I am not her to teach you SDLC, which you can also find out anywhere in internet. I have recently developed my first Mobile App for Sourabhgupta.com. App is available on Google Play store and it is free to use. I am adding my all contents to my app but in first ver. I have provided only Online Learning section. I have used same SDLC steps/phases to develop Mobile app and in below points you can also refer them.

Mobile App development was not my first choice but as time demands we have to move on and always try to learn something new. Android app development was not easy, as I do not have any experience about it but I knew how to follow the SDLC steps. I have gathered all the information and one of my friends Jatin Sharma helped me to develop this app. We have taken approx. 4 months to develop this app from scratch. Yes it is not fully build but somehow I manage to release it is first ver. on Google play store. So first learn what is SDLC?? And How it is works in my Mobile App Development.

WHAT IS SDLC:

Software Development Life Cycle (SDLC) is a process used by the software industry to design, develop and test high quality software^'s. The SDLC aims to produce high-quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates.

SDLC is a process followed for a software project, within a software organization. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software . The life cycle defines a methodology for improving the quality of software and the overall development process.

A typical Software Development Life Cycle consists of the following stages ?

Stage 1: Requirement Gathering & Analysis

Requirement analysis is the most important and fundamental stage in SDLC. It is performed by the senior members of the team with inputs from the customer, the sales department, market surveys and domain experts in the industry. This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational and technical areas.

In my app, I knew everybody is looking for app now so I have developed my app. I have gathered all the information and market analysis that this is right time to release your first ver.

Once the requirement analysis is done the next step is to clearly define and document the App requirements and get them approved from the customer or the market analysts or self. This is done through an SRS (Software Requirement Specification)  document which consists of all the App requirements to be designed and developed during the project life cycle. For my App, My first reason was to develop is easy to install and access. Now you do not need to go anywhere or type any URL, You just need to install my app and access all pages like my website.

Stage 2: Designing the Product Architecture

When I confirmed with requirements what I am going to develop in my mobile app, I have started working on designing part.

I have used Framework 7 for my Mobile app development. I have categorized the features as per SRS reference and design the complete mobile app.

SRS is the reference for product architects to come out with the best architecture for the product to be developed. Based on the requirements specified in SRS, usually more than one design approach for the product architecture is proposed and documented in a DDS: Design Document Specification. This DDS is reviewed by all the important stakeholders and based on various parameters as risk assessment, product robustness, design modularity, budget and time constraints, the best design approach is selected for the product.

A design approach clearly defines all the architectural modules of the product along with its communication and data flow representation with the external and third party modules (if any). The internal design of all the modules of the proposed architecture should be clearly defined with the minutest of the details in DDS.

Stage 3: Implementation or Developing the Product

In this stage of SDLC the actual development starts and the App is built. The programming code is generated as per DDS during this stage. If the design is performed in a detailed and organized manner, code generation can be accomplished without much hassle.

Different high level programming languages such as PHP7, HTML5.0, CSS3, Mysql, JavaScript and Jquery are used for coding. The programming language is chosen with respect to the type of software being developed. It is completely developer^'s choice and in my app, it was my choice.

Stage 4: Testing the Product

This stage is usually a subset of all the stages as in the modern SDLC models, the testing activities are mostly involved in all the stages of SDLC. However, this stage refers to the testing only stage of the App where App defects are reported, tracked, fixed and retested, until the App reaches the quality standards defined in the SRS. I have tested on many devices along with browsers.

Stage 5: Deployment in the Google Play store

One of the difficult tasks to submit your app for deployment in the Google play store. It took more than two weeks of approval after that Google released my app on play store.

There are some criteria which we need to follow like code ver., checking of links, SRS module, quality assurance and many more.

I have received feedback from my friends and Then based on the feedback, the App may be released as it is or with suggested enhancements in the targeting market segment. After the App is released in the market, its maintenance is done for the existing customer base.

Stage 6: Maintenance

This is final stage of App development. We have to maintain the quality and make sure our product should be robust in every aspect.

Further development and market demands include more features which can enhance the production and usability of product. It is usual process but first we have to maintain the product and should fix all issues. In my app, I have seen so many bugs after releasing, so I have once again work on codes and re released in Google Play store but the more improvisation is always in progress.

That is how I developed my First Android Based Mobile App

Along with SDLC Models, we can use below models for developing the product

• Waterfall Model
• Iterative Model
• Spiral Model
• V-Model
• Big Bang Model

Other related methodologies are Agile Model, Rapid Application Development and Prototyping Models.