What is Systems Development Life Cycle

Because this document determines all future development, the stage cannot be completed until a conceptual design review has determined that the system specification properly addresses the motivating need. SDLC is also an abbreviation https://www.globalcloudteam.com/ for Synchronous Data Link Control and software development life cycle. Software development life cycle is a very similar process to systems development life cycle, but it focuses exclusively on the development life cycle of software.

system development cycle meaning

Having covered the major SDLC methodologies offered by software development companies, let’s now review whether they are actually worth employing. The verification and validation model tends to be resource-intensive and inflexible. For projects with clear requirements where testing is important, it can be useful. The last but not least important stage of the SDLC process is the maintenance stage, where the software is already being used by end-users. The testing stage ensures the application’s features work correctly and coherently and fulfill user objectives and expectations.

Possible Drawbacks of SDLC

In the Software Development Life Cycle, the actual code is written here, and if the system contains hardware, then the implementation phase will contain configuration and fine-tuning for the hardware to meet certain requirements and functions. This phase comes after a complete understanding of system requirements and specifications, it’s the actual construction process after having a complete and illustrated design for the requested system. The System Development Life Cycle encompasses a series of interconnected stages that ensure a systematic approach to system development. The stages include Planning, Analysis, Design, Development, Implementation, and Maintenance.

Create a timeline with milestones and dependencies to track progress, and set up automated alerts to notify you as anything changes. Share your plan with your team and key stakeholders to provide visibility, and assign tasks to individuals to ensure nothing slips through the cracks. The software development life cycle (SDLC) is the process of planning, writing, modifying, and maintaining software. Developers use the methodology as they design and write modern software for computers, cloud deployment, mobile phones, video games, and more. Adhering to the SDLC methodology helps to optimize the final outcome. Hence, the Agile SDLC model has recently become increasingly popular and in demand.

Phase 3: system design

Other steps which may appear include project initiation, functional specifications, detailed specifications, evaluation, end-of-life and other steps that can be created by splitting previous steps apart further. Alternative development paradigms, system development cycle meaning such as rapid application development (RAD), may be suitable for some projects but typically carry limitations and should be considered carefully. The Spiral model best fits large projects where the risk of issues arising is high.

Many organizations tend to spend few efforts on testing while a stronger focus on testing can save them a lot of rework, time, and money. During this stage of the system lifecycle, subsystems that perform the desired system functions are designed and specified in compliance with the system specification. Interfaces between subsystems are defined, as well as overall test and evaluation requirements.[18] At the completion of this stage, a development specification is produced that is sufficient to perform detailed design and development. Relevant questions include whether the newly implemented system meets requirements and achieves project goals, whether the system is usable, reliable/available, properly scaled and fault-tolerant. Process checks include review of timelines and expenses, as well as user acceptance.

Systems analysis and design

This is where shortcomings are officially determined by a system analyst. These shortcomings were probably already present, so a good way to find out about them is interviewing support staff. In the 1960s, mainframe computers hit the consumer market, and living rooms came to be filled with large systems.

system development cycle meaning

With this method, you can create a one-of-a-kind product by incorporating consumer feedback from the very beginning of the development process. The goal of this stage is to define the full extent of the issue and generate potential answers. Costs, benefits, time, money, and so on are all relevant factors to think about. To ensure the overall success of the project, this is the most important stage. In the first stage, the team decides if a new system is necessary to achieve the strategic goals of the company.

The Role of Security in the SDLC

As a rule, these features help to finalize the SRS document as well as create the first prototype of the software to get the overall idea of how it should look like. However, if the customer is unsure about the project’s direction, it could move in the wrong path, as this approach relies significantly on communication with the client. The Systems Development Life Cycle (SDLC) provides a framework for managing the obstacles you’ll face as you go from the project’s inception to its completion. Continues improvement and fixing of the system is essential, Airbrake provides robust bug capturing in your application. In doing so, it notifies you with bugs instantly, allows you to easily review them, tie the bug to an individual piece of code, and trace the cause back to recent changes. With web application security add an extra layer of protection to your application and stop DDoS attacks and data breaches before they even occur.

Training models for hardware and software and training materials are maintained. This phase of system development includes the actual implementation and coding of the system. It includes defining the methodology adopted for system development and other implementation issues. The development of successful systems to solve complex problems is a difficult chore often involving access to multiple technologies each mastered by a different collection of human employees of the development enterprise.


ELink Design aims to produce high quality systems that meet or exceed customer expectations, based on customer requirements, by delivering systems which move through each clearly defined phase, within scheduled time-frames and cost estimates. Agile methodologies, such as Scrum, focus on lightweight processes which allow for rapid changes along the development. ELink Design adheres to important phases that are essential for our developers such as planning, analysis, design and implementation. Our processes are designed to ensure end-state solutions meet user requirements in support of business strategic goals and objectives. In most use cases, a system is an IT technology such as hardware and software.

  • SDLC represents a multitude of complex models used in software development.
  • System development activities are also cascaded, decomposed, and refined.
  • The final phase of the SDLC is to measure the effectiveness of the system and evaluate potential enhancements.
  • The management team may also employ a secure to implement a secure product strategy.
  • Software development teams, for example, deploy a variety of system development life cycle models you may have heard of like waterfall, spiral, and agile processes.

This is an early-stage plan or feasibility analysis for the company to acquire the resources needed to enhance an existing service or construct new infrastructure. The designing of any system, whether hardware or software, can be seen as a repetitive exercise with numerous stages. The SDLC supplies a strict composition and fabrication for defining the stages and steps of a system’s evolution.

System Development Life Cycle Phases (SDLC)

This includes the first system prototype drafts, market research, and an evaluation of competitors. A converged infrastructure definition consists of multiple components operating together as one, such 🖥 as servers, storage, networking, and management software. Big Bang is a high-risk approach that should be avoided for projects of significant size or complexity because of the possibility that the project will need to be restarted if initial needs are misinterpreted. This Software Development Life Cycle approach is common for smaller projects with one or two developers.