Preliminary investigation is investigation is an inquiry or proceeding to determine whether there is sufficient ground to engender a well-founded belief that a crime has been committed and the respondent is probably guilty thereof, and should be held for trial.
or business business in in order to identify its goals and purposes systems analysis as "the process of studying a procedure or and create systems systems and and procedures that will achieve them in an efficient way". Another view sees systems analysis as a problem-solving problem-solving technique technique that decomposes a system into its component pi eces for the purpose of the studying [1[[need quotation to verify how well those component parts work and interact to accomplish their purpose. [1 Analysis and synthesis, as scientific methods, methods , always go hand in hand! they complement one another. very synthesis builds upon the results of a preceding analysis, and every analysis requires a subsequent synthesis in order to verify and correct its results.[citation needed #he field of systems analysis relates closely to requirements analysis or analysis or to operations research. research. $t is also "an e%plicit formal inquiry carried out to help a decision maker identify maker identify a better course of action and make a better decision than she might otherwise have made. #he terms analysis and synthesis stem from &reek, meaning "to take apart" and "to put together," respectively. respectively. #hese terms are used in many scientific disciplines, disciplines, from mathematics and logic to economics and psychology, to denote similar investigative procedures. Analysis is defined as "the procedure by which we break down an intellectual or substantial whole into parts," while s ynthesis means "the procedure by which we combine separate elements or components in order to form a coherent whole." [' (ystems analysis researchers apply methodology to the systems involved, forming an overall picture. (ystem analysis is used in every field where something is developed. Analysis can also be a series of components that perform organic functions together, such as system engineering. (ystems engineering is an interdisciplinary field of engineering that focuses on how comple% engineering pro)ects should be designed and managed.
Systems design is design is the process of defining the architecture architecture,, components, modules, interfaces, and data data for for a system to satisfy specified requirements requirements.. (ystems design could be seen as the application of systems of systems theory to product development. development. #here is some overlap with the disciplines of systems of systems analysis, analysis , systems architecture and architecture and systems engineering. engineering. $f the broader topic of product development "blends the perspective of marketing, design, and manufacturing into a single approach to product development," [' then design is the act of taking the marketing information and creating the design of the product to be manufactured. (ystems design is therefore the process of defining and developing systems to satisfy specified requirements of the user. *ntil the 1++s, systems design had a crucial and respected role in the data processing industry. $n the 1++s, standardiation standardiation of of hardware and software resulted in the ability to build modular modular systems. systems. #he increasing importance of software running on generic platforms has enhanced the discipline of software of software engineering. engineering. b)ect-oriented analysis and design methods design methods are becoming the most widel y used methods for computer systems [citation needed design. #he */0 */0 has has become the standard language in ob)ect-oriented analysis and design. [citation needed $t is widely used for modeling software systems and is increasingly used for high designing non-software systems and organiations.
System maintenance is maintenance is a catchall term used to describe various forms of computer or server maintenance required maintenance required to keep a computer system running properly. $t can describe network maintenance, which could mean that servers are being physically repaired, replaced, or moved. etwork maintenance can also mean that the software for a
server is being updated, changed, or repaired. #his sort of maintenance is typically performed on a regular or semiregular schedule, often during non-peak usage hours, and keeps servers running smoothly.
system maintenance is the routine updating of master files, such as adding and deleting employees and customers and changing credit limits and product prices.
Systems implementation is the construction of the new system and the delivery of that system into production 2that is, the day-to-day business or organiation operation3. Systems implementation is the process of4 defining how the information system should be built 2i.e., physical system design3, ensuring that the information system is operational and used, ensuring that the information system meets quality standard 2i.e., quality assurance3.
Software development is the process of computer programming, documenting, testing, and bug fi%ing involved in creating and maintaining applications and frameworks resulting in a software product. Software development is the process of computer programming, documenting, testing, and bug fi%ing involved in creating and maintaining applications and frameworks resulting in a software product. (oftware development is a process of writing andmaintaining the source code, but in a broader sense it includes all that is involved between the conception of the desired software through to the final manifestation of the software, sometimes in a planned and structured process.[1 #herefore, software development may include research, new development, prototyping, modification, reuse, re-engineering, maintenance, or any other activities that result in software products. [5 (oftware can be developed for a variety of purposes, the three most common being to meet specific needs of a specific client6business 2the case with custom software3, to meet a perceived need of some set of potential users 2the case with commercialand open source software3, or for personal use 2e.g. a scientist may write software to automate a mundane task3. Embedded software development, that is, the development of embedded software such as used for controlling consumer products, requires the development process to be integrated with the development of the controlled physical product. (ystem software underlies applications and the programming process itself, and is often developed separately. #he need for better quality control of the software development process has given rise to the discipline of software engineering, which aims to apply the systematic approach e%emplified in the engineering paradigm to the process of software development. #here are many approaches to software pro)ect management, known as software development life cycle models, methodologies, processes, or models. #he waterfall model is a traditional version, contrasted with the more recent innovation of agile software development.
