...TEXAS DEPARTMENT OF INFORMATION RESOURCES System Development Life Cycle Guide Version 1.1 ● 30 MAY 2008 Texas Project Delivery Framework SYSTEM DEVELOPMENT LIFE CYCLE GUIDE Version History This and other Framework Extension tools are available on Framework Web site. Release Date Description 30-May-2008 Version 1.1 released. Modified all references to “Project Plan and related plans” to “Project Plan” in order to align with Framework 2.0 and Change Request 38. 25-Sep-2007 Version 1.0 – System Development Life Cycle Guide released. DIR Document 25GU-1-1 ii Texas Project Delivery Framework SYSTEM DEVELOPMENT LIFE CYCLE GUIDE Contents Introduction ................................................................................................................................1 Use of the System Development Life Cycle Guide ....................................................................2 Section 1. System Life Cycle Processes...................................................................................3 1.1 Introduction ......................................................................................................3 1.2 System Life Cycle Processes and the Organization ........................................4 Section 2. Development Process ..............................................................................................5 2.1 Introduction ..........................................................................
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...CHAPTER 2 SYSTEM DEVELOPMENT LIFE CYCLE TYPES OF INFORMATION SYSTEM Transaction Processing Systems A transaction processing system provides a way to collect, process, store, display modify or cancel transactions. Most of these systems allow multiple transactions to take place simultaneously. The data that this system collects is usually stored in databases which can be used to produce reports such as billing, wages, inventory summaries, manufacturing schedules, or check registers. Management Information Systems A management information system is an information system that uses the data collected by the transaction processing system and uses this data to create reports in a way that managers can use it to make routine business decisions in response to problems. Some of the reports that this information system creates are summary, exception and ad hoc reports. All this is done to increase the efficiency of managerial activity. Decision Support Systems A decision support system helps make decisions by working and analyzing data that can generate statistical projections and data models. This system gives support rather than replacing a managers judgement while improving the quality of a managers decision. A DSS helps solve problems while using external data. Expert Systems and Neutral Networks An expert system, also known as a knowledge-based system, is a computer system that is designed to analyze data and produce recommendations, diagnosis and decisions that are controlled...
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...SDLC Intro Systems Development Life Cycle, or SDLC, is the entire process of building, deploying, using, and updating an information system (Object-Oriented Analysis and Design with the Unified Process – Satzinger, Jackson, and Burd). It is a conceptual model that is used in project management and describes the stages that are comprised within an information system. One of the oldest models of SDLC is the Waterfall Approach. It is a series of junctures in which the output of each juncture becomes the input for the next. The 7 phases involved in this model are Project Planning, Systems Analysis, Systems Design, Implementation, Integration/Testing, Deployment, and Maintenance. Project Planning establishes the objectives and goals of the intended project. It also determines how to accomplish the project in the best possible way. Systems Analysis filters project goals into well-defined functions and operation of the intended project. This phase analyzes end-user information needs. Systems Design defines desired features and operations in detail. It includes screen layouts, business rules, process diagrams, pseudo code and other documentation. Implementation deals with the actual development of the system where it is built and programmed. Integration/Testing is the phase where the system is put into test. It is checked for errors, bugs, and interoperability. Deployment Phase is the final stage of the initial development. The system is carried out and put into production...
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...INTRODUCTION Life cycle costing is an alternative approach to cost management which accumulates and manages cost over a product’s lie cycle (Adamany & Gonsalves, 1994; Artto, 1994; Susman, 1989). There are two important aspects to life cycle costing which is the focus on the product cost and the inclusion of upstream and downstream costs. Upstream cost is incurred when company prepares to start its production process. These upstream costs can range from raw materials to research and development to product design. Upstream costs can have a significant impact on the efficiency and profitability of the production process. If raw materials are too expensive or if the design of a new product takes too long, the upstream costs can limit a company's potential profits before a single unit becomes available for sale. While downstream cost is incurred after a company has completed its production process, it must still get that product to its customers. The process involved in delivering those products to the customers is the source of the company's downstream costs. These downstream costs can range from distribution expenses to marketing plans to sales channels. Downstream costs also act as a determining factor in the company's profitability. If distribution costs are too high or sales efforts are ineffective, the downstream costs will eat away at expected revenues. The product life cycle is most frequently understood to mean the life cycle of a particular product on the market...
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...What is the Software Development Life Cycle (SDLC)? July 9, 2013 justin in insight The Software Development Life Cycle is a process that ensures good software is built. Each phase in the life cycle has its own process and deliverables that feed into the next phase. There are typically 5 phases starting with the analysis and requirements gathering and ending with the implementation. Let’s look in greater detail at each phase: Requirements Gathering/Analysis This phase is critical to the success of the project. Expectations (whether of a client or your team) need to be fleshed out in great detail and documented. This is an iterative process with much communication taking place between stakeholders, end users and the project team. The following techniques can be used to gather requirements: * Identify and capture stakeholder requirements using customer interviews and surveys. * Build multiple use cases to describe each action that a user will take in the new system. * Prototypes can be built to show the client what the end product will look like. Tools like Omnigraffle, HotGloo and Balsalmiq are great for this part of the process. In a corporate setting, this means taking a look at your customers, figuring out what they want, and then designing what a successful outcome would look like in a new bit of software. Design Technical design requirements are prepared in this phase by lead development staff that can include architects and lead developers. The...
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...Software Development Life Cycle The software development life cycle is the cycle in which software is developed. It is a process that has been improved upon as programming has expanded and become a bigger part of computers and networking. Programming is necessary in order to enable computers to perform in a desired manner, and those computers rely on that programming as instructions in order to function. Since computers rely on their programming to know how to function, the programming needs to be as efficient and flawless as possible, in order to produce ideal results. The software development life cycle is a tool used to help achieve ideal results. The first stage of the software development life cycle is “Analysis”. This stage is comprised of defining what exactly is required of the software being programmed. It is essential to know what the software must do in order for it to be programmed. All of the programming performed on the software falls within the defined specifications of this stage, therefore, this stage is the most critical. If the requirements are incorrect, the program may perform flawlessly, but it will not do exactly what is needed. The next stage in the software development life cycle is “Design”. This stage uses the requirements of the software as stated in the previous stage, and uses those requirements to design the software. This stage includes writing pseudo-code in order to see what your program needs to do, and taking steps to implement...
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...OCM 1.6 - Deployment of an EC Site By Anusha Avutapalli Deployment may refer to: •Deployment flowchart, a process mapping tool used to articulate the steps and stakeholders of a given process . •System deployment, transforming a mechanical, electrical, or computer system from a packaged form to an operational state. •Software deployment, all of the activities that make a software system available for use. Deployment flowchart A deployment flowchart (sometimes referred to as a "cross functional flowchart") is a business process mapping tool used to articulate the steps and stakeholders of a given process. "Deployment flowcharts consist of a sequence of activity steps and also the interactions between individuals or groups." Each participant in the process is displayed on the map (which is constructed as a matrix) - tasks/activity are then articulated in sequence under the column corresponding to that stakeholder. As deployment flowcharts highlight the relationships between stakeholders in addition to the process flow they are especially useful in highlighting areas of inefficiency, duplication or unnecessary processing. Often utilized within Six sigma activity, completed flowcharts are commonly used to examine the interfaces between “participants” which are typically causes for delays and other associated issues. Deployment flowcharts are useful for determining who within an organization is required to implement a process and...
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...activity that can be started by an individual, work team, department, or organization. It works best when the entire organization is geared toward continuous improvement in its daily tasks. Daily Management can be viewed as the application of the PDCA Cycle to daily incremental continuous improvement. In order to be effective at Daily Management, you must: * Know your organization’s vision and mission * Know who your customers are * Know your customers’ needs and expectations * Know your suppliers * Know how to accurately communicate your needs and expectations to your suppliers * Know thoroughly the product or service that your organization delivers to the ultimate user * Know how your job fits into the overall product or service of the organization * Know your job thoroughly * Know your process and all its trifles * Know that you will be rewarded for continuous improvement activities * Know yourself—your strengths, weaknesses, and preferences Integration with Hoshin Planning a) Hoshin Planning is simply PDCA applied to the planning and execution of a few critical (strategic) organization objectives. Hoshin Planning draws information from the ongoing data collection and analysis of the Daily Management process to identify broad system problems in which...
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...Security, Change Management, and Architectural Adaptation Name Professor Institution Course Date 1. Create a list of requirements prior to the deployment of the online course management software along with a description of each. In addition, explain how you would address each requirement. • Identify and understand your deployment audience There are at least three distinct groups of audience which needs to be considered. They include: the end users, the functional staff responsible for running the software once it is in the production of process, and support team who are charged with the responsible of supporting and helping the users with the software once it is in production. Under this level it’s vital to note the control measures to ensure system functions effectively. • Identify your deployment strategy early It’s important to determine the strategy to use in the deployment process. This determining whether the system will be operated in parallel with the existing system or will it be performed a cutover? Running the system in parallel offers the advantage that you can easily back out to the original system if the new one runs into problems. • Installation testing This is vital as some systems might be installed and they bring the other system to a stop. Testing gives an over view of what should be done and preparing for the right installation. • Start preparing early. Software changeover needs to be done with adequate time and with...
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...UNIVERSITY OF LUSAKA NAME: NDULA SICHALWE COURSE: ICT STUDENT NO: BFIN 0512014 PROGRAMME: BANKING AND FINANCE ASSIGNMENT: 1 1.(a) In plain words ‘E-commerce’ is simply Electronic commerce. E-commerce is the buying and selling of goods and services by businesses and consumers through an electronic medium. Below are three models of Electronic commerce; • Business-to-Business(B2B) – In this type electronic commerce, the trade is only between businesses or other organisations. An example of B2B is Cisco. Cisco is a corporation that designs, manufactures and sells networking equipment,. Cisco trades with other businesses and organisations. • Business-to-Consumer(B2C) – This type of electronic commerce involves a business and an individula shopper. Businesses sell goods and products to individual shoppers(Consumer). An example of B2C is Amazon. Amazon is a E-commerce company that deals with online retailing. Sells to consumers. • Consumer-to-Consumer(C2C) – In this model electronic commerce, the trade off is done between consumers directly. An example of C2C is e-bay. E-bay is an E-commerce corporations that enables C2C (b) Internet The Internet is a ‘Network’consisiting of a worlwide interconnection of computer networks that facilitate data transmission and exchange. As organisations grow larger...
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...Disaster Recovery Information Technology: Disaster Recovery Abstract The intent of this research paper is to capture the over view of the systems functionality of disaster recover, what it is and how it works. It will explore the benefits, as well as the disadvantageous of the system, what is most significant about the system. Lastly I will share my own assessment of the system, concluding whether this system had been rendered effective for its purpose. Information Technology: Disaster Recovery Information Technology is extremely crucial in today’s business world. In fact, businesses use information technology too quickly and effectively process information, Carlson 1998. Within these businesses, employees use these advanced technologies in which to communicate. Electronic data interchange is used to transmit data. This serves a purpose of transmitting orders and payments from one company to another. With electric data interchange in mind, servers process an immense amount of data. For a business to be rendered effective, a disaster recovery plan should be develop in correlation with the priorities of the business. As noted, due to the rapid growth technology, planning strategies should be refined overtime to maintain its vigilant awareness to keep up with modern technology. Overview A disaster recovery plan is a process in which to secure intellectual property. Disaster Recovery planning involves procedures to recover, as well as, maintain accountability of a...
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...#1 SSDLC SSDLC is a version of the software development life cycle that focuses on security. It has been found that incorporating security within each phase from the beginning provides quicker time to recovery, less security flaws, quicker time to implementation, and provide a more secure architecture overall. An evaluation of your current processes will determine how to proceed in your security practices. This includes identifying how closely your company adheres to these best practices: Awareness & Training, Assessment & Audit, Development & Quality Assurance, Compliance, Vulnerability response, Metrics & Accountability, and Operational security. To determine how to implement the Security Software Development Life Cycle, there are roughly (depending on scope) 6 phases: Requirements Gathering, Design, Coding, Testing, Deployment, and Maintenance & Retirement. Requirements includes setting up security requirements, phase gates, and risk assessments. Design includes security considerations for design requirements, architecture & design reviews, and threat modeling. Coding includes static analysis performance and coding best practices. Testing includes fuzzing and vulnerability assessments. Deployment includes server and network configuration reviews. And maintenance & retirement includes changes, enhancements, and sunsetting of software. #2 Best practices In order to meet the demands of a challenging development environment, there are a number of best practices that...
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...Cloud Computing Service for all most everything | Submitted To:Dr. Richard EganSubmitted By:Team 2 | Table of Contents Cloud computing 2 Introduction 2 Definition of Cloud Computing 3 Services Models of cloud computing 4 Software as a Service (SaaS): 4 Platform as a Service (PaaS): 5 Infrastructure as a Service (IaaS): 5 Deployment Model of cloud computing 5 Public Cloud: 5 Private Cloud: 6 Community Cloud: 6 Hybrid Cloud: 6 Challenges of cloud computing 7 Benefits 7 Implementation Plan 9 How Does Data Stay Safe in the Cloud? 9 Are your applications ready to run on cloud? 9 Will you able to receive customer support for the service? 10 Client considerations for Best Practices during Implementation and Deployment 10 Implementation Strategy 10 Cloud architecture: 10 Market Analysis 11 Important Questions to be address by management 11 Implementation Cycle 12 References (Author, Year) 14 Cloud computing Introduction Whenever technology changed or company move to new business plan, it costs them and many of these companies cannot afford in current economic environment. And most of the time all the investments are not useful at the same time. They wish to “pay for what they use” services and use their efforts and money in main business to add value to it. So these challenges and expectations cause the born of cloud computing.Cloud Computing provides a simple, economicaland efficient way to access servers, storage, databases and a broad set of application...
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...Grid Energy Storage U.S. Department of Energy December 2013 Acknowledgements We would like to acknowledge the members of the core team dedicated to developing this report on grid energy storage: Imre Gyuk (OE), Mark Johnson (ARPA-E), John Vetrano (Office of Science), Kevin Lynn (EERE), William Parks (OE), Rachna Handa (OE), Landis Kannberg (PNNL), Sean Hearne & Karen Waldrip (SNL), Ralph Braccio (Booz Allen Hamilton). Table of Contents Acknowledgements ...................................................................................................................................... 1 . Executive Summary ....................................................................................................................................... 4 1.0 Introduction .......................................................................................................................................... 7 2.0 State of Energy Storage in US and Abroad .......................................................................................... 11 3.0 Grid Scale Energy Storage Applications .............................................................................................. 20 4.0 Summary of Key Barriers ..................................................................................................................... 30 5.0 Energy Storage Strategic Goals ...............................................
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...Software Development Life Cycle : Software Development life cycle is a process for the software project that describes the phases involved in project. It tells the detailed plan how to develop,maintain,replace and enhance specific software .The life cycle defines a methodology for improving quality of software and overall development process The different phases in software development life cycle are * Planning and requirement analysis * Defining requirements * Design * Building or Developing the product * Testing * Deployment Design : Once the requirements analysis and defining requirements is done next process is Designing the product architecture . Software Requirement specification (SRS) is the reference for the developers to come out with best design to be developed .the product design is proposed and documented on Design document specification(DDS). The design approach defines the architectural modules of product with its communication and data flow representation. All modules in the design must be defined clearly with details in DDS Waterfall Model: waterfall model is used to approach for system analysis and design .waterfall model is the first modern approach model and it is also referred as linear-sequential life cycle model. in waterfall model the process is divided into separate phases .its very simple to use and understand . In this model each phase is completed before the...
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