SDLC
Software Development Life Cycle

SDLC
1. Overview

What is?

SDLC (Software development Life Cycle)

Is a framework that supports all the software development process stages.

7 Phases

SDLC is related with 7 phases of process well known.

This is essential for the project administrator, to accomplish all the management tasks of software design and development.

7 Phases

https://ncube.com/blog/software-development-life-cycle-guide

Software Industrie

SDLC process is used by the software industry to design, develop and test high quality software.

It aims to produce the quality software that meets or exceeds customer expectations, reaches completion within time and budget.

Standards

ISO/IEC 12207:2008 establishes a common framework for software life cycle processes, with well-defined terminology, that can be referenced by the software industry.

PROCESSES

ACTIVITIES

TASKS

SDLC
2. Stages

STAGES

1. Ideation or project start

STAGES

2. Requirements analysis

Is the most important and fundamental stage in SDLC.

It is performed by the senior members of the team with inputs from all the stakeholders and domain experts.

STAGES

2. Requirements analysis

Business Requirements
Stakeholder Requirements
Solution Requirements
- Functional
- Non-functional
Transition requeriments

STAGES

3. Design

STAGES

3. Design

This stage involves the design of the entire system and its elements.

High-level design (HLD)
- Plan of the system
Low-level design (LLD)
- Components

STAGES

3. Design: HLD

Description of elements of the system and how they interact.
Summary table that contains general information about the main stages of work necessary for the implementation of the project
Contains information about technologies, risks and failure/recovery plan.

STAGES

3. Design: LLD

Description of the layout and connection of equipment
Description of software module installation schemes
Specifications of the operating modes of individual components of the system

Designing software, engineers use proven patterns to solve technical problems with algorithms. A software architect is familiar with most of the patterns and can recommend the most suitable one.

STAGES

4. Development:

STAGES

4. Development:

Developers have to follow the code guidelines and programming stuff using IDES, Frameworks selected by their organization.
Using the design document, programmers code the modules.
The coding task are divided between the team members according to their area specialization.
- Front-End
- Back-End
- Database administrators

STAGES

5. Testing:

After/During development team's work, there's a team responsible of Quality assurance.
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
This stage refers to the testing only that stage of the software where defects are reported, tracked, fixed and retested, until software reaches the quality standards required.

STAGES

6. Deployment :