Because all of the stages are working simultaneously, any changes to user requirements halts the work on any component dependent on the component being changed. This can lead to a much longer development cycle than originally planned for. Additionally, this model requires excellent and current communication between all teams, which is sometimes not easily feasible.
None really if you apply it correctly. It is not as simple as some methods (but then projects aren't always simple to define and execute). NB: the M stands for 'Method'.
Movement of a process among states inside activity is confusing sometimes.
Besides it requires more resource(intellectual).
The concurrent development model, sometimes called concurrent engineering The concurrent process model can be represented schematically as a series of major technical activities, tasks, and their associated states. For example, the engineering activity defined for the spiral model is accomplished by invoking the following tasks: prototyping and/or analysis modeling, requirements specification, and design. The activity-analysis-may be in any one of the states noted at any given time. Similarly, other activities (e.g., design or customer communication) can be represented in an analogous manner. All activities exist concurrently but reside in different states. For example, early in a project the customer communication activity has completed its first iteration and exists in the awaiting changes state. The analysis activity (which existed in the none state while initial customer communication was completed) now makes a transition into the under development state. If, however, the customer indicates that changes in requirements must be made, the analysis activity moves from the under development state into the awaiting changes state. The concurrent process model defines a series of events that will trigger transitions from state to state for each of the software engineering activities.
Advantages of system development life cycle in terms of waterfall model it only requires minimal resources in implementing this method. But it is hard to go back and change.
if technology used well, it is good for the future development of man kind, and if wrongly used, there will be no mankind for the development !!
All industries are using the waterfall model for software development.
Advantage of waterfall model : It is simple and easy to use. Dis Advantage of waterfall model : no user feedbacks are taken.
no
advantage: applicable all types of s\w.... to give accurate picture of current project... easy to understand.... easy to use.......
The concurrent development model, sometimes called concurrent engineering The concurrent process model can be represented schematically as a series of major technical activities, tasks, and their associated states. For example, the engineering activity defined for the spiral model is accomplished by invoking the following tasks: prototyping and/or analysis modeling, requirements specification, and design. The activity-analysis-may be in any one of the states noted at any given time. Similarly, other activities (e.g., design or customer communication) can be represented in an analogous manner. All activities exist concurrently but reside in different states. For example, early in a project the customer communication activity has completed its first iteration and exists in the awaiting changes state. The analysis activity (which existed in the none state while initial customer communication was completed) now makes a transition into the under development state. If, however, the customer indicates that changes in requirements must be made, the analysis activity moves from the under development state into the awaiting changes state. The concurrent process model defines a series of events that will trigger transitions from state to state for each of the software engineering activities.
Advantages of system development life cycle in terms of waterfall model it only requires minimal resources in implementing this method. But it is hard to go back and change.
There are many advantages and disadvantages of rural development in Manicaland. One advantage is the community that is built with the development.
A disadvantage of community development is that there will be more traffic. Another disadvantage of community development is noise, more people, and more crime.
concurrent
Parallel development occurs when there is a need for separate development paths to diverge from a common starting point, so that there is no longer a single "latest and greatest" version, but instead two or more concurrent "latest" configurations (often called variants) where new development is carried on. Also implicit is the potential need for the divergent development paths to converge again. This means that any strategy for development branching should also take into account the process for merging.
what are the advantages and disadvantages of the biomedical model
advantage and disadvantage of system model
advantages and disadvantages of linear model communication
Concurrent Powers