...understand Rapid Application Development (RAD) by outlining A brief history of development approaches leading to it Rationale Advantages/Disadvantages GUI Builders/Designers Event Driven Programming Application Programming II Rapid Application Development and Prototyping Rapid Application Development and Prototyping What is RAD? 3 RAD Approaches 4 Rapid Application Development (RAD) is a development lifecycle designed to give much faster development and higher-quality results than those achieved with the traditional lifecycle. It is designed to take the maximum advantage of powerful development software that has evolved recently (Martin, 1991). By using a series of proven application development techniques, within a well-defined methodology, organisations can quickly and cheaply develop systems without compromising on quality . Rapid Application Development and Prototyping Barry Boem’s spiral model James Martin's RAD methodology Agile methods Rapid Application Development and Prototyping 1 2/29/2016 What is RAD? 5 What is RAD? 6 Dr. James Martin came up with the RAD software development methodology/approach in the late 1980’s. This was in response to the non-agile Stagewise or Waterfall Models methodologies of the 1970s. Unlike the traditional conventional approaches, RAD emphasises development rather than specification and planning. It is thus a flexible and rapid development ...
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...Mechanical Scale Models Based on Rapid Prototyping Technology ABSTRACT The point of this paper is to spread the utilization of Rapid prototyping innovation (RP) into mechanical designing. In the improvement of another item it is constantly important to create a solitary model of a composed item or framework before the assignment of extensive measure of cash to new generation offices or mechanical production systems. The expense is high and creation tooling sets aside extensive time to get ready. The innovation which impressively speeds the intuitive item advancement procedure is the idea and routine of Rapid Prototyping (RP) additionally called Solid Freeform Fabrication (SFF). Fast Prototyping is being utilized subsequent to its cause by originators in distinctive field as item plan, car industry, medicinal applications, expressions, and it has been demonstrated that it is a vital instrument in any outline process. The originator has the likelihood of building the scale model in not very many hours...
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...Bouchard, Clarrisa Houle, Joel Belew CMTG/445 September 30, 2013 Charlie Neuman Business Case Prototyping Before an application can be implemented executives would like to see a prototype of the application or system to see how it will function within their existing systems. A prototype is a scaled model of an application or system that allows developers to present the application although it may not be fully functional but has enough functionality that allows executives and end users to get the basic understanding of what the system or application does. When it comes to prototyping there are several approaches that can be used, such as the waterfall approach which is the most common method of prototyping used. The waterfall approach “relies heavily on written specs, and leave testing and user feedback until late in the development cycle. A waterfall approach works well when there is a desire to consciously limit user options and force the adoption of out-of the-box functionality.” (Llieva, Mizuno 2013) When taking into consideration the work environment today, everything is fast paced, and interactive and requires a faster process for prototyping. This is where rapid prototyping comes in, rapid prototyping provides incremental prototypes at points throughout the development of the application or system. There are 4 key advantages to using the rapid prototyping method: 1. Allows adaptation to changing or evolving requirements. 2. Demonstrates...
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...Strayer University IT 106 Dr. Hines June 3, 2013 Software Development Models A software lifecycle model is a standardized format for planning, organizing, and running a new development project. Hundreds of different kinds of models are known and used. Some of these include waterfall, code and fix, spiral, rapid prototyping, unified process, agile methods extreme programming, and COTS. Many are minor variations on just a small number of basic models. It is important to survey the main types of model and to consider how to choose between them. A lifecycle model is a description of the sequence of activities carried out in an SE project, and the relative order of these activities. . By changing the lifecycle model we can improve and/or trade off development speed, product quality, project visibility, administrative overhead, risk exposure, and customer relations. Here is a quick overview along with some advantages and disadvantages of five different lifecycles. The waterfall model is the classic life cycle model. It is widely known, understood, and used. In some respect the waterfall is the “common sense” approach. It was introduced by Royce in 1970. Advantages include that they are easy to understand and implement, that they are widely used and known, and that it reinforces good habits: define-before-design, and design-before-code. It identifies deliverables and milestones, its document driven, and works well on mature products and weak teams. Disadvantages include that...
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...AC 2012-3052: PREPARING TO USE RAPID PROTOTYPING: LESSONS LEARNED FROM DESIGN AND MANUFACTURING PROJECTS Dr. Hung-da Wan, University of Texas, San Antonio Hung-da Wan is an Assistant Professor of the Mechanical Engineering Department and the Director of Machine Shop of College of Engineering at the University of Texas at San Antonio (UTSA). He has been teaching undergraduate and graduate courses in the areas of computer integrated manufacturing systems, Six Sigma and lean methodologies, and manufacturing systems engineering. He also manages two rapid prototyping systems at UTSA. His current research interests include sustainability of manufacturing systems and web-based applications in manufacturing. Mr. Firasath Ahmed Syed, University of Texas, San Antonio Syed Firasath Ahmed is a master’s student in advanced manufacturing and enterprise engineering at the University of Texas, San Antonio. He is a Graduate Research Assistant and helps with 3D Printing needs that arise in the Mechanical Engineering Department. He has experience in working with two rapid prototyping machines present in the university namely ”dimension SST 1200es” and ”Z Printer ZP450.” He received his B.S. degree from Osmania University, India, in 2010. His research interests include rapid prototyping, manufacturing engineering, system simulation, and lean systems. c American Society for Engineering Education, 2012 Preparing to Use Rapid Prototyping: Lessons Learned from Design and Manufacturing...
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...Prototyping is the gathering of information. “Information gathered in the prototyping phase allows the analyst to set priorities and redirect plans inexpensively, with a minimum of disruption” (Kendall & Kendall, 2011, p. 156). The prototyping helps to determine the basic requirement of input and output information, user interfaces, and customers and end users feedback. The advantage of prototyping can help the system analyst to stop development if the system is unworkable or potential changes to the system in the early developing stage. The disadvantage of prototyping for a system analyst can be an incomplete prototype and thinking it is a complete system. Rapid Application Development (RAD) is a software development methodology, which focuses on building applications in a small amount of time. RAD has three phases that help both users and analyst to design, assess, and implement. The first phase is a requirement planning phase, which the user and analyst will meet to identify objectives and information of the application or system. The second phase is RAD design workshop, which is design and refine phase that helps the analyst and user to design based on feedback. The last phase is the implementation phase, which comes from the analyst working with the users on the planning phase and design workshop phase that will help to determine if the system is compatible with the old system before implementation. The advantage of the RAD is that it is flexible and can adapt to...
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...commercialization of new and innovative AM processes, as well as numerous practical applications in aerospace, automotive, biomedical, energy and other fields. This paper reviews the main processes, materials and applications of the current AM technology and presents future research needs for this technology. Keywords additive manufacturing (AM), AM processes, AM materials, AM applications 1 Introduction The ASTM F42 Technical Committee defines additive manufacturing (AM) as the “process of joining materials to make objects from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies” [1]. It is also known as additive fabrication, additive processes, direct digital manufacturing, rapid prototyping, rapid manufacturing, layer manufacturing and solid freeform fabrication. The term AM describes additive fabrication processes in the broadest way that includes AM of prototypes (for design verification, form and fit checking), tools, patterns, and Received December 13, 2012; accepted January 23, 2013 Nannan GUO, Ming C. LEU ( ) Department of Mechanical and...
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...Answers: A. The main purpose of prototyping is to give the users a non-abstract system design that they can evaluate early in the process to avoid costly redesigns later. B. If a prototype is developed using system prototyping, the prototype is a model of the entire system and, if it meets user requirements, can be fleshed out into a full information system. Rapid Application Development (RAD) uses iterative system prototyping to create the final application. A prototype designed using design, or throwaway, prototyping is meant to be discarded after user review, whether or not its design details will be incorporated into the final version. This is frequently used to do mock-ups of user input screens, for example, before the back-end code is developed. C. CASE tools speed development by automatically creating diagrams and sometimes even code from analyst input. Combining CASE tools with 4GLs and application, report, and screen generators gives systems analysts the ability to create information systems quickly and accurately with effective documentation. D. Advantages: • Users get to see, and possibly interact with, a system rather than imagining what it will be like. • Design problems are identified and corrected earlier in the process. • TCO can be lowered by early design refinements, or even scrapping a project when it becomes apparent that it won’t succeed. Disadvantages: • The prototype is not a fully-functioning system, so there may be key details that are not...
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...systems improvement are research and analyzing the scope and feasibility of a new project. Systems Analysis Approach The information-gathering technique and design method proposed for this project is the Rapid Application Development method, acronym RAD. The RAD methodology is a process in which research of user requirements is compiled before producing any detailed system design documents. Using this approach decreases the time needed to design and implement new systems. Factors of Successful Analysis The Rapid Application Development method incorporates using three different approaches of systems analysis. These sub-approaches are Prototyping, Computer-Assisted Software Engineering Tools, and Joint Application Design. By using the three different perspectives, RAD streamlines the entire systems analysis and design process. Prototyping Prototyping is the building of a raw and small-scaled working model. This model is an easily modified and extensible representation, simulation or demonstration of a planned software system, likely including its interface and input/output functionality (Maner, 1997). There are two major factors of using prototyping. The first is that Prototyping involves the user during the system design. Second, prototyping...
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...in developing, marketing and launching new products. In this competition we finally have found the most innovative new consumer products, 3D printer. Introduction This product report will suggest l what the 3D printer is l the advantages of 3D printer l what characteristics of product correspond to our requirements Findings 1. The concept of 3D printer 3D printer is unlike of the common printers. On a 3D printer the object is printed by three dimension. A 3D model is built up layer by layer. Therefore the whole process is called rapid prototyping, or 3D printing. Nowadays, 3D printer is mainly used in business enterprises and concepts which demand time-saving. These include medicine, architecture but also the entertainment industry such as game and film industry. Even artists use a 3D printer for their creations in a comparatively short time in a solid shape to print. 2. The strengths of 3D printer l Accessibility : in the past, the knowledge & technology was accessible just for engineers & designers, today 3D printing techniques and printers are available to anyone. l Printing at Home : today anyone can buy 3D printer or 3-D designs in affordable price and enjoy large accessibility to many different kinds of materials. The advantage of printing at home is a key factor in the future 3D printing trends. l Product Better Quality : 3D product’s perfection can be achieved within hours. 3D programs can refine designs and prototypes over and over until the product gets...
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...OBJECTIVE. 1. RAPID PROTOTYPING MANUFACTURING. 1.1 DEFINITION. Rapid prototyping manufacturing is a group of techniques used to manufacture, in a fast way, a model of a specific piece generating a model in CAD, (Computer Aided Design), with 3D data as fast as possible. Nowadays is used as one manufacturing process more. An example is found in the dental sector, in which it is used to manufacture the metallic structures that will be coated by ceramic creating dental crowns and bridges. The most used technique is the 3D printing or additive layer manufacturing. The first methods of rapid prototyping manufacturing were available in 80’s. Nowadays, is expanded, and as I mentioned, is not only to make prototypes, it is use to produce small series...
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...Decision Support System SYNOPSIS DSS Development 1. General idea of design and development process approaches: a. Traditional systems analysis and design, SDLC approach. b. An iterative, speedy prototyping c. Managers can develop their own personal DSS 2. Investigate alternative designs along with the development process approaches a. Building effective DSS is important matter b. Choose an approach that increases the chances of benefits of DSS c. Building a DSS is a difficult task since different employees have different job responsibilities and take different decisions. 3. Decision oriented Design Approach a. Pre design description and diagnosis of decision making functions b. Diagnosis of current decision making is to be prepared c. Determine how decisions are currently made 4. Decision orientation is the key a. Specify changes in decision process b. Flow chart the process c. Specify what specific improvements in the decision performance are to be made 5. Diagnostic Steps a. Collect data on present decision making b. Use interviews, observations or pervious records. c. Establish a logical description of the same d. Specify a norm as to how a decision should be made 6. Decision process audit plan a. What will be audited and by whom? b. Examine and diagram the process? c. Observe and collect data? d. Evaluate performance e. Reporting and recommendations are done accordingly 1 Decision Support System 7. Reaching a diagnosis a. Focus on identifying...
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...Table of Contents Executive Summary 2 I. Introduction 3 IDEO’s organization 3 IDEO’s processes 4 IDEO’s management 4 Role of prototyping and experimentation 5 II. Problem Definition 6 III. Alternative Courses of Action 7 Reject Handspring’s proposal 7 Accept Handspring’s Proposal 8 Recommend a New Proposal to Handspring 8 IV. Recommended Course of Action 9 Managing the Visor project 10 Executive Summary Product development firms like IDEO have invested time and effort in constructing methodologies and processes that make them succeed in every territory they venture in. IDEO is one of the largest and most successful product development firms that has contributed to many of the products that we take today for granted. Some of IDEO’s inventions include the first Apple mouth, Oral B Squish grip, Nike sunglasses, 25 feet mechanical whale and even medical equipment. IDEO has worked with a company called 3Com for years to develop the breakthrough Palm V handheld device. IDEO is a company that emphasizes design as well as engineering and is now met with an offer from a new company called Handspring to develop the next handheld computer which would directly compete with the Palm V. Handspring is a company created by two of 3Coms successful employees, and whose objective is to duplicate the success of the Palm V by selling a fully compatible but less expensive handheld device, which can also add more functionalities. This later came to be called the ‘Visor’...
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...databases, servers, and the organizations ERP requires attention in a business case as well. The document writers must also show the ROI and how the new technology will integrate into the organization's legacy systems. This is a daunting task for a team to take on and extremely time consuming. With these steps and plans, we will outline the prototyping environments and processes, testing design to include procedures and standards, source of accessibility, and integration. Prototyping environments and processes Choosing the correct prototyping methods requires careful planning and analysis for the type of business that an IS is being implemented. When planning, stakeholders need to determine where a high-functioning prototype will receive funding, or if a lower quality parts estimate will be adequate. The decision will come down to the cost versus the potential benefit, and there is no standard measure for this first level prototyping decision (Lokesh & Jain, 2010). The prototyping process uses a trial and error approach to discovering how a system should operate. The flow of the prototyping process includes collection requirements, develop/refine prototype, review...
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...THE SYSTEMS DEVELOPMENT LIFE CYCLE LECTURE NOTES DEVELOPING INFORMATION SYSTEMS SOLUTIONS The Systems Development Cycle: The systems approach can be applied to the solution of many types of problems. When this involves the development of information system solutions to business problems, it is called information systems development or application development. Most computer-based information systems are conceived, designed, and implemented using some form of systematic development process. In this process, end users and information specialists design information systems based on an analysis of the information requirements of an organization. Thus, a major part of this process is known as systems analysis and design. When the systems approach is applied to the development of information system solutions, a multistep process or cycle emerges. This is frequently called the information systems development cycle, also known as the systems development life cycle (SDLC). Steps involved and products produced in the traditional information systems development cycle: 1. Systems investigation - Product: Feasibility Study 2. Systems analysis - Product: Functional Requirements 3. Systems design - Product: Systems Specifications 4. Systems implementation - Product: Operational System 5. Systems maintenance - Product: Improved System 1. All the activities involved are highly related and interdependent. 2. Several developmental activities can occur at the same time...
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