In the perspective of our country, Medical appointment/treatment (which is a part of the whole Medical system) is very much old-fashioned and backdated.

SOFTWARE MODELS

                                At first, we have chosen three software process models (for convenience) from which one of them will be chosen to implement the software. The models are: -  

1. The Linear Sequential or Waterfall Model
2. The Prototyping Model
3. The Incremental Model

At a glance, we want to look at the advantages and disadvantages of these

Software process models.

ADVANTAGES:

LINEAR SEQUENTIAL OR WATERFALL MODEL

• If requirements are well understood, then this model is the best approach to go with.
• This model is very much easy to implement and understand for its step-by-step approach.
• A good requirement analysis usually leads to quality software production.
• The model is quite a suitable one for beginner software developers.  

PROTOTYPING MODEL

• In this model, software can be developed without particular specification of requirements.
• Users get a feel for the actual system, as they remain almost directly involved to the upgrading process of the system.  

 

 INCREMENTAL MODEL

• This model may be implemented with very limited amount of resources. As with every increment an upgraded version is released, the first increment can only cover the basic needs required.
• This model is useful for surviving in this very high quality demanding, fast changing and competitive software market.    

DISADVANTAGES

LINEAR SEQUENTIAL OR WATERFALL MODEL

• The implementation of this model is not iterative. As a result, one cannot go back for changes.
• This model sometimes leads to “blocking states”. So, some project team members must wait for other members of the team to complete dependent tasks.

PROTOTYPING MODEL

• In this model, standard of the software falls as a result of quick prototype making.
• The customers often want to keep the prototype (as it is a working version) or make a couple changes to the prototype for use. This can be dangerous for it is not the ultimate version of the software.
• As the requirements are not known very clearly from the starting, the final result of this model always remains somewhat unpredictable.
• Going through the same cycle again and again can be a bit irritating at times.

INCREMENTAL MODEL

• This model usually doesn’t create new software now and then. It keeps on incrementing the same software.
• This model is heavily dependent upon customer evaluation.
• The ultimate final software product will either take a huge amount of time or never be developed.

CONCLUSION

                        After the advantage and disadvantage analysis, we ultimately choose the Linear sequential or Waterfall model for our software development. The reason is, it is easy to use and we are going to make sure of a good requirement analysis. We are not going for Prototype model because we have quite a good experience ourselves of the current Medical services provided. The rough idea is almost straight forward what we want to do. Therefore, there is no need of random customer participation during the process of the software development. The Incremental model is left out for we do not have that much time for producing the final product.