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Structure Chart
A structure chart (SC) in software engineering and organizational theory is a chart which shows the breakdown of a system to its lowest manageable levels.IRS (2008) "Configuration Management" In: ''IRS Resources Part 2. Information Technology Chapter 27. Configuration Management''. Accessed aIRS.GOV14 November 2008. No longer online 8 November 2009. They are used in structured programming to arrange program modules into a tree. Each module is represented by a box, which contains the module's name. The tree structure visualizes the relationships between modules. Overview A structure chart is a top-down modular design tool, constructed of squares representing the different modules in the system, and lines that connect them. The lines represent the connection and or ownership between activities and subactivities as they are used in organization charts.H. Fujita & V. Gruhn (2004). ''New Trends in Software Methodologies, Tools and Techniques''. Page 6. In structured analysis str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Configuration System
In marketing, manufacturing, call centre operations, and management, mass customization makes use of flexible computer-aided systems to produce custom output. Such systems combine the low unit costs of mass production processes with the flexibility of individual customization.Mass customization is the new frontier in business for both manufacturing and service industries. At its core, is a tremendous increase in variety and customization without a corresponding increase in costs. At its limit, it is the mass production of individually customized goods and services. At its best, it provides strategic advantage and economic value. It is one of the product design strategies and is currently used with both techniques (delay differentiation and modular design) together with effective innovative climate to enhance the value delivered to customers. Mass customization is the method of "effectively postponing the task of differentiating a product for a specific customer until the latest po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Yourdon
Edward Nash Yourdon (April 30, 1944 – January 20, 2016) was an American software engineer, computer consultant, author and lecturer, and software engineering methodology pioneer. He was one of the lead developers of the structured analysis techniques of the 1970s and a co-developer of both the Yourdon/Whitehead method for object-oriented analysis/design in the late 1980s and the Coad/Yourdon methodology for object-oriented analysis/design in the 1990s. Biography Yourdon obtained his B.S. in applied mathematics from Massachusetts Institute of Technology (MIT) in 1965, and did graduate work in electrical engineering and computer science at MIT and the Polytechnic Institute of New York. In 1964 Yourdon started working at Digital Equipment Corporation developing FORTRAN programs for the PDP-5 minicomputer and later assembler for the PDP-8. In the late 1960s and early 1970s he worked at a small consulting firm and as an independent consultant. In 1974 Yourdon founded his own con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom DeMarco
Tom DeMarco (born August 20, 1940) is an American software engineer, author, and consultant on software engineering topics. He was an early developer of structured analysis in the 1970s. Early life and education Tom DeMarco was born in Hazleton, Pennsylvania. He received a BSEE degree in Electrical Engineering from Cornell University, a M.S. from Columbia University, and a diplôme from the University of Paris. Career DeMarco started working at Bell Telephone Laboratories in 1963, where he participated in ESS-1 project to develop the first large scale Electronic Switching System, which became installed in telephone offices all over the world.Tom DeMarco (2002Structured Analysis: Beginnings of a New Discipline In: ''sd&m Conference 2001, Software Pioneers'' Eds.: M. Broy, E. Denert, Springer 2002. Later in the 1960s he started working for a French IT consulting firm, where he worked on the development of a conveyor system for the new merchandise mart at La Villette in Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Work Breakdown Structure
A work-breakdown structure (WBS) in project management and systems engineering is a deliverable-oriented breakdown of a project into smaller components. A work breakdown structure is a key project deliverable that organizes the team's work into manageable sections. The Project Management Body of Knowledge (PMBOK 5) defines the work-breakdown structure as a "hierarchical decomposition of the total scope of work to be carried out by the project team to accomplish the project objectives and create the required deliverables." A work-breakdown structure element may be a product, data, service, or any combination of these. A WBS also provides the necessary framework for detailed cost estimation and control while providing guidance for schedule development and control.Booz, Allen & HamiltoEarned Value Management Tutorial Module 2: Work Breakdown Structure [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warnier/Orr Diagram
A Warnier/Orr diagram (also known as a logical construction of a program/system) is a kind of hierarchical flowchart that allows the description of the organization of data and procedures. They were initially developed 1976, in France by Jean-Dominique Warnier and in the United States by Kenneth Orr on the foundation of Boolean algebra. This method aids the design of program structures by identifying the output and processing results and then working backwards to determine the steps and combinations of input needed to produce them. The simple graphic method used in Warnier/Orr diagrams makes the levels in the system evident and the movement of the data between them vivid. Basic elements Warnier/Orr diagrams show the processes and sequences in which they are performed. Each process is defined in a hierarchical manner i.e. it consists of sets of subprocesses, that define it. At each level, the process is shown in bracket that groups its components. Since a process can have many di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structured Analysis And Design Technique
Structured analysis and design technique (SADT) is a systems engineering and software engineering methodology for describing systems as a hierarchy of functions. SADT is a structured analysis modelling language, which uses two types of diagrams: activity models and data models. It was developed in the late 1960s by Douglas T. Ross, and was formalized and published as IDEF0 in 1981. Overview Structured analysis and design technique (SADT) is a diagrammatic notation designed specifically to help people describe and understand systems.D. Marca, C. McGowan, Structured Analysis and Design Technique, McGraw-Hill, 1987, It offers building blocks to represent entities and activities, and a variety of arrows to relate boxes. These boxes and arrows have an associated informal semantics.John Mylopoulos (2004)Conceptual Modelling III. Structured Analysis and Design Technique (SADT) Retrieved 21 September 2008. SADT can be used as a functional analysis tool of a given process, using success ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HIPO
The term Hipo may refer to: * Hippopotamus * Hilfspolizei, an auxiliary police force * HIPO model, a 1970s tool for planning and documenting a computer program * 289 HiPo, a Ford Windsor engine The Ford small-block (aka Windsor V8) is a series of 90° overhead valve small block V8 automobile engines manufactured by the Ford Motor Company from July 1961 to December 2000. Designed as a successor to the Ford Y-block engine, it was fir ... * HIPO Corps, a Danish auxiliary police corps established by the German gestapo * Hip-O Records, part of Universal Music Group See also * Hippo (other) * Hypo (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Function Model
In systems engineering, software engineering, and computer science, a function model or functional model is a structured representation of the functions ( activities, actions, processes, operations) within the modeled system or subject area.FIPS Publication 183 released of IDEFØ December 1993 by the Computer Systems Laboratory of the National Institute of Standards and Technology (NIST). 
A function model, similar with the activity model or
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Decomposition Diagram
Decomposition in computer science, also known as factoring, is breaking a complex problem or system into parts that are easier to conceive, understand, program, and maintain. Overview There are different types of decomposition defined in computer sciences: * In structured programming, ''algorithmic decomposition'' breaks a process down into well-defined steps. * Structured analysis breaks down a software system from the system context level to system functions and data entities as described by Tom DeMarco. * ''Object-oriented decomposition'', on the other hand, breaks a large system down into progressively smaller classes or objects that are responsible for some part of the problem domain. * According to Booch, algorithmic decomposition is a necessary part of object-oriented analysis and design, but object-oriented systems start with and emphasize decomposition into objects.Grady Booch (1994). ''Object-oriented Analysis and Design'' (2nd ed.). Redwood Cita, CA: Benjamin/Cumm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
System Context Diagram
A system context diagram (SCD) in engineering is a diagram that defines the boundary between the system, or part of a system, and its environment, showing the entities that interact with it. This diagram is a high level view of a system. It is similar to a block diagram. Overview System context diagrams show a system, as a whole and its inputs and outputs from/to external factors. According to Kossiakoff and Sweet (2011):Alexander Kossiakoff, William N. Sweet (2011). ''Systems Engineering: Principles and Practices'' p. 266 System context diagrams are used early in a project to get agreement on the scope under investigation. Context diagrams are typically included in a requirements document. These diagrams must be read by all project stakeholders and thus should be written in plain language, so the stakeholders can understand items within the document. Building blocks Context diagrams can be developed with the use of two types of building blocks: * ''Entities (Actors)'': l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer-aided Software Engineering
Computer-aided software engineering (CASE) is the domain of software tools used to design and implement applications. CASE tools are similar to and were partly inspired by Computer-Aided Design (CAD) tools used for designing hardware products. CASE tools were used for developing high-quality, defect-free, and maintainable software. CASE software is often associated with methods for the development of information systems together with automated tools that can be used in the software development process. History The Information System Design and Optimization System (ISDOS) project, started in 1968 at the University of Michigan, initiated a great deal of interest in the whole concept of using computer systems to help analysts in the very difficult process of analysing requirements and developing systems. Several papers by Daniel Teichroew fired a whole generation of enthusiasts with the potential of automated systems development. His Problem Statement Language / Problem Statement An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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