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Abstract
SDLC Model refers to the systematic tasks that get required by system developers to research Philadelphia Eagles Jerseys For Sale , build, launch and maintain an information system. Different SDLC models get applied in different businesses, so as to assist the enterprise in creating a system that will accomplish its business requirements. This paper discusses the four phases in a 4 step SDLC model as well as the seven phases contained in a 7 step SDLC model. The 4 step SDLC model and 7 step model SDLC model has various similarities and differences that get compared in this paper.
鈥?br > Introduction
SDLC Model refers to the systematic tasks that get required by system developers to research, build, launch and maintain an information system. Six common core processes are available in most SDLC models. These entail of identify the problem and acquiring project approval Eagles Jerseys For Sale , planning and monitoring project, discovering and understanding requirements of the user, designing of system components, building, testing and integrating system components Cheap Philadelphia Eagles Jerseys , and deploying solution (Roebuck, 2012). An SDLC model in information systems has several objectives namely, ensures the delivery of high-quality systems, maximizes productivity and offers robust management controls. Each model comprises a set of phases that get arranged systematically.
7 step SDLC Model
Project Initiation (Planning)
The project initiation stage is the first phase of the 7 step SDLC model and entails of determining a solid plan for creating a new system. It defines the system to getting developed, sets the project scope Cheap Eagles Jerseys , and develops the project plan that includes time frames, tasks, and resources. The project scope clearly describes the high-level system requirements. This phase also entails the preparation of the project scope document (that is a written definition of the project scope). The project plan describes the what, when and who questions of software development and includes of the project milestones as well as a project manager.
Requirements definition (analysis)
The requirements definition phase brings together different stakeholders to an organization such as system end users, system developers Cheap Jason Kelce Jersey , and IT specialists. These stakeholders collaborate to understand and identify the business requirements for the new system. The phase involves the gathering of the business requirements for the proposed system. A useful approach to gathering system requirements commonly applied by businesses entails of Joint Application Development (JAD), requirements definition document and sign-off. JAD refers to the activity in which knowledge workers and IT specialists meet to establish and review the business requirements for the system. The activity that prioritizes the business requirements and compiles them in a comprehensive formal document gets known as requirements definition document. Sign-off entails of the approval of all business needs by knowledge workers using their actual signatures (Siddiqi, 2013).
System design
The system design phase comprises of building the technical architecture needed to support the new system such as the design of the technical architecture as well as the system models. The technical architecture specifies the particular hardware, software and telecommunications equipment needed for the system to function efficiently. The final architecture takes into consideration several factors namely the time, cost Cheap Darren Sproles Jersey , technical feasibility, and flexibility. The design of the system model refers to the task of drawing a graphical representation of a design and exists in different kinds namely graphical user interface (GUI), entity relationship diagram, flowcharting, and data flow diagram.
System development
The system development phase entails of coding programs Cheap Malcolm Jenkins Jersey , installing hardware and software, creating databases and deploying the telecommunications equipment. This phase converts the feedback of the system design into an actual system (Valacich, George & Hoffer, 2015).

Testing
The testing phase is a significant step of the 7 step SDLC model and verifies whether the new system is operating efficiently as well as satisfies the demands identified in the requirements definition phase. Testing is critical to system development and must have test plans, and the test conditions should get written (Valacich Cheap Zach Ertz Jersey , George & Hoffer, 2015).
Implementation
Implementation phase involves the installation of the new system in different departments in the business, creating detailed user documentation and training the personnel on how to use the system. Training is essential as it orients the staff to the new system, assists in reducing user errors and ensures that the personnel uses the system effectively to accomplish the business objectives. The user documentation and manual acts as a reference for end users as well as supports them when they encounter difficulties in operating the new system. End users comprise of the current and new employees in business.
Post Implementation and Maintenance
This phase entails of monitoring, updating and supporting end-users of the new system. The primary tasks that take place in this stage are the creation of a help desk to support the system users as well as the provision of an environment to support system changes. Monitoring is vital to a new system as it identifies errors early enough. Maintenance is important to a system so as to ensure that it operates efficiently. This phase gets implemented by the computer guard support team.