Skip to content

Application_Development_SDLC-Module-1

2026-08-05 15:47

Tags: #ADET

Author: Duke Hsu

Topic

  1. Application Development Life Cycle
  2. Types of Applications
  3. Emerging Technology Trends
  4. Modern Development Tools

1.0 Software Development Life Cycle

Planning & Analysis

Planning

  1. Define project goals and scope

  2. Identify stakeholders and users

  3. Estimate time, cost and resources

  4. Create project timeline & risks

  5. Establish success metrics

Analysis

  1. Gather user requirements

  2. Document functional needs

  3. Analyze business processes

  4. Create use cases & user stories

  5. Identify system constraints

  6. Validate requirements with users

Design & Implementation

Design

  1. Create system architecture.

  2. Design database structure.

  3. Design user interface (UI/UX).

  4. Define data models & APIs.

  5. Create prototypes & wireframes.

  6. Select technology stack.

Implementation(Coding)

  1. Write clean, modular code.

  2. Follow coding standards.

  3. Use version control(Git).

  4. Implement features iteratively.

  5. Conduct code reviews.

  6. Document the code

Testing , Deployment & Maintenance

Testing

  1. Unit testing

  2. Integration testing

  3. System testing

  4. User Acceptance Testing (UAT)

  5. Bug fixing & regression.

Deployment

  1. Release planning

  2. Environment setup

  3. Data migration

  4. Go-live activities

  5. User training

Maintenance

  1. Bug fixes & patches

  2. Performance monitoring

  3. Feature enhancements

  4. Security updates

  5. User support

2.0 Types of Applications

Desktop Applications

Software programs installed and run on a personal computer or workstation. They have full access to system resources and can work offline.

Web Applications

Applications accessed through a web browser over the internet. No installation required , uses can access them from any device with a browser.

Applications type Example Advantages Disadvantages Technologies
Desktop Applications MS, PS, VS code, Obisidian etc.. Fast, performance, offline, many features Platform dependent, manual updates, installation required C++, Csharp,Java, Electron, .NET, Python,rust,
Web Applications Gmail, FB,Netflix, ...etc Cross platform, easy updates, accessible anywhere Internet required, browser limitations, security concerns php,Node.js,JavaScript, html, css, react, mysql

Mobile Applications

Applications designed specifically for smartphones and tablets. Can be native (iOS/Android), hybrid, or progressive web apps(PWA).

  1. Native Apps - Built for specific OS(Swift/Kotlin) , best performance

  2. Hybrid Apps - Cross platform(React Native, Flutter) one codebase, run many platform.

  3. PWA - Web apps that behave like native apps offline

  4. Examples - INS, Grab, GCash, Tiktok, LALAMOVE, etc

Cloud Applications

Applications hosted on cloud infrastructure(AWS, Azure, GCP), Users access them via internet. Highly scalable and accessible from anywhere

  1. SaaS - Software as a Service , ready to use apps (Office 365, salesforce)

  2. Advantages - Scalable, cost-effective, automatic updates, high availability

  3. Examples - Google Workspace, Dropbox, Slack, Zoom, Canva

  4. Key Benefit - Pay only for what you use , no expensive hardware needed.

Technologies shaping the future of application development

  1. Artificial Intelligence

  2. Cloud Computing

  3. Internet of Things(IoT)

  4. Blockchain

  5. Low-Code / No-Code

Artificial Intelligence in Development

  1. Generation Code - GitHub Copilot, ChatGPT, and Claude can write and suggest code

  2. Automated Testing - AI tools detect bugs and generate test cases automatically

  3. Digital content generation

  4. Natural Language - Voice assistants and NLP-powered interfa

  5. Predictive Analytics - Forecast user behavior and system per

  6. AI - Powered IDEs - Intelligent code completion and error detection

  1. Serverless Computing - Run code without managing servers

  2. Edge Computing - Process data closer to users for lover latency

  3. Cloud-Native Apps - Built specifically to take advantage of cloud capabilities

  4. Multi-Cloud Strategy - Use multiple cloud providers for flexibility ad risk reduction

  5. Containerization - Docker & Kubernetes for portable, scalable applications

  6. Cost Optimization - Auto scaling and pay-as-you-go models reduce expenses

Internet of Things (IoT)

IoT connects everyday devices to the internet, enabling them to collect and exchange data , this creates opportunities for smart applications in homes, cities, healthcare, and industry.

  1. Smart home - Light, thermostats, security cameras

  2. Healthcare - Wearables, remote patient monitoring

  3. Agriculture - Soil sensors, automated irrigation

  4. Industry 4.0 - Predictive maintenance, smart factories

Blockchain Technology

A decentralized, immutable digital ledger that records transactions across many computers. Originally created for cryptocurrencies, it is now used for secure data sharing, supply chain, and digital identily.

  1. Decentralized - No single point of control of failure

  2. Immutable - once recorded, data cannot be changed

  3. Transparent - All participants can view the ledger

  4. Secure - Cryptography protects against fraud

Low -Code / No - Code Platforms

Platforms that allow users to build applications with minimal or no traditional coding. They use visual interfaces, drag-and-drop components, and pre-built templates.

  1. Faster Development - Build apps in days instead of months

  2. Citizen Developers - Business users can create solutions

  3. Lower Cost - Reduce dependency on specialized developers

  4. Examples - MS Power Apps. Bubble, OutSystems, Mendix

4.0 Web Development Framework

Laravel

  • Modern PHP framework . Elegant syntax, built-in security, MVC architecture, and powerful tools for rapid web development.

MySQL

  • Open-source relational database, Reliable, fast, and widely used with PHP for storing application data securely

PHP

  • Server-side scripting language widely used for web development. Powers Wordpress, Facebook, etc