SDLC

SDLC Bing Bang Model:

2020-05-16T10:30:00.000-07:00

SDLC Bing Bang Model:

No particular procedure followed in this SDLC model. sdlc

To get started with the big bang model, you need money and effort. sdlc

The outcome of the project might or might not be according to the requirements of the client. sdlc

Similar to the mindset of RAD, the Big Bang Model also jumps into the project with little planning, but the focus is on the software development and coding instead of the prototype. sdlc

It’s great for small projects with small teams, relying on action rather than planning. sdlc

It requires minimal resources and total flexibility to the developers. It is a high-risk option that would be nearly impossible on projects with complex needs, but is good for short term ideas with unknown requirements. sdlc

Also, because it does involve unknown aspects and little planning, there is potential for projects utilizing the Big Band Model to become costly. sdlc

This model used when the customer is not sure what exactly he needs. sdlc

The requirements not investigated as well. sdlc

As such, no predefined procedure followed in this model, so the requirements of the clients implemented on the go. sdlc

This model used by small development teams. sdlc

Why should you use the Big Bang Model? sdlc

Offers flexibility to the developers sdlc
Modules managed easily. sdlc
No formal procedure required. sdlc
Simple to use.sdlc
Require very less planning. sdlc

SDLC RAD Model:

2020-05-16T10:18:00.000-07:00

SDLC RAD Model: sdlc

The RAD model for software development lifecycle is a short form of ‘Rapid Application Development.’ sdlc

This model mainly depends on prototyping and iterative improvement with no particular arrangement. sdlc

In the RAD model, the functions or the components built-in parallel as if they were small projects. sdlc

The developments are time-boxed, delivered, and after that, assembled into an operating prototype. sdlc

sdlc

Those projects where prototypes are more useful than forethought usually use Rapid Application Development, or RAD. sdlc

This method consists of minimal planning and jumps right into development in order to utilize feedback. sdlc

It’s similar to the Spiral Model and Iterative Model in that it consists of repetitive corrections and changes in order to perfect the software, but differs in the fact that the issues are found within prototypes and less time is spent getting approvals and putting together a solid proposition. sdlc

Some projects need to be used in order to fully develop them. sdlc

RAD allows a presentation to the customer that can increase their opinion on the product in a favorable way, but does require being able to modularize the project and requires high skill levels. sdlc

Because this is essentially delivering multiple partial products, it will most likely be costlier making it a poor choice for low budget projects. sdlc

As there is no thorough preplanning involved in the entire process, it makes it simple to integrate the changes in the development phase. sdlc

This phase can rapidly give the client something to see and use and to deliver feedback about the delivery and the requirements. sdlc

It is a working model that is practically comparable to a part of the software. sdlc

This phase gives an idea about what the final product is going to look like once the software development phase completed. sdlc

SDLC RAD model has the following phases. sdlc

Business Modeling. sdlc
Data Modeling. sdlc
Process Modeling. sdlc
Application Generation. sdlc
Testing and Turnover. sdlc

The main features of RAD model are that it focuses on the reuse of tools, templates, code and processes. sdlc

Applications using RAD Model. sdlc

Applications use RAD Models when

System needs to produce in a short time period. sdlc
User requirements are clear. sdlc
There is less technical risk involved. sdlc
The client and user will involve throughout the life cycle. sdlc
There is a need to build a product that modularized in a time period of 2 to 3 months. sdlc

Why use it? sdlc

The rapid development of a product. sdlc
Repetitive review during the development phase. sdlc
Development of small reusable components. sdlc
Integration of reusable modules at an initial level hence saves effort despite not integrating bigger components. sdlc
Useful feedback. sdlc

SDLC V Model

2020-05-16T10:09:00.000-07:00

SDLC V Model

In this model the process execution done in V shape manner.

It is also known as Verification and validation model. sdlc

It is the extension of waterfall model. sdlc

It follows similar actions, but adds more to it creating a parallel of steps, hence the name V-model. sdlc

For each development phase, there is a testing phase as well. sdlc

sdlc

Instead of the stages following a cascade effect, they swoop back up to potentially repeated part of the process. sdlc

After determining the requirements and making sure everyone agrees with and knows what to expect, the designing stage is broken down by system, architectural, and modular designs. sdlc

Testing is done after each to find any possible flaws hiding within the software. sdlc

Coding is completed and the testing stage can begin, but as in the same fashion as the design stage, the testing is broken down. sdlc

It consists of unit, integration, system, and acceptance. sdlc

This breakdown offers multiple trials for the product to give the most chance for issue correction before release, thus possibly pulling it back into the development stages. sdlc

Each testing phase corresponds with one of the development stages to give a more defined process. sdlc

The V-Model does take longer than the Waterfall Model and has many of the same downfalls, but it offers more chances to fix issues earlier on. sdlc

While it is definitely a detailed way to perfect a project, it limits the flexibility of fixing bugs later on. sdlc

In this model the next phase will only start when the previous phase developed and tested thoroughly. sdlc

In this model, there’re Verification phases on one side of the ‘V’ while the validations phases are on the other side. sdlc

The Coding Phase joins both sides of the Model. sdlc

Verification Phases of V Model Includes: sdlc

Business Requirement Analysis. sdlc
System Design. sdlc
Architectural Design. sdlc
Module Design. sdlc
Coding Phase. sdlc

Validation Phases of V Model Includes: sdlc

Unit Testing. sdlc
Integration Testing. sdlc
System Testing.
Acceptance Testing.sdlc

Applications using V-Model sdlc

Used for small to medium-sized projects where the requirements defined clearly and fixed. sdlc
When enough technical resources are on hand with the required technical skills. sdlc

Why you should use V-Model sdlc

The progress of the project goes systematically. sdlc
Suitable for small and medium-size projects.sdlc
Testing will start from the requirement phase. sdlc
Tracking the progress of the project is easy.

dfdsdlcf

sdlc

SDLC Spiral Model

2020-05-16T09:58:00.001-07:00

SDLC Spiral Model

The spiral methodology merges the possibility of iterative improvement with some of the controlled parts of the waterfall model.

This methodology is a fusion of the iterative development model and the waterfall model.

sdlc

A less costly option is the Spiral Model. sdlc

This combines the Waterfall and the Iterative methods to utilize risk management and is best for projects with difficult and complicated requirements. The Spiral Model is great for products that need constant improvement and change. sdlc

This system heavily relies on constant communication between the customer and the SDLC team. sdlc

The idea is that you design and then build the software according to the base requirements, creating a Proof of Concept, or POC, that indicates what changes and alterations need to be made. sdlc

The developers and customer analyze the overall performance, taking note of issues, then the developers start the process over again, fixing those issues and reducing risk.

With each cycle, the product becomes more refined. sdlc

A significant downside to this model is the potential for the spiral to never end. It requires good management and a good deal of particular record keeping. sdlc

The more it cycles, the more complicated things can get. Of course, this hassle is worth it for projects that are high risk and need an evolving software. sdlc

The spiral model has further divided into different stages. sdlc

Identification sdlc
Design sdlc
Construct and Build sdlc
Evaluation and Risk Analysis sdlc

Project using this model go ver and over through the above-mentioned phases in iterations ,and that is why known as spiral model. sdlc

Applications using the Spiral Model sdlc

Applications using the spiral model include when: sdlc

Requirements are not precise, and they need an assessment to get a better idea of what the client is expecting. sdlc
The product releases are required to be frequent. sdlc
Critical modifications expected during the development of the software product. sdlc
Medium to high risks projects. sdlc
Limited budget but risk evaluation must do. sdlc

Reasons to use Spiral Model sdlc

The early software build is available for the clients. sdlc
The evolving requirements from clients get accommodated. sdlc
Monitoring of the project is useful and secure. sdlc
This model is highly flexible. sdlc

SDLC Iterative model

2020-05-16T09:53:00.000-07:00

SDLC Iterative model

In this model of software development life cycle, the iterative method begins with a simple execution of the small group of the requirements. sdlc

Iteratively the versions enhanced until we have a complete system that is all set to implement and deploy. sdlc

An iterative life cycle model doesn’t begin with a complete set of requirements by the client, so it is easier to use. sdlc

The development process starts by listing the requirements and executing only part of the program or system, which assessed to recognize the further needs of the software.sdlc

A model that is more suitable for changing needs and bigger products is the Iterative Model. sdlc

This one differs from the previously mentioned models by focusing on subsets of the software after the requirements stage and up to the release. sdlc

This allows user feedback, a greater ability to find issues during development, and an easier time fixing those issues. sdlc

Because the software is being built piece by piece, it does take longer and require higher levels of resources. sdlc

It all has to work together and without the skills to accomplish that it would be disastrous. sdlc

It essentially requires rewriting the software each time, with more added to it and fixes worked in. sdlc

One big benefit is that with each version of the software completed, it gives the customer and users a product they can use, satisfying their needs at a quicker pace while still improving the product. sdlc

However, this can also open the product to issues in the overall outcome.

As mentioned previously, it takes a great deal of skill to make sure all the pieces fit together, and even the most skilled may run into an unforeseen problem once all the subsets are finalized. sdlc

In the iterative model, modifications made in the system design and some new features during each iteration. sdlc

This process continues until complete software is ready according to the client’s requirements. sdlc

Applications using Iterative Model sdlc

The iterative model used when: sdlc

The system requirements defined and understood clearly. sdlc
The development project is vast. sdlc
The main requirements of the software or system must be well-defined; though, sdlcsome minor details could add with time. sdlc

Why should you use Iterative Model? sdlc

We can easily measure the progress of the project. sdlc
Testing and troubleshooting during smaller iteration is easy. sdlc
Planning of parallel development sdlc
It is readily acceptable to the ever-changing needs of the project. sdlc
Risks recognized and resolved during the iteration. sdlc

SDLC Waterfall model

2020-05-16T08:31:00.001-07:00

Waterfall methodology is the most widely recognized SDLC model.

It was the first process model.

Another name for the waterfall model is the linear sequential life cycle model.

Each phase in the waterfall model must finish before moving on to the next stage.

In the waterfall model the process divided into separate and different phases.

The outcome of the previous phase serves as the input of the next phase.

It’s straightforward and simple, but sometimes complicated projects require more steps. sdlc

Some software is better repeating various stages multiple times or even rearranging them a bit. sdlc

While the Waterfall Model shortens the project and offers an almost effortless explanation of the process and simple distribution of resources, the overall concern should always be on what is best for the proposed software. sdlc

This is certainly the easiest to keep track of stages and records, but it doesn’t have room for testing during the process and is not the best option for those products that require constant changes. sdlc

Though it is great for smaller projects that are made to be stable, it won’t give much insight into overall performance until later in development. sdlc

There are six phases in the waterfall model, including: sdlc

1. Requirement Gathering and analysis sdlc
2. System Design sdlc
3. Implementation sdlc
4. Integration and Testing sdlc
5. Deployment of system sdlc
6. Maintenance

Applications using Waterfall sdlc

The waterfall model used when: sdlc

All the requirements are precise, documented, and fixed. sdlc
No vague requirements. sdlc
Smaller projects. sdlc

Why should you use Waterfall Model? sdlc

The waterfall model follows a strict process. sdlc
A phase must complete before moving to the next phase.
It is simple and easy to understand. sdlc
The tasks arranged efficiently. sdlc
All the stages defined clearly.
Capture the outcome of the project and process.

Most popular models of SDLC

2020-05-10T22:02:00.000-07:00

Maintenance SDLC

2020-05-10T21:57:00.000-07:00

Maintenance SDLC

Finally, once everything is done and the product has been released, you might think it’s time for the team to relax.

You’d be wrong. sdlc

Even on projects that involve a product with minimal planned changes will need some maintenance after release.

Technology is constantly changing, and as such, it is necessary to keep up with those changes. sdlc

You may need to tweak some of the software to work with new devices or enhance some of the features within the program.

Often, bugs will still pop up that need fixing, even after all the testing and initial release.

When the software deployed on the client-side, and they start using the software, some activities carried out to make sure that the system or software is working correctly.

Some of the activities that Maintenance phase include: sdlc

Bug Fixes: There might be some bugs that occurred due to some scenarios during deployment, they were not discovered and tested during the testing phase. sdlc
Upgrade: Upgrade the software to a newer version. sdlc
Improvement: There might be some new features developed, and now they should add to the existing software. sdlc

Keep in mind that in case the software shows any sort of issues in the future, the client has the right to contact the software developers and ask for its maintenance. sdlc

SDLC Release

2020-05-10T02:42:00.000-07:00

SDLC Release

SDLC sdlc

As soon as the software testing phase completed, the next phase of the installation and deployment of the software comes in.
After everything seems to be working correctly, it’s finally time to deploy the product.

Sometimes, the release is in stages or to a specific group. sdlc SDLC

This all depends on the strategy detailed in the overall plan, as it may rely on gaining feedback. sdlc SDLC

Sometimes that feedback comes from a small group while sometimes it’s just released for general use. sdlc SDLC

After the feedback, if it’s decided that changes are needed, it will be worked on some more to make it more profitable or usable. sdlc SDLC

Cumbersome usability or awkward functions can lower the overall sales and reduce the potential revenue of the product. sdlc SDLC

In this phase, the finished software released to the customer and verify whether there are any issues in the deployment of the final product, sdlc SDLC

SDLC Testing

2020-05-08T12:21:00.000-07:00

sdlc, SDLC

When you complete the coding phase, the most critical stage comes in, i.e., testing the software. sdlc

It is applicable to both functional and non-functional testing.

Once they have created the product, it will be tested thoroughly.

Many of the methods utilize some testing throughout the process, but there is always a focus on it after the building process is complete. sdlc

This important stage will determine any weaknesses and give the developers an opportunity to correct them.

A certain part of the team will run the program through trials, trying to find any bugs or errors within the system. sdlc

If they find something, it’s reported back to the developers to fix.

Some models of SDLC will have multiple testing and developing stages in order to perfect the project. sdlc

Each module is unit tested to check whether it is working as per the requirements of the customer. sdlc

The quality assurance and testing teams might discover a few bugs and errors during this stage. sdlc

They will convey these bugs and errors to the developers so that they can fix them.

As soon as they fix the bugs and errors, they will send back the software to the testing and QA team for re-testing it. sdlc

Execute until the software is error-free and bugs, and it is operating as per the requirements of the client. sdlc

SDLC Framework

2020-05-08T12:10:00.000-07:00

Contact : https://www.tracedynamics.com/sdlc/ A software development life cycle (sdlc) is a framework that provides the process consumed by organizations to build an application from its inception to its end. The software development life cycle abbreviated as sdlc framework. sdlc framework is a process used for developing software application or product. It is a procedure performed by the organization and followed step by step to develop and design the right quality product. Different phases of the software development life cycle determine, It aims at developing high standard software. The software produced using sdlc models is later reviewed by project managers to validate, whether it is according to the client’s requirements and whether it finishes appropriately or it needs some changes. It also helps to estimate the cost that needs for the development cycle of a single software program. sdlc is also known as the Software Development Process. 𝐅𝐨𝐥𝐥𝐨𝐰 𝐌𝐲 𝐒𝐨𝐜𝐢𝐚𝐥 𝐏𝐫𝐨𝐟𝐢𝐥𝐞 ＦＡＣＥＢＯＯＫ ↱ https://www.facebook.com/tracedynamics ＴＷＩＴＴＥＲ ↱ https://twitter.com/TraceDynamics ＢＬＯＧＧＥＲ ↱ https://www.tracedynamics.com/sdlc/ ＰＩＮＴＥＲＥＳＴ. ↱ https://www.tracedynamics.com/sdlc/

SDLC Implementation

2020-05-08T11:56:00.000-07:00

sdlc, SDLC

Once you complete the designing of the software, the next phase that arrives is Implementation.

After all the levels of planning are complete, it’s time to actually begin creating the software.

The development is done by the coding genius.

The programming tools and the language is determined by the job they are doing, using what fits the requirements the best.

During this stage, tasks are assigned in modules and preplanned guidelines must be followed.

The coders will use one of multiple programming languages and will write the code that builds the software.

If this is not done cooperatively, the program will not work correctly. sdlc

The DDS and SRS should give the developers all the information they need to know. sdlc

The tasks divided into different modules and units. sdlc

These units and modules assigned to different developers. sdlc

This phase takes most of the time that defined for the project.

There are some of the predefined coding rules followed by the developers while developing the software. Sdlc

The programmers use compilers, interpreters, and debuggers for generating and implementing the code.

SDLC Design

2020-05-08T11:23:00.000-07:00

SDLC, sdlc

After everyone is satisfied with the SRS, the designs can begin. sdlc

The Design Document Specification, or DDS, is where all the tiny details are decided. sdlc

It’s the architectural model and shows how the software will communicate with external parties. sdlc

If the SRS is what the stakeholders want to see, this is what the coders want to see.

It consists of information on the modules and how they interact and function, and contains the elements of the database tables with diagrams and details.

It’s the roadmap to creating the software.

Just like the SRS, the DDS will lead to problems further down the project if it’s not done correctly.

You want to avoid any unexpected expenses or problems that could’ve been curtailed.

Design helps the developers in defining the architecture of the system.

Design phase acts as input for the next phase of SDLC.

The designs used for the development of the software are of two different types.

The first one is High level design commonly known as HLD, while the other one named as low-level design often abbreviated as LLD, respectively.

SDLC Requirement Specification

2020-05-08T10:55:00.000-07:00

SDLC

The next stage is to prepare a Software Requirement Specification, or SRS, document that details exactly what will be needed to develop the product.

This phase is to define the requirements, document them, and then get them accepted from the client. SDLC

It gives the assessment the costs, legalities, feasibility, and schedule. sdlc

It tells if the technical capabilities are there to support the idea. sdlc

Does this project meet legal regulations and is the budget reasonable? This is what the stakeholders want to see and what they care the most about.

This information is taken to the customer or analysts for approval and final consultation, keeping everyone in the loop and ascertaining everyone’s satisfaction with the plan.

SDLC makes it easier for the developers, but there also needs to be a strong level of communication and continuity through the entire team to affirm the end result is what it should be.

If it’s not planned for in the SRS it can lead to dissatisfaction with the customer or somewhere in the team.

The following are the five types of feasibility checks. sdlc

Economic: Is it feasible to complete the project in the defined budget?
Legal: Can this project handle regulatory compliance or frameworks?
Feasibility of Operations: is it possible to create the operations that the client is expecting? sdlc
Technical Support: Whether the current system will be able to handle and run the build software? sdlc
Schedule: whether this project could complete in the given time frame?

More>>

SDLC Phase Planning

2020-05-06T01:45:00.000-07:00

SDLC Phase Planning

When using SDLC, the first and probably the most important step is planning.

Its the most critical and essential phase of the SDLC process.

Here is where the ideas are used to set the goals for development.

The sales department also plays a vital role in requirement gathering. SDLC

Everything is taken into account, from market surveys to technical requirements.

This is all done by senior members of the development team, giving the customer the benefit of their expertise and experience.

Because this is the groundwork, attention to details and multiple opinions and sources are examined to guarantee the best outcomes.

Complete information gathered from the sources mentioned above is used for planning the project approach.

This data also helps to conduct the feasibility study of the product in economic, technical, and operational fields.

In this phase, identification of quality assurance planning and the risks associated with the project. SDLC

The main aim of conducting the feasibility study is to get familiar with different methods used in completing the project in the best way with minimum risks.

SDLC

SDLC Phases

2020-05-06T01:36:00.000-07:00

SDLC

The software organization uses SDLC, and there are different SDLC phases to choose from.

The detailed plan of the software development life cycle consists of several phases, and these phases used to improve the development cycle process as well as the quality of the software.

Seven main phases of SDLC process listed and discussed below.

1. Planning
2. Requirement Specification
3. Design
4. Implementation
5. Testing
6. Release
7. Maintenance

Lets go through these phases in brief.

Software Development life cycle overview

2020-05-06T01:29:00.000-07:00

SDLC

The process of SDLC starts once you have taken a project of developing software.

It might be a project performed under the supervision of a single person or an entire organization.

SDLC will help you in defining and determining everything that needs to build software.

It is an essential process for developing high-quality software.

The processes evaluate using SDLC involve forming, maintaining, changing the content, and increasing the quality of specific software.

The software development life cycle helps in defining and improving the entire SDLC methodologies that requires development software.

A secure SDLC process ensures that security activities such as testing, code review, and analysis are core part of the development effort.

The Advantages of having a secure SDLC approach are:

Secure software as security is a continuous concern.
Attention of security considerations by stakeholders.
Early detection of issues and loop holes in the system.
Reduction of business risks.
Cost saving as a result of early detection and resolution of application security issues.

Reasons for learning SDLC

2020-05-05T22:33:00.000-07:00

SDLC

As the SDLC is a procedure for developing, designing ,and testing high-quality software, it is very much needed for the hour.

The entire systems development life cycle depicts any methods that may need for,

improving the quality of the software and the procedure.

If you are someone whose interested to develop software, then you must learn to know about SDLC.

Because without it, you will not be able to produce high-quality software.

Learning SDLC will help you to define tasks that you need in each step of software development methodologies.

Why SDLC?

2020-05-05T10:57:00.000-07:00

SDLC

When developing software, the goal should be to have the least issues possible and to increase customer satisfaction.

You want your product to perform the way it’s designed to, but there will always be minor issues that spring up.

The best way to combat those minor issues is to catch them during development is through Software Development Life Cycle or SDLC.

It’s essentially the building blocks and structural testing of the software, making sure that each step is executed in a cohesive and functional manner.

From planning to deployment, it offers the tools needed to customize your developing goals to fit your needs.

There are many methods of SDLC, each catering to different needs of products and services.

Sometimes getting a finished project is the primary goal and sometimes it’s to have it as perfect as possible, no matter how long it takes.

It may be that you need to finalize plans while developing in order to see what works, and other times it’s best to keep things simple.

Each proposed product needs to be considered to determine how to proceed with bringing it to life. From simple to complex, each one will require a team of individuals to make it work.

What is SDLC? (SOFTWARE DEVELOPMENT LIFE CYCLE)

2020-05-05T10:31:00.000-07:00

sdlc

A software development life cycle (SDLC) is a framework that provides the process consumed by organizations to build an application from its inception to its end.

The software development life cycle abbreviated as SDLC framework.

SDLC framework is a process used for developing software application or product.

It is a procedure performed by the organization and followed step by step to develop and design the right quality product.

Different phases of the software development life cycle determine,

“how to produce and maintain a required software”?

It aims at developing high standard software.

The software produced using SDLC models is later reviewed by project managers to validate,

whether it is according to the client’s requirements and whether it finishes appropriately or it needs some changes.

It also helps to estimate the cost that needs for the development cycle of a single software program.

SDLC is also known as the Software Development Process.