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Use Cases
In software and systems engineering, the phrase use case is a polyseme with two senses: # A usage scenario for a piece of software; often used in the plural to suggest situations where a piece of software may be useful. # A potential scenario in which a system receives an external request (such as user input) and responds to it. This article discusses the latter sense. A ''use case'' is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language (UML) as an ''actor'') and a system to achieve a goal. The actor can be a human or another external system. In systems engineering, use cases are used at a higher level than within software engineering, often representing missions or stakeholder goals. The detailed requirements may then be captured in the Systems Modeling Language (SysML) or as contractual statements. History In 1987, Ivar Jacobson presented the first article on use cases at the OOPSLA'87 conference. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edit An Article
Edit may refer to: Concepts * an action that is part of an editing process (including of images, video, and film) * a particular version that is the result of editing, especially of film (for example, fan edit), or music (for example, radio edit) * a film transition, also known as a "cut" * a change to a computer file * a change in the genome introduced via gene editing, or in the epigenome via epigenome editing * ''edit.'', an abbreviation of "edition" Music * edIT, American electronic DJ and producer * ''Edit'' (album), a 2008 album by Mark Stewart * "Edit", a song by Regina Spektor from the 2006 album ''Begin to Hope'' Other uses * Edit (given name), a list of people and fictional characters * Equitas Development Initiatives Trust (EDIT), established by the Equitas Small Finance Bank in India * ''Edit'' (application), a simple text editor for the Apple Macintosh * Edit (MS-DOS), the MS-DOS Editor, a plain-text editor for MS-DOS, included in some versions of Microsoft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Process Re-engineering
Business process re-engineering (BPR) is a business management strategy originally pioneered in the early 1990s, focusing on the analysis and design of workflows and business processes within an organization. BPR aims to help organizations fundamentally rethink how they do their work in order to improve customer service, cut operational costs, and become world-class competitors.Business Process Re-engineering Assessment Guide United States General Accounting Office, May 1997. BPR seeks to help companies radically restructure their organizations by focusing on the ground-up design of their business processes. According to early BPR proponent (1990), a busin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Requirements Analysis
In systems engineering and software engineering, requirements analysis focuses on the tasks that determine the needs or conditions to meet the new or altered product or project, taking account of the possibly conflicting requirements of the various stakeholders, ''analyzing, documenting, validating and managing'' software or system requirements. Requirements analysis is critical to the success or failure of a systems or software project. The requirements should be documented, actionable, measurable, testable, traceable, related to identified business needs or opportunities, and defined to a level of detail sufficient for system design. Overview Conceptually, requirements analysis includes three types of activities: * Eliciting requirements: (e.g. the project charter or definition), business process documentation, and stakeholder interviews. This is sometimes also called requirements gathering or requirements discovery. *Recording requirements: Requirements may be document ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Institute Of Business Analysis
The International Institute of Business Analysis (IIBA) is a professional association formed in October 2003 with the stated goal of supporting and promoting the discipline of business analysis. IIBA offers help and information to business analysts in order to develop their skills and further their careers. It issued A Guide to the Business Analysis Body of Knowledge (BABOK). IIBA offers certification for business analysis professionals, including the Certification of Competency in Business Analysis (CCBA) and Certified Business Analysis Professional (CBAP) designations. IIBA has local chapters in multiple countries. It is a member organization of the Federation of Enterprise Architecture Professional Organizations (FEAPO). History The IIBA organization was founded in 2003, and the Body of Knowledge Committee was founded in 2004. In 2005 the BABOK Guide was released and the CBAP certification graduate program was implemented. Membership grew to over 5,000 members by 2008, and to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alistair Cockburn
Alistair Cockburn ( ) is an American computer scientist, known as one of the initiators of the agile movement in software development. He cosigned (with 17 others) the Manifesto for Agile Software Development. Life and career Cockburn started studying the methods of object oriented (OO) software development for IBM. From 1994, he formed "Humans and Technology" in Salt Lake City. He obtained his degree in computer science at the Case Western Reserve University. In 2003 he received his PhD degree from the University of Oslo. Cockburn helped write the Manifesto for Agile Software Development in 2001, the agile PM Declaration of Interdependence in 2005, and co-founded the International Consortium for Agile in 2009 (with Ahmed Sidky and Ash Rofail). He is a principal expositor of the use case for documenting business processes and behavioral requirements for software, and inventor of the Cockburn Scale for categorizing software projects. The methodologies in the Crystal family ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usage-centered Design
Usage-centered design is an approach to user interface design based on a focus on user intentions and usage patterns. It analyzes users in terms of the roles they play in relation to systems and employs abstract (essential) use cases for task analysis. It derives visual and interaction design from abstract prototypes based on the understanding of user roles and task cases. Usage-centered design was introduced by Larry Constantine and Lucy Lockwood. The primary reference is their book. Usage-centered design methods Usage-centered design is largely based on formal, abstract models such as models of interaction between user roles, UML workflow models and task case and role profiles. Usage-centered design proponents argue for abstract modelling while many designers use realistic personas, scenarios and high-fidelity prototypes. The techniques have been applied with particular success in complex software projects, some of which have been reported in case studies.See, for example, Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larry Constantine
Larry LeRoy Constantine (born 1943) is an American software engineer, professor in the Center for Exact Sciences and Engineering at the University of Madeira Portugal, and considered one of the pioneers of computing. He has contributed numerous concepts and techniques forming the foundations of modern practice in software engineering and applications design and development. Biography Constantine grew up in Anoka, Minnesota, and graduated from Anoka High School in 1961 after being active in debate and thespians as well as other extra curricular activities. He was named "Most Likely to Succeed" by his classmates. Constantine received an S.B. in management from the MIT Sloan School of Management in 1967 with a specialization in information systems and psychology. He received a certificate in family therapy 1973 from the Boston Family Institute, two-year post graduate training program. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unified Process
The Unified Software Development Process or Unified Process is an iterative and incremental software development process framework. The best-known and extensively documented refinement of the Unified Process is the Rational Unified Process (RUP). Other examples are OpenUP and Agile Unified Process. Overview The Unified Process is not simply a process, but rather an extensible framework which should be customized for specific organizations or projects. The ''Rational Unified Process'' is, similarly, a customizable framework. As a result, it is often impossible to say whether a refinement of the process was derived from UP or from RUP, and so the names tend to be used interchangeably. The name ''Unified Process'' as opposed to ''Rational Unified Process'' is generally used to describe the generic process, including those elements which are common to most refinements. The ''Unified Process'' name is also used to avoid potential issues of trademark infringement since ''Rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Objectory
Objectory is an object-oriented methodology mostly created by Ivar Jacobson, who has greatly contributed to object-oriented software engineering Object-oriented programming (OOP) is a programming paradigm based on the concept of "objects", which can contain data and code. The data is in the form of fields (often known as attributes or ''properties''), and the code is in the form of p .... The framework of objectory is a design technique called design with building blocks. With the building block technique, a system is viewed as a system of connecting blocks with each block representing a system service. It is considered to be the first commercially available object-oriented methodology for developing large-scale industrial systems. This approach gives a global view of the software development and focuses on cost efficiency. Its main techniques are: conceptual modelling, Object-oriented programming, and a block design technique. References Object-oriented programming [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Object Management Group
The Object Management Group (OMG) is a computer industry standardization, standards consortium. OMG Task Forces develop enterprise integration standards for a range of technologies. Business activities The goal of the OMG was a common portable and interoperable object model with methods and data that work using all types of development environments on all types of platforms. The group provides only specifications, not implementations. But before a specification can be accepted as a standard by the group, the members of the submitter team must guarantee that they will bring a conforming product to market within a year. This is an attempt to prevent unimplemented (and unimplementable) standards. Other private companies or open source groups are encouraged to produce conforming products and OMG is attempting to develop mechanisms to enforce true interoperability. OMG hosts four technical meetings per year for its members and interested nonmembers. The Technical Meetings provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Object-modeling Technique
The object-modeling technique (OMT) is an object modeling approach for software modeling and designing. It was developed around 1991 by Rumbaugh, Blaha, Premerlani, Eddy and Lorensen as a method to develop object-oriented systems and to support object-oriented programming. OMT describes object model or static structure of the system. OMT was developed as an approach to software development. The purposes of modeling according to Rumbaugh are:Terje Totland (1997)5.2.7 Object Modeling Technique (OMT)Thesis, Norwegian University of Science and Technology (NTNU), Trondheim. * testing physical entities before building them (simulation), * communication with customers, * visualization (alternative presentation of information), and * reduction of complexity. OMT has proposed three main types of models: * ''Object model'': The object model represents the static and most stable phenomena in the modeled domain.(Rumbaugh et al.,1991:21) Main concepts are classes and associations with attri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Booch Method
The Booch method is a method for object-oriented software development. It is composed of an object modeling language, an iterative object-oriented development process, and a set of recommended practices. The method was authored by Grady Booch when he was working for Rational Software (acquired by IBM), published in 1992 and revised in 1994. It was widely used in software engineering for object-oriented analysis and design and benefited from ample documentation and support tools. The notation aspect of the Booch method was superseded by the Unified Modeling Language (UML), which features graphical elements from the Booch method along with elements from the object-modeling technique (OMT) and object-oriented software engineering (OOSE). Methodological aspects of the Booch method have been incorporated into several methodologies and processes, the primary such methodology being the Rational Unified Process The Rational Unified Process (RUP) is an iterative software development p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
