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UML: Unified Modelling Language

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What is UML?
UML, short for Unified Modelling Language, is a standardized modelling language that enables developers to specify, visualize, construct and design outcomes of a software system. UML is structured so that it enables scalability, security and robust execution under stressful conditions and the structure must be defined clearly enough so that when an issue occurs, maintenance programmers can quickly find the bug and fix it.
When talking about large enterprise applications, these programs must be designed to work perfectly. A well designed architecture benefits any program and not just large ones. The structure is a way of dealing with complexity, so the advantages of structure, and of modelling and design, compound as the application …show more content…

Rational Unified Process (RUP) is a software engineering process which provides a disciplined approach to assigning tasks and responsibilities within a development organisation. The aim of RUP is to guarantee the production of high quality software that meets the end users’ needs, within a time and budget that was set.
The Rational Unified Process is a guide for how to use the Unified Modelling Language effectively. The UML allows us to visibly communicate requirement, architectures and designs. The UML was originally created by Rational software but is now run by an organisation called Object Management Group (OMG). RUP is supported by tools that automate large parts of the process. These tools are used to create and maintain a wide range of artefacts, particularly models, of the software engineering process such as programming, testing etc. The tools are essential in supporting with the bookkeeping associated with the change management and configuration management that goes with each iteration.
RUP is broken into two dimension, Time and Static Structure of the Process. There are four phases with the time dimension, Inception, Elaboration, Construction and Transition. Each phase can only be concluded when the key goals have been …show more content…

To move onto the next phase, an evaluation has to be carried out on the following
- Actual expenditure versus planned expenditure.
- Depth and breadth of an architectural prototype that had been developed.
- Trustworthiness of the cost/time estimates, priorities and risks.

Elaboration Phase
For the Elaboration Phase, the main aims are to analyse the problem domain, establish a sound architectural foundation, develop the project plan and to eliminate the highest risk elements of the project. Decisions have to be made, mainly architectural decisions with an understanding of the system such as its scope, functionality and performance requirements.
The main outcomes of this phase are –
- A use-case model where all cases have been identified and some of the descriptions have been developed.
- A software architecture description.
- An executable architectural prototype.
To make sure the evaluation of this phase passes and can proceed to the next phase, a number of questions have to be asked –
- Is the vision product established?
- Is the architecture established?
- Have the risk elements of the executable demonstration been addressed and credibly resolved?

Construction

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