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Sunday, May 26, 2013

We have been taking about software development in the previous posts. With this post I will be discussing about the types of software development life cycle. I know most of you may have already know what are these but let us have a closer and clearer view on how these life cycles works. Before we start let us first talked about the SDLC model.

SDLC or Software Development Life Cycle is a model or framework that displays the activities and processes that are done during each phase of software development project. Models are need in order to understand the complexity of computer systems as well as the requirement needed in order to make sure that a powerful software is done!

Let us now talk about the types of SDLC models that are being used by most of the software developers today.

·         The Waterfall Model – One of the classic and most widely used SDLC model. It has a linear sequential process in which the progress is seen as flowing steadily downwards which looks like a waterfall. This model slices the software development process into 6 different stages namely:
o   Project Planning
o   Requirement Definition
o   Design
o   Development
o   Integration and Test
o   Installation
o   Acceptance
The waterfall model is also the basis of all the SDLC models and methodologies. 




·         Spiral Model – If you are working on large, expensive and complicated projects then Spiral model is the best for you! This model combines the features of prototyping (will discuss this below) and waterfall model.  This model uses many phases on the waterfall model which are also in the same order separated by planning, risk assessment and prototypes and simulation.

·         RAD – Rapid Application Development offers interesting approach as it focuses on developing the prototype first.  The users will experience the prototype which will displays on how the actual product will work. Changes and alterations are being done during the prototyping process. Also, less communication with the developers is observed.

·         Agile Methodology – Today, the SDLC model that is very popular is the Agile methodologies. This is a combination of various software development methodologies that are based on iterative and incremental development. Huge collaboration is involved here as solutions are being discovered between the team members.


I have detailed four major part of the SDLC model. On the next post I will be taking about the advantages and disadvantages of these SDLC methodologies.
After defining the different types of SDLC models let us now talk about the advantages and disadvantages of them so that we will have a clearer view on what is the best model to use while on a custom software development project. Let us start on the Waterfall Model.



Waterfall Model

Waterfall model is a classic SDLC model and has been the basis of the other methodologies. Advantages of this model include;
·         It is easy to use
·         It can be easily interpreted and understand
·         It can provide developers with a clear view of the structure of the project. It can also assist inexperienced members of the group for them to easily understand the processes and actions that have to be done.
·         Milestones are easily understood by the team. So they can focus on what to do.
·         Stability for the requirement is also observed.
·         It is good for controlling the entire project management team.
·         This process is recommended when quality is essential compared to the cost and schedule.

Disadvantages:
·         Project requirements must be identified upfront. Since this process follows a sequential linear flow, project requirements identified at later point cannot be easily appended to the project.
·         This model does not allow iterations. Therefore there is no problem solving nature in this process.  All of the needed information must be gathered first before doing a custom software development.
·         There are no prototypes hence the customer will only see the project at the end once the developed software and application is done.

When to Use Waterfall Model

Based on the advantages and disadvantages above, this SDLC model is useful if all of the requirements are evidently known. Thus, thorough research and interviews must be done in order to collect the needed data in the application development process. This model is also ideal on products and services that are firm and stable. It also requires that the software developers are geared with excellent software development skills in order to come up on a powerful and useful application.

The Waterfall model can also be used if the customer already has existing software that need to have a new version or update or an existing product that has to be imported on a new platform.

With a lot of the methodologies it might be difficult on what to choose. The important thing is that the SDLC model that you will use will work appropriately on your custom application and software development project. 

Thursday, May 23, 2013


Software development at its best lead to the formulation of Keeling Consulting products and services. Surely, you'll have no regrets so contact them now or you may visit their website http://www.keelingconsulting.com.

Thursday, May 16, 2013


Every business has specific requirements and needs that have to be met. When software development is properly executed, it can allow your business or organization to be developed in the global scene. If you are considering to extend your reach from the local marketplace to the global sight, you have to know all the best strategies that you have to use in your custom software development efforts. This topic is definitely a broad one thus if you are not an IT person, it can be difficult for you to understand specific terminologies and methodologies that you have to know so you can effectively market your product.



Software development is more commonly used for business purposes rather than for personal use. If you are aiming for global visibility, you have you make your project a cut above the rest by using the most efficient tools like asp.net development and vn.net development that are easy to debug in. You have to deal with the most creative ideas that are more creative in every sense. Keeling Consulting  has a team of experts that can create aesthetically pleasing projects for you.

Much like the various social issues that we face today, software development is a broad topic. Keeling Consulting will be very much excited to assist you with everything that you have to know in order to come up with the most effective strategies or methodologies using the most up-to-date tools. They can provide you with your custom built software solution in the Louisville and in the surrounding areas. They can help you take advantage of all the developments in technology and since technology changes very quickly, your problems from yesterday has more possibilities to be solved today. You do not have to be intimidated with software development issues when you can partner with a reputable firm that can assist you from coming up with the best concepts to the completion of your project.

Realizing your goals and implementing all the possible solutions that will make your business more efficient and productive to effectively reach your target audience can be easier. If you think that you are ready to go global, Keeling Consulting can be the firm to partner with. Get ready for better value- add service to your potential clients. In Keeling Consulting, we have all the solutions that you need for the specific requirements and needs of your business or organization.