If You Choose the Waterfall Model in Software Project Management

Our team has more than 8 years of experience in app development and we are ready to bring your project to life following the waterfall model in software project management, if it suits the best in achieving your business goals.

What is the Waterfall Development Model?

The waterfall model in software development is a sequential design process for project management.

Once each phase of the model is completed, the developer can proceed to the next step. An important aspect of the waterfall model is that there is no possibility of change or error, so it is necessary to configure the results and the detailed plans first.

This method was presumably inherited by software developers from other industries and companies. Winston W. Royce has an explanation of the first formal waterfall test method in 1970.

Overview of the Model

We prefer to use the model:

  • If there is a clear picture of what the final software product should be.
  • It is unlikely that the client will change the scope of the project after the start.
  • The concept and definition are the key to success (not speed).
  • When there is not an ambiguous request.

The lifecycle of the model consists of six phases.

  • Requirement.The basis of the development process where all the requirements are met.
  • Analysis. When all the requirements are compiled and documented, it is time to analyze if they are valid.
  • Design · Construction. This stage can include implementation, development and coding processes.
  • Test stage. At this stage, a responsible expert tests the software and detects the error. It is important to verify that the product meets all the requirements of the client.
  • Installation / Deployment. The installation is the stage at which the product is implemented in accordance with all the requirements. Several test processes can be done at this stage.
  • Support and maintenance. The final product will be delivered to the customer. Maintenance and support are being implemented. If everything is fine, the product will continue to function as designed.

How to Create a Strong Requirement?

Its objective is to develop an address book using the waterfall project management model. The approximate list of product requirements is shown below.

  • You need the ability to import contacts from other programs.
  • Clients should be able to create new contacts.
  • They should be able to see the contacts.
  • They should be able to add images.
  • They can send contacts from the address book by email.

Why do Managers Prefer to use the Waterfall Approach?

Here we combine the key benefits of waterfall model and combine them into six points.

  • The model is easy to use.
  • The phases do not overlap. They are processed and completed one at a time.
  • The method is very rigid, so all stages are composed of a review process and specific deliverables, so it is easy to administer.
  • The waterfall software development method is suitable for small projects with clear requirements.
  • Depending on the waterfall of the method, clients know what to expect. They will understand the cost of the software, the size, the idea of ​​the timeline.
  • If your company has employee turnover rates, a solid documentation will minimize the impact on the software.
  • What problems can you face when using the model?

Despite all the Strengths Mentioned above, you can Find Several Shortcomings of Waterfalls:

  • High level of uncertainty and risk. If you need to find errors in the requirements or change something, you should start the project with a new code from scratch.
  • When your product is in the test phase, it is not easy to change back to something that is dark and unthinkable in the conceptual phase.
  • Using waterfall for complex object-oriented projects can not solve some essential problems. It also does not recommend using it for long projects or those in progress.

This Method is not Appropriate for a High Risk of Change.

Customers may not be satisfied with the delivered products. Since all tasks and deliverables are based on documented requirements, customers can not see what is offered until they are almost finished. It can be difficult to change something at that moment.

Difference between the Waterfall and Agile Model

Several options, different forms, schools of thought ... But what do you choose?

It seems a separate topic for discussion. However, to understand the basic differences, you can see this simple explanation:

The Waterfall Model is as Follows
A
  • A great sequential project.
  • A process that anticipated a clearly defined requirement.
  • It was structured.
The Agile Method is as Follows
B
  • Flexible.
  • A small software project (or many of them).
  • It is very cooperative.
  • Ideal for those who want continuous improvement.
  • Ideal to involve customers.
  • The process is expected to change the requirements.
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What Waterfall Model can do for you (and not for what you can do)

If you are working on project management, critical path, Scrum, PMBOK, and what is the approach to try to determine the most effective for the team, there is a possibility that there have been some strange words . Even if you never used it, I've heard about the waterfall management method.

Do you wonder if this approach is suitable for your management needs? In this guide, you will learn how the waterfall model simplifies management using sequential processes and how to implement aspects of this model in your work.

Whether this Model Suits you

In summary, waterfall project management is a sequential and linear process. It consists of several different phases. The phase does not start until the previous phase is completed and the completion of each phase can not return to the previous phase in the terminal wall fault management. The only way to revisit the stage is to do it in Phase 1.

Our experience in the waterfall software development management allow to achieve the best results.

If the waterfall model sounds difficult, it is because the history of the system required it. Waterfall management is rooted in non-software related industries, such as the manufacturing and construction industries, inevitably caused by the system. In these fields, the phases of the software development must be carried out sequentially. If you are not building a house, you can not put a drywall. In the same way, it is impossible to revisit the phase. There is not a good way to peel the concrete base.

  • The appropriate plan is mandatory in the waterfall system. The requirements must be clear and everyone involved must be fully aware of the requirements. Each team member needs to understand his or her role at every stage of development.
  • All this information must be documented and distributed to everyone. As described below, we recommend that you describe this information as a flow chart. The team can quickly understand and consult the requirements as needed. You can also add a flow chart to show which tasks go to which team members. This waterfall plan template is a great place to start.
  • Team members refer to the documents provided throughout the process. In this document, by properly obeying, we clarify what is expected and guide the creation of products. We also provide milestones that you can easily understand progress.

Therefore, exhaustive documentation is the priority of waterfall project management model. In spite of the sequential progress of the project, the documentation is carried out in each phase of the process to ensure that all involved are in sync.

Benefits of Waterfall Software Development Management

Most companies use a combination of management styles, but according to the LiquidPlanner report, 25.5% of the manufacturing industry currently uses waterfalls. For so many teams, what will make this model a success?

Keep the Training Simple
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This method guarantees the success of the project even with unexpected changes in bandwidth. Waterfall project management emphasizes comprehensive documentation, so you can easily and easily add new team members to the project. There is no need to intuitively understand what the absent programmers were trying to do. It is because everything is recorded, from the concept of the software to its completion. New team members can navigate documents and accelerate quickly.

Show Progress
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The management of the Waterfall project also shows the progress status easily. By establishing clear milestones in the first stage, it is easier to decide if the project is going according to plan. In the same way, the discrete phase indicates how complete the project will be completed at some point, since the waterfall system will not allow you to revisit the previous phase. This eliminates much of the speculation related to the project's timeline.

Facilitates Project Management
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These advantages, together with the linearity of the system, facilitate the management of the waterfall project. Thanks to the sequential system, you can tell when and where the project is and where it is. Managers can focus on team members who are participating in a particular phase, instead of struggling to manage large teams. In addition, if you have unexpected departures or personnel changes, you can quickly revive your team by documenting Waterfall.

Save Time and Money
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Regardless of whether we do everything possible to manage the waterfall projects, certain aspects of this model, that is, the exhaustive conceptualization and the detailed documentation, are ready to execute the project first in the correct way. By discovering and planning your requests in advance, you will save time and money.

If you need a reliable team of specialists for consultation or software development, drop us a line