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The Rapid Application Development (RAD) paradigm is a software development method that relies on prototyping rather than detailed design. It should be utilised when a system that can be modularized in two to THREE months is required. It should be EMPLOYED if there is a large number of designers available for modelling and the budget allows for their COSTS as well as the costs of automated CODE generation technologies.

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• Quality ASSURANCE ENSURES that the software delivered has the FEWEST POSSIBLE defects. Quality Control is the process of ENSURING that a product's quality is maintained over time.
• Quality Assurance is handled by the project's testing team, whereas Quality Control is handled by a dedicated support team that is accountable for the product's quality even if it is in the maintenance phase of software engineering.

It MAINLY OFFERS a mini-model of the PROPOSED SYSTEM.

Following environments is used while following SDLC:

• Dev: A development environment is a workspace where developers may make changes without damaging anything in a live environment. The development environment is FREQUENTLY referred to as a workspace for developers.
• SIT/QA: System Integration Testing/ Quality Analysis: In a QA environment, you test your update operation against DATA, HARDWARE, and software that closely resembles the production environment, and you allow intended users to test the outcome.
• UAT: User Acceptance Testing: User acceptance testing (UAT) environments, also known as staging environments, let the application's primary users try out new features before they're deployed into production.
• PROD: The "Production" environment, sometimes known as "Live" is where real customers/users interact with the software product.

• Jira: This software is intended to make WORKFLOW management easier for a wide range of groups. Jira was created with the intention of being a simple system for recording tasks and errors. However, it has since matured into a robust workflow management solution.
• Git is a DISTRIBUTED VERSION management system that is open-source. Developers aiming to examine changes and contributions to the overall code might considerably BENEFIT from a version control system or VCS. This software customisation management tool is an important part of the SDLC.
• Confluence: During this stage, Confluence is a wonderful tool for developing product research docs and sharing design assets.
• Asana: From daily activities to larger projects, Asana assists teams in orchestrating their work. Teams are more confident, move faster, and accomplish more with less when they use Asana, regardless of where they are based.

The process of tracking and regulating changes that occur during the software development lifecycle is KNOWN as software configuration management. Any modification made during the development of software must be tracked using a well-defined and controlled process. Any modifications performed during software development are REGULATED through a well-defined process, thanks to configuration management. REVISION control and the establishment of baselines are two SCM PROCEDURES.

The Software Project Manager is in charge of seeing the project through to completion. The Software Project Manager is responsible for ENSURING that the entire team follows a METHODICAL and well-defined approach to software DEVELOPMENT. They also handle project PLANNING, TRACKING project status, resource management, and risk management.

Obstacles or challenges that the scrum team faces slow down their work speed are referred to as impediments. An obstacle is anything that tries to prevent the scrum team from getting work "DONE." Impediments can take many different forms. Some of the roadblocks include resource shortages or sick team members, TECHNICAL, OPERATIONAL, and organisational issues, a lack of MANAGEMENT support SYSTEMS, and business issues.

SCRUM is an AGILE DEVELOPMENT approach based on iterative and incremental procedures that are used in the creation of software. It's an agile structure that's adaptable, rapid, flexible, and excellent at delivering value to customers throughout the project's development. COMPANIES of all sizes employ the Agile Scrum technique because of its ABILITY to provide high-end cooperation and efficiency for project-based work. Scrum is a sort of agile approach that breaks projects down into manageable parts known as "sprints." The Agile Scrum methodology is ideal for companies who need to complete projects fast.

Following are the five Capability Maturity Model Levels:

• Initial: The first step is to create an unstable process environment. The software development process is considered haphazard and even chaotic at times. There are few methods that have been specified, and success is based on individual effort and heroism.
• Repeatable: Work is planned and monitored, making it repeatable. To track cost, schedule, and functionality, BASIC project management techniques are implemented.
• Defined: This level encompasses written and defined standards that evolve over time and support consistent performance. The work is well defined at this point.
• Managed: EXTENSIVE data on the software development process and product quality are gathered. Both the software development process and the END products are quantified and managed.
• Optimized: Work is based on continuous improvement (OPTIMIZATION). The focus on continuously IMPROVING process performance is a significant feature of this level.

The Capability MATURITY Model (CMM) is a cross-discipline and TECHNICAL paradigm for facilitating and refining software development processes and system improvement. This methodology is at the HEART of most management SYSTEMS that aim to improve the quality of all product and service development and delivery.

CONTEXT Diagram is ANOTHER name for DFD LEVEL 0. It's a high-level overview of the entire system or process that's being STUDIED or modelled. It's meant to be a quick peek into the system, displaying it as a single high-level process with its CONNECTIONS to external entities. Stakeholders, business analysts, data analysts, and developers should all be able to understand it readily.

The DDLC (DOCUMENTATION Development Life Cycle) is a software documentation development life cycle used by TECHNICAL documenters to PREPARE software documentation. The life cycle is followed in tandem with the SDLC, as testers and developers work on the programme at the same time. Because the documentation requires input and feedback from the various phases of the SDLC, the DDLC has stages that are COMPARABLE to the SDLC.

There are four types of PROTOTYPING models:

• RAPID THROWAWAY prototypes.
• Evolutionary PROTOTYPE.
• Incremental prototype.
• Extreme prototype.

Building software APPLICATION prototypes that display the capabilities of the product under development, but may not have the exact logic of the original software, is referred to as software PROTOTYPING. It's built, tested, and revised until it's deemed suitable as a prototype. It ALSO serves as a foundation for the final system or programme. It's best used in situations where the project's requirements aren't fully UNDERSTOOD. Software prototyping is gaining POPULARITY as a software development strategy because it allows for an early understanding of customer requirements.

This document CAPTURES the user's voice from the OUTSIDE, or the end user's perspective. A Business System Analyst creates it (BSA). This PAPER demonstrates how a system will react when a user interacts with it in order to meet the BRD and SRD standards. The key area of interest for software experts is the Functional Requirement Specification (FRS). An FRS is useful for software testers to learn the situations in which the PRODUCT is intended to be tested, just as it is for developers to understand what product they are planning to produce. An FRS's ultimate purpose is to meet all of the requirements OUTLINED in the SRS and BRS regulations.

The SOFTWARE Development Life Cycle (SDLC) release PHASE is historically connected with production, deployment, and post-production operations, which generally INCLUDE software maintenance and SUPPORT. So, release management is the PROCESS of managing, planning, scheduling, and controlling a full software development at every stage and environment, including testing and releasing software releases.

JAD is a strategy for defining business system requirements that are commonly utilised in the EARLY phases of a SYSTEMS DEVELOPMENT project. JAD's goal is to bring MIS and end-users together in a structured workshop setting in order to extract outcome system needs. It allows clients and developers to swiftly agree on a project's FUNDAMENTAL scope, objectives, and specifications.