUP cannot happen in a day - it's going to take time and concerted effort of some dedicated folks
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