The System Development Lyfe Cycle Phases
explanatory Essay
1089 words
The system development life cycle, also know as the SDLC, is the process of designing and developing a system or software to meet certain requirements. (“System development life,”). This cycle involves many different phases, in which the system is planned, analyzed, designed, implemented, and tested. There are five major phases in the system development life cycle: systems planning, systems analysis, systems design, systems implementation, and systems security and support. Each of these phases has a particular responsibility and certain tasks are perfumed in each phase.
The systems planning phase is the first phase completed in the SDLC. It encompasses evaluating the feasibility and the cost of the system, identifying the risks involved with implementing the system, and determining the responsibilities of each of the team members. To begin the planning phase, a systems request is submitted to the IT department, detailing the problems and changes to be made in a system. (Rosenblatt, 2014). It is important to note that the request may be a large, significant request, or it can be a smaller, more minor request; however, each request should be addressed using the systems development life cycle. After the request has been made, a feasibility study is conducted that determines the costs and benefits of the new or improved system. The study then recommends a strategy that is best for the system in terms of technical, monetary, and time factors.
After the systems planning is complete, the next course of action is the systems analysis phase. This phase includes defining the requirements of the system. This means that the team must conclude what the system needs to do in order to satisfy the users. This is done by forming a requirements...
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... and increases the cost to benefit ratio. Although there are many different methods that apply the five phases of the SDLC, information technology professionals must be able to decide which method to use for a particular system so that it will maximize the benefits and create a system that meets user expectations in the most logical manner.
Works Cited
System development life cycle (sdlc) methodologies. (n.d.). Retrieved from http://www.slepi.net/blog/system-development/system-development-life-cycle-sdlc-methodologies.html
Morris, K. (n.d.). Steps in the system development life cycle. Retrieved from http://smallbusiness.chron.com/steps-system-development-life-cycle-43241.html
Rosenblatt, H. (2014). Systems analysis and design. (10th ed.). Boston, MA: Course Technology.
Sdlc rad model. (n.d.). Retrieved from http://www.tutorialspoint.com/sdlc/sdlc_rad_model.htm
In this essay, the author
- Explains that the system development life cycle, also known as the sdlc, is the process of designing and developing a system or software to meet certain requirements.
- Explains that the systems planning phase is the first phase completed in the sdlc. it involves evaluating the feasibility and the cost of the system, identifying the risks involved with implementing it, and determining the responsibilities of each team member.
- Explains the systems analysis phase, which includes defining the requirements of the system and developing a system requirements document.
- Explains that the system development life cycle, also known as the sdlc, is the process of designing and developing a system or software to meet certain requirements.
- Explains that the systems planning phase is the first phase completed in the sdlc. it involves evaluating the feasibility and the cost of the system, identifying the risks involved with implementing it, and determining the responsibilities of each team member.
- Explains the systems analysis phase, which includes defining the requirements of the system and developing a system requirements document.
- Explains that the systems design phase determines how the system will operate, how data will be stored, where to store it, and how it will process.
- Explains that the implementation phase is the phase in which the system is built, tested, and installed.
- Explains that the implementation phase includes converting data to the new systems' files, training users, and performing the actual transition. after completion of this phase, a systems evaluation is created.
- Explains that the systems support and security phase is responsible for maintaining and enhancing the system. changes may need to be made to update new information, such as changing rates.
- Explains the rapid application development model, which focuses less on planning and more on the prototyping of the system.
- Explains that object-oriented analysis follows the system development life cycle more closely than either the rad model or agile methods.
- Explains that the rad process is more similar to agile methods, in the way that they are more focused on prototyping than planning.
- Explains that the system development life cycle is important to understand by information technology professionals because it helps create a system that is easily maintained, reused, and creates the most logical system.
- Cites morris, k., and rosenblatt, h. systems analysis and design.
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1995 wordsRead More - Project Progress Reportsexplanatory essayStair, R. & Reynolds, G. (2003). Fundamentals of Information Systems, Second Edition. [University of Phoenix Custom Edition e-text]. Boston. MA: Course Technology, a division of Thomson Learning, Inc. Retrieved October 1, 2006, from University of Phoenix, Resource, CIS564 ¡V Information Management in Business Course Web site.
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- Opines that the chief nursing officer (cno) should be involved to help understand the implications to the hospital.
- Explains that analysis consists of compiling data on who will use the system, what data will be needed, and what it needs to do for the institution. nursing should be more involved since they are going to be the primary users.
- Explains that the systems development life cycle (sdlc) is the plan of how to develop and maintain software, and when necessary, replace that software.
- Opines that the chief nursing officer (cno) should be involved to help understand the implications to the hospital.
- Explains that analysis consists of compiling data on who will use the system, what data will be needed, and what it needs to do for the institution. nursing should be more involved since they are going to be the primary users.
- Opines that the design phase is where all the input is taken and actual system requirements are initially developed.
- Opines that implementation is the actual coding and creation of software from all the wishes of the company. they do not think nursing needs to be involved in this step.
- Describes how they became involved with st. joseph mercy's "joe’s pros" and developed end user training sessions. they had discussed letting outside trainers come and do the education, but quickly squelched that idea.
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- Explains the purpose of the project management plan to define the approach to be taken by the amp canada case study implementing sap in 1 year time with the vendor – sap business partner.
- Explains that the team implementing the new system were required to do both functional and systematic requirements thus affecting the implementation of the system.
- Explains that the user requirements were not taken into consideration thus affecting the purchasing orders, poor management of inventory, the manufacturing and finance department weren't integrated.
- Explains the purpose of the project management plan to define the approach to be taken by the amp canada case study implementing sap in 1 year time with the vendor – sap business partner.
- Explains that the team implementing the new system were required to do both functional and systematic requirements thus affecting the implementation of the system.
- Explains that the user requirements were not taken into consideration thus affecting the purchasing orders, poor management of inventory, the manufacturing and finance department weren't integrated.
- Explains amp canada implemented sap with optimum within 1 year thus requiring the pmp to include plans for the following areas: communication, procurement, staff, quality and risk.
- States that project procurement management involves acquiring goods and services from outside the performing organisation. the amp canada procurement plan objectives for this project are to:
- Recommends selecting a vendor to migrate the current jba system to sap with the existing business processes.
- Describes the formal agreement that provides amp canada with certainty regarding service level agreements and fixed prices for the chosen implementation.
- Explains that the contractor must complete the service within the established project schedule of 1 year.
- Explains that amp canada will provide a single walkthrough of the jba existing solution to representatives from multiple vendors at the same time.
- Explains that the following table outlines the key project team roles and responsibilities for the project.
- Explains that the project manager is responsible for the day-to-day management of projects and the achievement of agreed/defined project objectives.
- Reports to the project control group on progress and issues/barriers to achieving the projects business objectives.
- Describes the business requirements, business process and application documentation, user acceptance testing, and relevant project documentation.
- Explains that the "business user" is an integral part of the development team. the role provides the key focus for design decisions.
- Explains that the technical lead drives the system design and manages the business requirements translation to a sound application design.
- Explains that the consultant drives business requirements and primarily represents the business user’s goals and objectives.
- Explains liaising with the project manager to ensure requirements gathering are on track with timeframes and deliverables.
- Explains the importance of maintaining business relationships with users and sponsors throughout the life of the project, ensuring requirements are communicated effectively.
- Explains that a developer models and interprets user requirements and converts them into prototypes and deliverable code, using the business requirements documents and user comment as input.
- Explains how they work with business analyst and technical lead to define business requirements, build and test, create prototypes and finished programs as required.
- Explains that the quality assurance analyst is responsible for the testing of the production ready code during the implementation phase for business acceptability against business requirements.
- Explains that carton, adam & sammon suggest quality baselines that ensure quality management of the project (2008). these points have been applied to the case study.
- Explains how sakthivae points out the risk factors which are applied to amp canada to identify risk control factors.
- Explains that managing the scope of a project is the most important function of the project manager. effective scope management ensures the successful management of other key project management areas.
- Explains that effective communication is one of the key aspects of any project. project managers are tasked to ensure that all aspects are communicated to the team in an effective and professional manner.
- Explains that a request for proposal (rfp) will be issued in order to solicit proposals from various sap business partners’ vendors.
- Opines that staffing is one of the major issues with any it project. good technology staffs, especially those with deep experience, are difficult to find.
- Opines that the duration for which sap is implemented does not guarantee it will be beneficial, as projects and project management are exposed to environment whereby requirements are changing along with the business needs.
- Explains that the global component of the project is aimed at providing a band-aid to amp.
2642 wordsRead More - Project Management for Information Systemsexplanatory essay- Sumner, M, 1999, "Critical success factors in enterprise wide information management systems projects", Proceedings of the Americas Conference on Information Systems (AMCIS), 232-4.
In this essay, the author
- Explains that it projects are vulnerable to cutbacks due to the complexity of system design and rapid advances in information technology. project managers must optimize the use of allocated resources to ensure that is projects deliver on time and on budget.
- Explains williams' four steps to systems planning: planning information systems, analysing information requirements, resource allocation, and project planning.
- Explains that a process re-engineering effort driven by one business function or unit will likely encounter resistance from other parts of the organization. both high-level and broad support for change is necessary.
- Explains that it projects are vulnerable to cutbacks due to the complexity of system design and rapid advances in information technology. project managers must optimize the use of allocated resources to ensure that is projects deliver on time and on budget.
- Explains williams' four steps to systems planning: planning information systems, analysing information requirements, resource allocation, and project planning.
- Explains that a process re-engineering effort driven by one business function or unit will likely encounter resistance from other parts of the organization. both high-level and broad support for change is necessary.
- Cites holland, p, light, b, gibson, n, 1999, "a critical success factors model for enterprise resource planning implementation".
- Cites pant, s., ravichandran, t. 2001, "a framework for information systems planning for e-business".
- Explains that information systems projects are vulnerable to resource cutbacks and the complexity of systems and advances in information technology make finding the right personnel difficult. good project management is essential for success.
- Explains that successful project management requires a clear business objective, understanding of the nature of change, and understanding the project risk.
- Explains that project managers may choose to design and build systems using existing is planning models/methodologies.
- Explains earl's five alternate strategy frameworks that project managers should consider when deciding how the system will enhance the business function.
- Explains that business process re-engineering (bpr) is an essential element for many companies who attempt to improve their competitive position in the marketplace.
- Opines that change management is important for project managers and business leaders, starting at the project phase and continuing throughout the entire life cycle.
- Argues that project managers should plan for the development, testing, and troubleshooting of system software, especially at beginning in the project phase.
- Explains the mot model, which depicts information systems as being influenced and shaped by management, organizational and technology factors.
- Explains that project management of information systems projects is increasingly important to successful design and implementation.
- Cites bailey, a., sharma, m.k, godla, j. and charnley, l.
- Cites falkowski, pedigo, smith, b, swanson, d, and hall, g., rosenthal, j.
- Describes the key success factors in erp implementation projects.
3601 wordsRead More - Advantages And Disadvantages Of Object Orientated Programmingexplanatory essayWithin the analysis phase a set of goals are needed within the domain. From this there are three perspectives which are taken; the object model the Ronald LeRoi Burback (1998) states “dynamic model, and a functional model. The object model represents the artifacts of the system. The dynamic model represents the interaction between these artifacts represented as events, states, and transitions. The functional model represents the methods of the system from the perspective of data flow.” After the analysis phase the system design phase takes place. Here the system is sub-categorized and appointed tasks and persistent data storage is established, also within this phase the architecture is formed. Lastly the object design phase starts and is where the implementation plan is established and algorithms and object classes are also
In this essay, the author
- Explains that object-orientated programming is a methodology organized around objects and not actions. it is easier to compare objects.
- Explains that object-oriented programming began in the 1960's and was developed by kristen nygaard and ole-johan dahi in norway.
- Explains the object orientated life cycle, where the user requirements are discovered and an understanding for the systems functions. the object design phase determines the overall architecture of the desired system.
- Explains that object-orientated programming is a methodology organized around objects and not actions. it is easier to compare objects.
- Explains that object-oriented programming began in the 1960's and was developed by kristen nygaard and ole-johan dahi in norway.
- Explains the object orientated life cycle, where the user requirements are discovered and an understanding for the systems functions. the object design phase determines the overall architecture of the desired system.
- Explains object-orientated concepts are the basis and building blocks for its design. classes, objects, abstraction, polymorphism, inheritance, and encapsulation.
- Explains that a software engineering methodology incorporates object-orientated development within its analysis and design.
- Explains that the rational unified process (rup) is an iterative software development process framework created by ibm since 2003.
- Explains that obect orientated programming has many advantages, such as reuseability and improved software-development productivity.
- Explains that zuehlke engineering usdp is the iterative and incremental software engineering process for the uml.
- Explains exforsys' history of object oriented programming, freetutes, ronald leroi burback, and ibm acquires national.
- Explains what is object oriented programming and cory janssen's definition of unified process (up).
962 wordsRead More