Steps In The System Development Life Cycle



Reasons are given for the selection and additional questions are asked, if necessary. This exercise gives the students a real-world look at application software through the lens of the SDLC. Of the approximately 25 users, half were trained the first week and the rest the next. Clinicians had to perform a live visit with one of their patients using the new system. Thus they would already have experience with it in a hands-on environment before switching to the new product and committing to it on a full-time basis. The chosen software package must have an entryway for the attending, resident, or primary caregiver physician to interact with the system in a seamless fashion. Such a gateway will facilitate efficient patient care by enabling the physician to have immediate access to critical patient data and history.

Such an exercise enables students to engage in what Houghton and Ruth call “deep learning”. They note that such an approach is much more appropriate when the learning material presented involves going beyond simple facts and into what lies below the surface (p. 91). Indeed, this particular exercise for the SAD students was not rote memorization of facts at a surface level; it forced them to perform critical thinking and analysis at a much greater depth of understanding. This was the first, and one of the most important requirements, at least from a technological viewpoint. MEDITECH (Medical Information Technology, Inc.) has been a leading software vendor in the health care informatics industry for 40 years (“About Meditech”, 2009). It is the flagship product used at General Hospital and is described as the number one health care vendor in the United States with approximately 25% market share (“International News”, 2006).

steps in the system development life cycle

Our red team models how a real-world adversary might attack a system, and how that system would hold up under attack. Leverage advanced vulnerability remediation guidance, open source license information and policy controls to eliminate open source risk in applications and containers.

What Is The Software Development Life Cycle?

The paper can be used as a pedagogical tool in a systems analysis and design course, or in an upper-division or graduate course as a case study of the implementation of the SDLC in practice. First, a review of the SDLC is provided, followed by a description of the case study environment. Following, inferences and observations from the project are presented, along with lessons learned. Finally, the paper concludes with implications for the three areas of research, practice, and pedagogy, as well as suggestions for future research. In this stage of work, the software is operationalized to ensure there are no issues or incidents related to the deployment. This stage of work can involve reviewing, understanding, and monitoring network settings, infrastructure configurations, and performance of application services in production. This process can involve incident resolution or management in the course of any issues or changes made to impact a customer or user base.

  • Not every project will require that the phases be subsequently executed and may be tailored to accommodate the unique aspects of a projects.
  • The detail design and development is responsible for producing the product, process and material specifications and may result in substantial changes to the development specification.
  • The SDLC offers perspective into the distinct work phases needed to produce software.
  • Application design – designing the software that will make it possible to use and process a database.

These could include the overall system performance, user experience, new security vulnerabilities, an analysis of bugs or errors in the system. The testing team evaluates the developed product in order to assess whether they meet the requirements specified in the ‘planning’ phase. Expectations are clearly defined during this stage as well; the team determines not only what is desired in the software, but also what is NOT. The tangible deliverables produced from this phase include project plans, estimated costs, projected schedules, and procurement needs. With the passage of time, design and prototyping are becoming one of the most crucial factors for software solutions.

” This phase of the SDLC starts by turning the software specifications into a design plan called the Design Specification. All stakeholders then review this plan and offer feedback and suggestions. It’s crucial to have a plan for collecting and incorporating stakeholder input into this document. Failure at this stage will almost certainly result in cost overruns at best and the total collapse of the project at worst.

The Seven Phases Of The System

Accelerate and scale application security testing with on-demand resources and expertise when you lack the resources or skills to achieve your risk management goals. Nowadays, Software Maintenance has become an important factor of the product life-cycle. But this domain is usually outside the software development life cycle as the product is already being used by the end-customers. This is the crux of the software development life cycle where the actual development or coding of the product takes place. There are a few languages and platforms that are popular for this purpose.

steps in the system development life cycle

The SDLC keeps development on track by breaking down the process into a handful of manageable parts, done one after the other. Ensuring all stakeholders have a chance to give their input in the early stages of development. Developers have a clear understanding of the objectives they must achieve and the deliverables they must complete within a certain time frame, reducing the risk of wasting time and money. At the start of development, there was no idea how the final product would look. This method results in several release cycles, during which each iteration is tested, bugs are resolved, and input from stakeholders is gathered. It entails iterative development, constant improvement, and adaptability in the face of change. Gathering all of the specific details required for a new system, as well as defining the first prototype concepts, is part of the analysis step.


Almost two decades later, a book by the same set of authors in general also advocated an eight step series of phases, although the names of the stages changed somewhat . It is interesting to note that nearly 20 years later, the naming conventions used in the newer text are almost synonymous with those in the older work. The Whitten and Bentley text, in its present form, still breaks up the process into eight stages. SDLC is also an abbreviation for Synchronous Data Link Control and software development life cycle.

steps in the system development life cycle

The following diagram describes three key areas that will be addressed in the WBS in a manner established by the project manager. The diagram shows coverage spans numerous phases of the SDLC but the associated MCD has a subset of primary mappings to the SDLC phases. For example, Analysis and Design is primarily performed as part of the Acquisition and Implementation Domain and System Build and Prototype is primarily performed as part of delivery and support. Iteration is what is system development life cycle’s greatest advantage, enabling faster development of systems by moving ahead with development without requiring full specifications upfront. Additional specifications can be introduced as the development process is repeated, producing new versions of the system at the end of each iteration.

What Is System Development Life Cycle?

Defensics- Identify defects and zero-day vulnerabilities in services and protocols. Defensics is a comprehensive, versatile, automated black box fuzzer that enables organizations to efficiently and effectively discover and remediatesecurity weaknessesin software. Maturity Action Plan – Get recommendations establish or improve your software security stance.

Newer approaches to the SDLC have emerged as DevOps, a combination of philosophies and practices that increase an organization’s ability to deliver applications more quickly. As SDLC methods shift more toward a DevOps SDLC, consideration of the role security plays must also be addressed. Security is no longer a separate and compartmentalized step in the SDLC-in order to guarantee secure software, produced at the speed of DevOps, security is now being viewed as a critical component throughout the SDLC. Development and operations are merging into a DevOps capability, as the boundaries between disparate teams has been slowly dissolving in favor of a streamlined and synchronized approach to development. Integrate Black Duck into bug and issue trackers to enable developers to track and manage open source issues found both in the test and release phases. Synopsys Web Scanner – Dynamic analysis evaluates an application while executing it to uncover issues with its runtime behavior.

The feasibility study is used to determine if the project should get the go-ahead. If the project is to proceed, the feasibility study will produce a project plan and budget estimates for the future stages of development. Managed Services- Synopsys Managed Application Security Testing offers the solution for applying AppSec testing effectively across your full application portfolio.

The Sdlc In Action

The system is developed with the help of a fixed process and it can create rigidity in the process. It should be used in a project where the needs and requirements of the users are clearly stated. The waterfall software development model is the most primitive approach for software development. It starts with specifying and analyzing requirements, designing the application, implementing the code followed by unit testing on developers’ end, integration and system testing and finally maintenance and operation phase. This is a combination of incremental and iterative models with more of a focus on customer satisfaction and adaptability. In this model, the development process is divided into incremental sections in iterations. In every iteration, cross-functional units work on areas such as planning, requirement analysis, design, coding, and testing.

A database system is an integral component of a big organization’s IT system. The database development life cycle involves planning, designing, implementing, and maintaining a database system so it would fulfill an enterprise’s functional requirements. It is closely connected to a system development life cycle; the database development process begins right at the Requirements phase of an SDLC. This paper describes the use of the SDLC in a real-world heath care setting involving a principle component of a regional hospital care facility.

The system is modified by the addition of hardware and software and by other events. Early program testing efforts for the Joint Strike Fighter reflect a significant shift in capability delivery from hardware-based systems to software-oriented functionality. Systems engineers must prove that the final system satisfies each system requirement.

Several systems development frameworks have been partly based on SDLC, such as the structured systems analysis and design method produced for the UK government Office of Government Commerce in the 1980s. The output of this phase is the development of IT infrastructure and the development of database and code. As the software is developed as quickly as possible, it also involves business stakeholders and suggestions from various teams to ensure that everyone’s expectations are met. The output of this phase is the software that goes to the testing phase before the final deployment. This life cycle provides an effective plan for various activities in software development such as designing, building , and maintaining software applications. It also provides a methodology for enhancing the quality of software applications in an organization.

The product life cycle describes the process for building information systems in a very deliberate, structured and methodical way, reiterating each stage of the product’s life. Systems development life cycle phases include planning, system analysis, system design, development, implementation, integration and testing, and operations and maintenance.

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