Incremental Model in Software Engineering | SDLC
Summary
TLDRThis video tutorial introduces the Incremental Model, a software development approach where projects are built module by module rather than all at once. It's particularly beneficial for large projects, allowing for early releases and customer feedback integration. Key advantages include maximized customer interaction, reduced error chances, balanced cost and resource allocation, and flexibility to incorporate changes. The Incremental Model is ideal for mobile and web applications, ensuring a steady flow of updates and new features, enhancing user experience.
Takeaways
- 🔄 Incremental Model is a software development approach where the software is developed and delivered in a series of increments or modules.
- 🛠️ It is particularly suitable for large projects, allowing for the development of a single module at a time, which can then be expanded upon.
- 🏫 An example given is an LMS (Learning Management System), where different modules for students, teachers, and administrative staff are developed incrementally.
- 🔒 The process begins with a locked phase of requirements and specifications, leading to the creation of an SRS (Software Requirements Specification) document.
- 🔑 Build 1 represents the first module development, which includes designing, development, testing, maintenance, and implementation.
- 🤝 Customer interaction is maximized in the Incremental Model, leading to better feedback and reduced chances of errors.
- 💼 It allows for a balanced cost application, as resources and finances are allocated incrementally rather than all at once.
- 📈 Suitable for product-based companies that want to launch features early, meeting early market demands and providing a steady rollout of features.
- 📱 Ideal for mobile and web applications that receive regular updates, reflecting the incremental development and addition of features.
- 🔀 Highly flexible to changes, as each module can be individually updated or modified without affecting the entire system.
Q & A
What is the Incremental Model in software development?
-The Incremental Model is a software development approach where the software is built and delivered in increments or modules, rather than all at once. This allows for iterative development and testing of each module before moving on to the next.
Why is the Incremental Model particularly suitable for large projects?
-The Incremental Model is suitable for large projects because it breaks down the development into smaller, more manageable modules. This makes it easier to manage, test, and maintain, and allows for early delivery of some functionalities to the end-users.
Can you provide an example of how the Incremental Model is applied in a real-life scenario?
-Yes, a real-life example is a Learning Management System (LMS) where different modules like student, teacher, and administrative modules are developed incrementally. Initially, perhaps the attendance module is developed, followed by modules for uploading materials, and so on.
What is the significance of the 'lock' phase in the Incremental Model?
-The 'lock' phase in the Incremental Model refers to the stage where all the requirements and specifications are finalized and documented, typically in an SRS (Software Requirements Specification) document, before the development of the first module begins.
How does the Incremental Model affect customer interaction during the development process?
-The Incremental Model maximizes customer interaction as each module is delivered to the customer for use and feedback. This allows for continuous improvement and ensures that the final product meets the customer's evolving needs.
What are the advantages of the Incremental Model in terms of cost management?
-The Incremental Model allows for a balanced cost application as resources and funds are allocated incrementally with each module. This prevents the need for a large upfront investment and helps in managing costs more effectively.
How does the Incremental Model facilitate early product release?
-The Incremental Model enables early product release by allowing the delivery of the first functional module to the market. This can help satisfy early demand and provide a competitive advantage.
Is the Incremental Model beneficial for mobile and web applications? If yes, how?
-Yes, the Incremental Model is beneficial for mobile and web applications as it allows for regular updates and the addition of new features, which keeps the application fresh and responsive to user needs.
What is the relationship between the Incremental Model and flexibility to changes?
-The Incremental Model offers high flexibility to changes because it allows for modifications and updates in each module as they are developed. This means the product can evolve in response to user feedback and technological advancements.
What are the key points to consider when adopting the Incremental Model?
-When adopting the Incremental Model, key points to consider include proper requirement locking, phased development and testing of modules, continuous customer interaction, balanced cost management, and the ability to adapt to changes flexibly.
Outlines
🚀 Introduction to Incremental Model
The speaker welcomes students to a video discussing the Incremental Model, emphasizing its relevance for competitive exams, university exams, and interviews. They encourage viewers to like, subscribe, and share the video. The Incremental Model is defined as a development approach where modules are created one after another, rather than all at once. This is particularly useful for large projects, such as a Learning Management System (LMS), where different modules like student, teacher, and administrative functionalities are developed incrementally. The speaker uses the LMS as an example to illustrate how development is done in phases, starting with the attendance module and then adding more features like online material upload. The process involves locking down the requirements and specifications first, creating the Software Requirements Specification (SRS) document, and then proceeding with development, testing, and maintenance in a step-by-step manner. The speaker highlights the advantages of this model, including maximum customer interaction, which minimizes errors, and the ability to balance costs and resources over time.
🔄 Advantages of Incremental Model
The second paragraph delves into the advantages of the Incremental Model, focusing on its flexibility and the ability to adapt to changes. The speaker points out that since development is not done all at once, it allows for modifications and updates to individual modules without affecting the entire system. This flexibility is crucial for large projects and product-based companies that aim for an early release of their products. The model is also beneficial for mobile and web applications that require regular updates and feature additions. The speaker concludes by emphasizing the model's suitability for applications that need to be updated frequently, using the example of mobile applications that receive updates to include new features over time.
Mindmap
Keywords
💡Incremental Model
💡Module
💡Development
💡Customer Interaction
💡Cost and Manpower
💡SRS Document
💡Testing
💡Maintenance
💡Phases
💡Flexibility
💡Early Release
Highlights
Incremental Model is a development approach where modules are developed one by one rather than all at once.
This model is particularly useful for large projects, allowing for phased development and implementation.
The Incremental Model is exemplified by a Learning Management System (LMS), where different modules for students, teachers, and administrators are developed separately.
The process begins with the requirement and specifications phase, where the Software Requirements Specification (SRS) document is created.
Development starts with Build 1, focusing on the first module, including design, development, testing, maintenance, and implementation.
Customer interaction is maximized in the Incremental Model, leading to minimal error chances as feedback is incorporated after each module.
Cost and resource allocation are more manageable, as only a portion of the total is required for each module's development.
The model is beneficial for product-based companies looking to launch features early, meeting market demands promptly.
Mobile and web applications often use the Incremental Model, releasing updates with new features incrementally.
The model allows for flexibility in changes, as each module can be updated or modified after it has been released.
The Incremental Model is ideal for projects that require frequent updates and customer feedback integration.
Each module's development is a step-by-step process, ensuring that each part is thoroughly tested and refined.
The model is advantageous for managing large-scale projects where a complete simultaneous development would be overwhelming.
The Incremental Model facilitates a gradual release of features, which can help in managing customer expectations and feedback.
This model is also suitable for environments where resources are limited, as development can be paced according to availability.
The Incremental Model promotes a customer-centric approach, as development is driven by feedback and interaction after each module release.
The model is adaptable to changes in market trends and customer preferences, as new modules can be quickly developed to respond.
The Incremental Model supports a continuous development cycle, where each module's completion leads to the next phase of development.
Transcripts
Dear students welcome to gate smashers
In this video i am going to explain
What is Incremental Model?
Related to incremental model
We will discuss each and every point and fact in this fact.
Whether you are preparing for competitive exam
foreign university exam or for interview.
If you are asked anywhere
Then these points are more than sufficient.
Fastly like the video and subscribe the channel.
If you have not done till yet
If you have already done
Then you can share and subscribe from other devices
because subscribers are so much important.
So come let's start
Incremental Model
What is the meaning of Incremental?
It means we are developing module by module
Rather than doing development at a single time
Firstly we created a single module
After that we created second module
which is Incremental.
Such as firstly we created a small module.
After that we added one more module inside that.
Then inside that we added one more module.
Therefore we say this Incremental model.
If it is a large project
It is specially for the large projects
If it is big project
Let me take a real life simple example LMS.
Learning management system
As your college or university has learning management system
Then see there
Student have a separate module
Teachers have a separate module
Dean & HOD have a separate module
There is a separate module of attendance.
If there is any cultural cell or placement cell then it will have a separate module.
What i mean to say?
I did not did complete development at a single time.
I firstly asked to create attendance module
I can take online attendance
Students can see their attendance online.
I firstly created that.
After that i felt this module is completely right.
Then we can see and take teachers attendance online.
Then we started uploading material
Teachers can upload the material
Students can see that materials
What i mean to say?
Rather than creating software for a single time
You are doing development module by module.
See first phase comes requirement
The phase of requirement and specifications
You have to lock that phase first.
What is the meaning of lock?
Not down all the requirements and specifications
Note down each and everything properly.
SRS document will create here
After creation of SRS document
After that you have started the development
Firstly you create build 1
Build 1 means you created first module
In that firstly you did designing, dvelopment.
Then comes testing
After that you maintained that and implemented.
Finally then you will go to Build 2 Module 2, 3, 4.
By this way you are doing development module by module.
Now in your mind it must have come
What are the advantages and disadvantages?
So if we talk about its points
Then see i am saying again and again module by module.
Then customer interaction is maximum.
See here you are giving module 1
You gave module 1 to customer
Customer is using that module
While using that he came to know
What changes i need in next one.
What i want to added
What i wanted to be removed
Here customer interaction is maximum.
So error chances will be minimum
Your error chances will be minimum.
This is a major development and advantage.
Second important point comes here
You got any software
Now you have to create completely at a single time.
Then you have to apply cost also at a single time.
Company have to apply whole cost and manpower for a single time.
You took all the money from customer.
No what we are doing
We are creating a module 1
You are provided a time duration.
In this much time we will provide you module 1.
We took some percentage amount from him
We took 20% or 30%
We did not applied whole manpower, cost, machinery.
We did not take each and everthing for a single time.
We created according to this.
After that we will go to second and third
Somewhere it keeps balanced costwise.
You don't have such need to apply whole manpower suddenly.
This is a advantage that occurs here.
Then this is very much important for large projects.
They are applications or product based company.
They want to launch a product
Rather than doing whole at a single time
It is also beneficial for the early release product demand.
Means any product demand is coming early
Means release that as soon as possible.
If i cannot do whole at a single time.
Then i can early release its some part or portion.
Therefore i am saying this model is better for
your mobile application, android, web application.
As you have seen when you install mobile application, web application.
What happens in that?
Updation comes time to time
Especially for the mobile application in android
You downloaded any application
You are using it
After one month updation comes in that
So you will update
Then new features will include
After that when you update after 2 month
Then new features will include
Mean to say
They are trying to maintain each and every thing in a step by step manner.
This is a advantage.
Then flexible to the change
Rest of the points have come into your mind
Now make as many stories as you want
Obviously it is flexible to changes.
We are not doing at a single chance.
Firstly we created a module one
Any change we want to do in that
We can do that changes also.
It is not such that we are maintaining that whole product after implementing that.
Then we are findings error
We are seeing customer interaction properly
There is no error
We are checking again and again in user testing phase.
Somewhere flexibility becomes here
Whatever changes you want to do
These are the major points related to the Incremental model.
Thankyou
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