...SYSTEMS DESIGN, IMPLEMENTATION AND OPERATION In chapter 18 we focused on the first phase of the Systems Development Life Cycle – Systems Analysis. Chapter 20 deals with the remaining four phases: - conceptual systems design - physical systems design - systems implementation and conversion - operation and maintenance CONCEPTUAL SYSTEMS DESIGN In the conceptual systems design phase, the developer creates a general framework for implementing user requirements and solving problems identified in the analysis phase. As shown in Figure 20-1 on page 747 HC (page 637 SC), there are three main steps in conceptual design: 1. evaluating design alternatives, 2. preparing design specifications, and 3. preparing the conceptual systems design report. [pic] Evaluate Design Alternatives There are many ways to design an AIS, so accountants and others involved in systems design must continually make design decisions. [pic] The design team should identify a variety of design alternatives and evaluate each with respect to the following standards: 1) how well it meets organizational and system objectives, 2) how well it meets user needs, 3) whether it is economically feasible, and 4) what its advantages and disadvantages are. The steering committee evaluates the alternatives. Table 20-1 on page 748 HC (page 638 SC) presents examples of conceptual and physical design considerations and their corresponding design alternatives...
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... Activities/Tasks: Figure 7.3 – This figure list the activities/tasks that must be completed to produce each deliverable. Resource Assignments: IT Project Manager The Project Manager is in charge of the workflow of the entire project. The role of the Project Manager comprises of tasks in every facet and phase of the project and is responsible for the final two steps of the project. In addition to these roles, the Project Manager also works directly with the client and project sponsor to ensure the project progresses as planned and that the needs of the client are met. Database Specialist The Database Specialist is responsible for planning, implementing, and maintaining the system’s physical database. Participates in the Conceptualization step by...
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...patents. Now a global plastics manufacturer, Riordan Manufacturing employs 550 people and the annual earnings are projected around $46 million. The company’s global operations include the corporate headquarters in San Jose California, the Plastic Bottles Facility in Albany Georgia, the Custom Plastics location in Pontiac, Michigan, and the Electric Fan Facility located in Hangzhou, China. The COO of Riordan Manufacturing, Hugh McCauley has initiated a service request. This request is labeled SR-rm-022. The purpose of this request is to integrate a variety of the human resource tools into a single application. This document is to addresses the planning and analysis phase of a service request. The request is to encompass all plant locations. Design methods will be established to meet this request, requirements will be collected, the project scope and feasibility will be recognized, the stakeholders will be identified, and key factors to guarantee success in gathering information will be clarified. Project Scope The project scope is for a new system for the human resource department. The new human resource systems purpose is to take advantage of the more sophisticated, state of the art, information systems technology. It is extremely important that the scope be identified during initiation of the project as it guides the feasibility study and requirements. The boundaries of the project are identified by the scope of a project. The following must be identified while defining the...
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...The database development Process Vamsinadh Machavarapu IST 7000 Wilmington University Table Of Contents Introduction...........................................................................................3 SDLC Phases.........................................................................................3 • Requirements Analysis...................................................................4 • Database Design.............................................................................4 • Evaluation and Selection................................................................5 • Logical Database design................................................................5 • Physical Database design...............................................................6 • Implementation..............................................................................6 • Data Loading.................................................................................7 • Testing and Performance Tuning...................................................7 • Operation.......................................................................................7 • Maintenance...................................................................................8 Conclusion.............................................................................................8 References.......................................................................................
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...Pre-Requisite: Completion of 1st Year Courses Introduction: Systems Design is a central part of systems development. It comprises the process of turning a set of user requirements into an implementable system and encompasses various activities to achieve this end. Alternative models are challenging the traditional systems development life cycle. Alongside this, two approaches to systems development are emerging: the traditional structured approach; and the object oriented approach. The systems design activity will be studied in the context of these trends. Students should make themselves familiar with at least one traditional approach (e.g. SSADM) and one object oriented approach (e.g. UML). Aims: To understand the role of systems design within various systems development life cycles To develop awareness of the different approaches that may be taken to systems design To understand and apply the tools and techniques that are currently used by systems designers Formatted: Superscript Objectives: Describe different life cycle models and explain the contribution of systems design within them Discuss various systems development approaches and explain their strengths and weaknesses 1 30/09/1123/09/10 Evaluate the tools and techniques that may be used by a system designer in a given context Use appropriate methods to produce a system design for a given scenario Provide suitable systems documentation for a design Discuss the CASE tools currently available Content: Week...
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...5.3 Design Phase IP address? Software hardware use? Design phase is the most important and analytical phase. The network design is developed based on the technical and business requirements obtained from the planning phases. The network design specification is a comprehensive detailed design that meets current business and technical requirements. It provides high availability, reliability, security, scalability, and performance. The design includes physical, logical network diagrams and an equipment list. The project plan is updated with more specific and detailed information for implementation. 5.3.1 Network Topology Design After everything have been detailed in the plan phase, I proceed to design them according to the paperwork or project plan. During this stage, I have design the topology for the new office which meet the requirement and criteria stated. Both physical and logical diagram are being created in this phase. The application or software that I used to design the topology is Creately.com and Packet Tracer 7.0. Creately.com is an online application that provides user to draw UML diagram, flowchart, network diagram and many more. The reason that I used this online application is it is free and easy to use instead of I need to draw by myself for the physical topology. Figure 4 - Creately Homepage GUI Figure 5 - Cisco...
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...Wireless LAN-Design & Implementation Analysis) In this document, I will endeavor to provide a written analysis concerning the design and implementation of a wireless LAN (WLAN) for a firm comprised of one hundred employees. In illustration of the WLAN design, I will make reference to several sources regarding any related content that I’ve found to be pertinent and of practical benefit to this document’s purposes, not least of which is “ Top-Down Network Design ”, by Priscilla Oppenheimer, an instructional text detailing a method of network design that’s based upon what can be readily found evident throughout the overall networking community to be the most logical and efficient sequence of steps necessary in the creation of a network. Having stated this, it is of value for the reader to know that the aforementioned sequence of steps, as examined in Oppenheimer’s work, will correspond closely to the order of WLAN design and management issues that are addressed in this document, and can be followed up by way of documentation found under the same title and author at the end of this article. The major design and management issues found unique to a WLAN involve those pertaining specifically to the transmission and reception of radio frequency (RF) waves. For example, there is the strategic placement of access points (AP), which are devices designed to send and receive radio signals between nodes. This, in turn leads to a consideration of any possibility of physical materials that...
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...include systems planning and selection, systems analysis, system design, and system implementation and operation. The first phase is system planning and selection, which identifies the need for building information systems. This phase also covers the scope, cost, and schedule of building information systems. The second phase is the systems analysis phase, which is the actual study of the current procedures and the requirements needed. The third phase is system design, which is broken into two parts called the logical design and physical design. The logical design concentrates on the business aspect of the system, whereas the physical design pertains to the technical specifications. Finally, the fourth phase is the system implementation and operation phase. This phase implements the system by installing the hardware or software of the system. Other forms of implementation include programming, user training, and documentation. 2. If someone at a party asked me what a business/systems analyst was and why anyone would want to be one, I would first explain what a business/systems analyst is. I would tell them that a business analyst studies the problems and needs of an organization and determines the best approach to solving those needs. I would also tell them it is a job worth wanting because it is one of the best technology jobs in the field today. 3. It is important to use systems analysis and design methodologies when building a system because you need to understand...
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...to document what the system needs to do. This is a very important phase in the systems development life because a mistake in this phase could mean that you end up building a system that doesn’t create the desired outcome. Systems Design – With the system requirements developed in the systems analysis phase, we begin to design the system by developing a logical and a physical system design. The logical system design document will list the systems functionality and the physical design system will list the components that will be used to achieve the required functionality. Development – The goal of this phase is to determine if existing systems can be used to meet the system design and functionality. If those systems are not capable, then development of a new system will take place. Testing – After the system has been either purchased or built, it must be tested to make sure it it has the functionality required and produces the required results. The system must be stub tested, unit tested and then the final systems test can performed, which consists of verification and validation. Implementation – Once the system has been successfully tested it can be implemented into the working environment. The first step in the implementation phase is to get all the components of the system up and running, and transfer data from any old system(s) to the new system, or input data into the new system if there was no old system. Then the company must...
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...Creativity, Design, and Innovation Emmanuel Prude OI/ 361 August 19th, 2013 University of Phoenix JOHN SOLTYS Creativity Creativity is essential to the process of design and innovation. Any idea thought of is just one of many until creativity is applied, making that idea unique. Creativity is associated with critical thinking, brainstorming, and even the cognitive process which involves recognition, reason, and understanding. Creativity can happen in a number of ways; rather it is taught, encouraged, or an act of random causality. Innovation Innovation is mainly defined as the act of creative thinking. Innovation is developing an idea, taking it from the mind and turning it into a physical form of a process, system, product, or service. Innovation is a new found way to solve a problem. In an organization, innovation can be used in many ways. Rather its upgrade a systematic way of processing or coming up with a new product to sell, innovation has been used to bring it all together. When thinking of innovation, there are two components to consider, one being creativity (as previously explained), and the other is implementation. Implementation is mainly turning ideas into process. Coming up with an idea, developing that idea, and then commercializing that idea are all processes that falls under implementation. Design Design is the process of which creativity is transformed through innovation into its physical form. Design deals with everyday things and makes them...
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...Chapter 7 1. A process by which organizations select objectives, establish processes to achieve objectives, and monitor performance is |a. |enterprise risk management | |b. |internal control | |c. |organizational governance | |d. |risk assessment | ANS: C 2. A process, effected by an entity’s board of directors, management and other personnel, applied in strategy setting and across the enterprise, designed to identify potential events that may effect the entity, and manage risk to be within its risk appetite, to provide reasonable assurance regarding the achievement of entity objectives. |a. |enterprise risk management | |b. |internal control | |c. |organizational governance | |d. |risk assessment |...
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...Name: Michell Angel M. Bangcong Discussion Questions #7 IT 193 - Systems Analysis & Design Chapter 7: Development Strategies 1. Describe the trend that views software as a service rather than a product. What effect has this trend had on software acquisition options? * The concept of software as a service is redefining the way that companies develop and deploy their information systems. People in various companies expect traditional packaged applications to be replaced by web-based services that remove the responsibility for installation, maintenance, and upgrades from a company’s in-house staff. https://www.coursehero.com/file/8417844/Chapter7-ReviewQuestions/ 2. Explain the difference between horizontal application software and vertical application software. * A software package that can be used by many different types of organizations is called a horizontal application. An accounting package is a good example of a horizontal application because it can be utilized by many different businesses. In contrast, a software package developed to handle information requirements for a specific type of business is called a vertical application. https://www.coursehero.com/file/8417844/Chapter7-ReviewQuestions/ 3. What is the most common reason for a company to develop its own information system? Give two other options why a company might choose the in-house approach. * In addition to numerous outsourcing options, a company can choose...
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...As a member of an IT team, your overarching goal is to ensure that the IT systems ultimately do what the business needs them to do. In this course, you have learned about the key principles and practices underlying the analysis, design, implementation, and management of IT systems. In this final project, you will apply this knowledge by creating a systems proposal document. The project is divided into four milestones, which will be submitted at various points throughout the course to scaffold learning and ensure quality final submissions. These milestones will be submitted in Module Two, Module Four, Module Six, and Module Eight. The final submission will occur in Module Nine. In this assignment, you will demonstrate your mastery of the following course outcomes: Assess the relationship of systems analysis, design, implementation, and development processes as they relate to the management of information technology systems Communicate the paradigms, processes, and activities of systems development to diverse audiences Apply structure and object oriented analysis modeling techniques to analyze, design, and manage information technology systems Construct written and visual representations of the analysis, design, implementation, and management of information technology systems based on the systems development life cycle Prompt You will select your own case study and will apply the content provided, describing the business process to complete the final...
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...information-gathering sessions Prepare logical data model Prepare logical process model Physical design Prepare physical data model Prepare physical process model Online system Prepare detailed design Program and unit test Document Batch system Prepare detailed design Batch update facility Program and unit test Document Reporting system Program and unit test Document Integration Prepare integration plan System integration and test Integrate batch update and reporting system Conduct systems test on batch systems Integrate batch and online systems Conduct systems test on complete system Prepare user documentation Customer Conduct milestone reviews Review and approve deliverables Conduct user training Acceptance testing Page 1 Printed on: January 27, 2010 SAMPLE WORK BREAKDOWN STRUCTURES VARIOUS TYPES OF PROJECT Prepare acceptance tests Conduct acceptance tests Prepare revisions from acceptance tests Hand over to customer Implementation Prepare implementation plan Provide support for implementation Conduct post-implementation review Page 2 Printed on: January 27, 2010 SAMPLE WORK BREAKDOWN STRUCTURES VARIOUS TYPES OF PROJECT IT Facilities Move Project Sample WBS Management and support Provide project management Provide quality control Conduct meetings and reviews Materials and supplies Travel and living Miscellaneous costs Consulting fees and subcontractor costs Contingency Physical Facilities Planning Define move strategy Prepare interim operations plan Move plan Conduct...
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...sessions Prepare logical data model Prepare logical process model Physical design Prepare physical data model Prepare physical process model Online system Prepare detailed design Program and unit test Document Batch system Prepare detailed design Batch update facility Program and unit test Document Reporting system Program and unit test Document Integration Prepare integration plan System integration and test Integrate batch update and reporting system Conduct systems test on batch systems Integrate batch and online systems Conduct systems test on complete system Prepare user documentation Customer Conduct milestone reviews Review and approve deliverables Conduct user training Acceptance testing SAMPLE WORK BREAKDOWN STRUCTURES VARIOUS TYPES OF PROJECT Page 2 Printed on: January 27, 2010 Prepare acceptance tests Conduct acceptance tests Prepare revisions from acceptance tests Hand over to customer Implementation Prepare implementation plan Provide support for implementation Conduct post-implementation review SAMPLE WORK BREAKDOWN STRUCTURES VARIOUS TYPES OF PROJECT Page 3 Printed on: January 27, 2010 IT Facilities Move Project Sample WBS Management and support Provide project management Provide quality control Conduct meetings and reviews Materials and supplies Travel and living Miscellaneous costs Consulting fees and subcontractor costs Contingency Physical...
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