If the sequence characteristic of the waterfall model implied a difficulty in reverting to phases that had been deemed as completed, with the UML structure, new phases can simply be added into the model and treated in connection to the phases that are actually impacted and to which these new phases relate to.
One of the disadvantages of UML is that the entire modeling process is, in fact, just an auxiliary activity of the actual development phase that will eventually create the finite product. In that sense, the development company needs to be a fairly large organization, able to manage the diagrams involved in the modeling process and ensure this activity despite the fact that it only makes a marginal contribution to the final development process.
Another disadvantage is the fact that the semantics used in UML and, from a larger perspective, the necessary language used to connect the different elements in the diagrams, is often limited and either does not reflect all the conditions or it does not convey the actual sense or status that needs to be included in the model. With this fact, confusions may actually arise in the development phase as to what the original sense and connection was meant to be.
Finally, some argue that the XML is too costly, with more resources being needed for training purposes, as well as for the implementation of the system in the company that decides to use such an approach. Other resources have been previously mentioned and include the fact that separate human resources may be needed to manage the diagrams.
SECTION4: Prototyping
With prototyping, the developer provides intermediary products to the user, referred to as prototypes. These intermediary products have some of the characteristics and functionality of the final product, but have not been entirely completed. There are two main advantages that one can identify with prototyping. The first one is the fact that prototyping improves the relationship and communication between the developer and the client and can better involve the client in the different phase of the software development process. This is essential in the second advantage that prototyping provides, ensuring that any changes in the product requirements are introduced at a stage where the implied...
Software Development Life Cycle ( SDLC) Explain Requirement process ( in SDLC) in detail. Why is this exercise important? Requirements engineering is a fundamental activity in systems development and it is the process by which the requirements for software systems are identified, systematized and implemented and are followed through the complete lifecycle. Traditionally engineers focused on narrow functional requirements. Now it is being argued by Aurum and Wohlin (2005) that focusing only
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