Incremental and iterative developments - Incremental and iterative developments The incremental and iterative developments are the methods of software development where small changes are accumulated and designing, implementing, debugging and deploying occur circularly in a short period of time. It is one of primary practices of Extreme Programming. External Links http://c2.com/cgi/wiki/wiki?HistoryOfIterative.
Iterative and Incremental development - Iterative and Incremental development Iterative and Incremental development is a process. Iterative and Incremental development is a one of Extreme programming practices. The basic idea behind iterative enhancement is to develop a software system incrementally, allowing the developer to take advantage of what was being learned during the development of earlier, incremental, deliverable versions of the system. Learning comes from both the development and use of the system, where possible. Key steps in the process were to start with a simple implementation of a subset of the software requirements and iteratively enhance the evolving sequence of versions until the full system is implemented. At each iteration, design modifications are made along with addition new functional capabilities. The Procedure itself consists of the Initialization step, the Iteration.
Software development process - Software development process The software development process is the methodology used in developing computer software. Some software development methods: Top-Down Model Bottom Up Waterfall model Spiral model Chaos model Prototyping Evolutionary prototyping Iterative and Incremental development Extreme Programming Some paradigms for programming software: Procedural programming Structured programming Imperative programming Declarative programming Functional programming Literate programming Object oriented programming Concurrent programming Component-oriented programming There are also a variety of kinds of software documentation. See also: project lifecycle..
Iteration - = 0 for i = 0 stepby 1 until 3 a = a + i print a /* "6" is printed */ A process which is repeated again and again it know as a reiterative process. Reiteration is often used in order to converge on the final result when starting with an educated guess. See also: Iterative and Incremental development -- iterator -- Iterative method -- Nash embedding theorem.
Extreme Programming - "Extreme Programming Explained: Embrace Change" (ISBN 0201616416). It is the most popular of several agile processes. Fundamental characteristics of the method are: Incremental and iterative developments - small improvements after small ones continuous, often repeated automated unit test, regression testing. See JUnit. pair programming user interaction in the programming team (Onsite Customer) refactoring shared code ownership simplicity feedback These characteristics are only derivatives of principles that are known to be good, and are taken into extreme: Interaction between developers and customers is good. Therefore, an XP team is supposed to have a customer on site, who specifies and prioritises work for the team, and who can answer questions as soon as they arise. If learning is good, take it to extremes: Reduce the length of development and feedback cycles. Test early;.
Software engineering - example, if it is cheaper to execute a computer simulation than to implement an engineering model, a traditional engineer will be pressured to create a computer simulation. If it is cheaper to run a business with application software than to forego the cost of doing business with computing systems, a business may choose to sink funds into computer hardware, software and personnel. If a sub-community of these computer-related personnel indeed require the expertise of computer specialists, and the computer specialists share common language, terminology, certification, and so forth, then, the specialists can be considered part of a larger software, hardware and application community. Current directions for software engineering Agile processes are an important emerging practice. Agile processes are methods to manage software development so projects evolve with changing expectations. The older.
Project lifecycle - different models have been developed, beginning with the oldest and simplest being the Waterfall Model. However, as software has become larger and more complex, this method of development has been found to be counter productive, especially when large teams are involved. Models that are iterative have evolved including Prototyping, Evolutionary Prototyping, Incremental Development, spiral model, V model, and Chaos model. The use of these models was for the most part confined to the overall management of the project, however projects are now considered better controlled if the model best suited to them controls the individual aspects of the project. For example, a project may be managed using the Incremental Development model, but during each increment the Documentation is created managed using the Waterfall Model and the Code development managed using the.
List of project management topics - (software) B budget C Capability Maturity Model Change control Constraint Constraint Management Constraints, theory of Critical chain Critical path D Dependency Duration E Earned value management Estimation F Float (project management) Focused improvement Fordism G Gantt, Henry Gantt chart Goal (management) The Goal (book) Goldratt, Eliyahu M H I ISO 10006 Iterative and Incremental development J K Kitchen sink syndrome L M Management Management process Mr. Project Microsoft Project N O Object (task) Objective, project Organization Organizational development P PERT Plan Portfolio PMBOK Primavera (software) PRINCE2 Process Process improvement Process management Product (project management) Product breakdown structure Product description Program (management) Program Evaluation and Review Technique program management project Project lifecycle project management Project Management Body of Knowledge Project management process project management software Project objective Project plan Project planning Project.
John Tukey - a report challenging the conclusions of the Kinsey Report, Statistical Problems of the Kinsey Report on Sexual Behavior in the Human Male. Retiring in 1985, Tukey died in New Brunswick, New Jersey. His statistical interests were many and varied. He is particularly remembered for his development, with James Cooley of the Fast Fourier transform algorithm. He also contributed to statistical practice and articulated the important distinction between exploratory data analysis and confirmatory data analysis, believing that much statistical methodology placed too great an emphasis on the latter. Though he believed in the utility of separating the two types of analysis, he pointed out that sometimes, especially in natural science, this was problematic and termed such situations uncomfortable science. A D Gordon offered the following summary of Tukey's principles for statistical practice:.
Intergovernmental Panel on Climate Change - available data is not sufficient to determine the real importance of greenhouse gases in climate change. Sensitivity of climate to greenhouse gases may be over-estimated or under-estimated estimated because of some flaws in the models and because the importance of some external factors may be misestimated. On the other hand, predictions are based on scenarios, and the IPCC did not assign any probability to the 35 scenarios used. Debate over Climate Change 2001 Castles and Henderson asserted that the IPCC has been using inflated economic growth rates, which result in increased emission estimates. [1] This was incorrect because IPCC growth and emissions rates were based upon several factors and not only GDP, as rebutted by Nebojsa Nakicenovic et al. A few participants in IPCC Working Group I (Science) do not agree.
International Data Encryption Algorithm - IDEA is the second version of a block cipher designed by Xuejia Lai and James L. Massey of ETH-Zürich. RSA Security [1] describes it this way: [IDEA] is a 64-bit iterative block cipher with a 128-bit key. The encryption process requires eight complex rounds. Decryption is carried out in the same manner as encryption once the decryption subkeys have been calculated from the encryption subkeys. The cipher structure was designed to be easily implemented in both software and hardware, and the security of IDEA relies on the use of three incompatible types of arithmetic operations on 16-bit words. However some of the arithmetic operations used in IDEA are not that fast in software. As a result the speed of IDEA in software is similar to that of DES. [1] RSA Security.
Innovation - of view here is that "recognition of demand is a more frequent factor in successful innovation than recognition of technical potential (Marquis 1969)" Certainly the innovation studies literature stresses the role of user-supplier links in facilitating successful innovation. Innovation in business is achieved through many routes, with much attention having been given to formal research and development. But inovations may be developed by less formal on-the-job modifications of practice, through exchange and combination of professional experience, and via many other routes. The more radical and revolutionary innovations tend to stem from R&D, while more incremental innovations may emerge from practice - but there are many exceptions to each of these trends. Innovation need not be technological. For instance, when "McDonalds" applied the production line to producing restaurant food. It could use.
High-speed rail - relevance of the point—whose emergence have at least in part been the result of a forceful entrepreneur. Rail's George Stephenson and Peter Cooper, the automobile's Henry Ford, and the airplane's Orville and Wilbur Wright come immediately to mind. Five years after construction began on the line, on the eve of the Olympics in Tokyo, the first Japanese high speed rail line opened in 1964, connecting the capital with Osaka. This Olympic target date clearly reflects mercantilist interests in the promotion of modern Japan to the world. The French high-speed rail, the TGV, was opened in 1981 by SNCF, the French rail agency, also after many years of planning, beginning in 1966 and construction beginning in 1976. The opening ceremonies were a significant event, being reported internationally, but not associated with a.
Finite element method - equations such as the heat transport equation. The method was introduced by Richard Courant to solve torsion on cylinder. Courant's contribution was evolutionary, drawing on a large body of earlier results for PDEs developed by Rayleigh, Ritz and Galerkin. Development of the method began in earnest in the middle to late 1950s for airframe and structural analysis, and picked up a lot of steam at Berkeley in the 1960s for use in civil engineering. The method was provided with a rigorous mathematical foundation in 1973 with the publication of Strang and Fix's The Finite Element Method. Finite element methods are used in a wide variety of engineering disciplines. In computer graphics, radiosity algorithms are finite element methods. In solving partial differential equations, the primary challenge is to create an equation which.
Forth programming language - for later execution. Its name is derived from Mr. Moore's belief that it was a "fourth-generation computer language" on a computer whose file system allowed only five-letter identifiers. Forth offers a stand-alone programming environment, consisting of a stack oriented interactive incremental interpreter/compiler. Programming is done by extending the language with 'words' (the term used for forth subroutines), which become part of the language once defined. Forth is usually implemented with an inner interpreter tracing indirectly threaded machine code, which yields extremely compact and fast high level code which can be compiled rapidly. A character oriented screen/block mechanism and standard editor written in Forth, provide a file mechanism for creating and storing Forth source code. There is no concept of 'object code' (pre-compiled definitions) in Forth: definitions that are required are compiled.
Economy of Chad - Chad Economy - overview: Landlocked Chad's economic development suffers from its geographic remoteness, drought, lack of infrastructure, and political turmoil. About 85% of the population depends on agriculture, including the herding of livestock. Of Africa's Francophone countries, Chad benefited least from the 50% devaluation of their currencies in January 1994. Financial aid from the World Bank, the African Development Fund, and other sources is directed largely at the improvement of agriculture, especially livestock production. Due to lack of financing, the development of the Doba Basin oil fields, originally due to finish in 2000, has been substantially delayed. In 2000, Chad's nominal GDP was estimated at just over $1.43 billion with per capita income at approximately $188. Cotton, cattle and gum arabic are Chad’s major exports. More than 80% of the work.
Economy of Syria - the government has begun to revisit many of these policies, especially vis-ŕ-vis the financial sector and the country's trade regime. Despite a number of significant reforms and ambitious development projects of the early 1990s, as well as more modest reform efforts currently underway, Syria's economy still is slowed by large numbers of poorly performing public sector firms, low investment levels, and relatively low industrial and agricultural productivity. Despite the mitigation of the severe drought that plagued the region in the late 1990s and the recovery of energy export revenues, Syria's economy faces serious challenges. With almost 60% of its population under the age of 20, unemployment higher than the current estimated range of 20%-25% is a real possibility unless sustained and strong economic growth takes off. Oil production has leveled off,.
Delphi method - collected in the form of answers to questionnaires and their comments to these answers. The panel director controls the interactions among the participants by processing the information and filtering out irrelevant content. This avoids the negative effects of face-to-face panel discussions and solves the usual problems of group dynamics. Regular feedback Participants comment on their own forecasts, the responses of others and on the progress of the panel as a whole. At any moment they can revise their earlier statements. While in regular group meetings participants tend to stick to previously stated opinions and often conform too much to group leader, the Delphi method prevents it. Anonymity of the participants Usually all participants maintain anonymity. Their identity is not revealed even after the completion of the final report. This stops them.
Agile process - that software engineers focus on smaller units of work. One way in which Agile software development is generally distinguished from "heavier", more process-centric methodologies, for example the waterfall model, is by its emphasis on values and principles, rather than on processes. Typical cycles are one week or one month, and at the end of each cycle they reevaluate the project priorities - a feature it shares with incremental engineering methodologies, and most modern theories of project management. Table of contents showTocToggle("show","hide") 1 History 2 Reducing Weight 3 External Link History Agile processes evolved in the mid 1990s as part of the reaction against high ceremony processes, like CMM and ISO 9000. These processes were seen as bureaucratic, slow, demeaning, and contradicted the ways that software engineers actually work. Extreme Programming is.
Aggressiveness strategies (business) - reactor. Prospector strategy This is the most aggressive of the four strategies. It typically involves active programs to expand into new markets and stimulate new opportunities. New product development is vigorously pursued and attacks on competitors are a common way of obtaining additional market share. They respond quickly to any signs of market opportunity, and do so with little research or analysis. A large proportion of their revenue comes from new products or new markets. They are often highly levered, sometimes with a substantial equity position held by venture capitalists. The risk of product failure or market rejection is high. Their market domain is constantly in flux as new opportunities arise and past product offerings atrophy. They value being the first in an industry, thinking that their “first mover advantage” will.
