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Goal Modeling
A goal model is an element of requirements engineering that may also be used more widely in business analysis. Related elements include stakeholder analysis, context analysis, and scenarios, among other business and technical areas. Principles Goals are objectives which a system should achieve through cooperation of actors in the intended software and in the environment. Goal modeling is especially useful in the early phases of a project. Projects may consider how the intended system meets organizational goals (see also ), why the system is needed and how the stakeholders’ interests may be addressed. A goal model: * Expresses the relationships between a system and its environment (i.e. not only on what the system is supposed to do, but why). The understanding this gives, of the reasons why a system is needed, in its context, is useful because "systems are increasingly used to fundamentally change business processes rather than to automate long-established practices". * Clarifies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Requirements Engineering
Requirements engineering (RE) is the process of defining, documenting, and maintaining requirements in the engineering design process. It is a common role in systems engineering and software engineering. The first use of the term ''requirements engineering'' was probably in 1964 in the conference paper "Maintenance, Maintainability, and System Requirements Engineering", but it did not come into general use until the late 1990s with the publication of an IEEE Computer Society tutorial in March 1997 and the establishment of a conference series on requirements engineering that has evolved into the International Requirements Engineering Conference. In the waterfall model, requirements engineering is presented as the first phase of the development process. Later development methods, including the Rational Unified Process (RUP) for software, assume that requirements engineering continues through a system's lifetime. Requirement management, which is a sub-function of Systems Engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Use Case Diagram
A use case diagram is a graphical depiction of a user's possible interactions with a system. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well. The use cases are represented by either circles or ellipses. The actors are often shown as stick figures. Application While a use case itself might drill into a lot of detail about every possibility, a use-case diagram can help provide a higher-level view of the system. It has been said before that "Use case diagrams are the blueprints for your system". Due to their simplistic nature, use case diagrams can be a good communication tool for stakeholders. The drawings attempt to mimic the real world and provide a view for the stakeholder to understand how the system is going to be designed. Siau and Lee conducted research to determine if there was a valid situation for use case diagrams at all or if they were unnecessary. What was found wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enterprise Modelling
Enterprise modelling is the abstract representation, description and definition of the structure, processes, information and resources of an identifiable business, government body, or other large organization. It deals with the process of understanding an organization and improving its performance through creation and analysis of enterprise models. This includes the modelling of the relevant business domain (usually relatively stable), business processes (usually more volatile), and uses of information technology within the business domain and its processes. Overview Enterprise modelling is the process of building models of whole or part of an enterprise with process models, data models, resource models and/or new ontologies etc. It is based on knowledge about the enterprise, previous models and/or reference models as well as domain ontologies using model representation languages. F.B. Vernadat (1997)Enterprise Modelling Languages ICEIMT'97 Enterprise Integration - Interna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benefit Dependency Network
A benefit dependency network (BDN) is a diagram of cause and effect relationships. It is drawn according to a specific structure that visualizes multiple cause-effect relationships organized into capabilities, changes and benefits. It can be considered a business-oriented method of what engineers would call goal modeling and is usually read from right to left to provide a one-page overview of how a business generates value, starting with the high level drivers for change, such as found with Digital Initiatives or cross-organizational ERP management. First proposed by Cranfield School of Management as part of a Benefits Management approach the original model has developed to encompass all the domains required for Benefits Management A look at existing methods by Torsten Langner, LinkedIn https://www.linkedin.com/pulse/look-existing-methods-torsten-langner namely Why, What, Who and How. Recent development has added weights to the connections to create a weighted graph so that caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Mylopoulos
John Mylopoulos (born 12 July 1943) is a Greek-Canadian computer scientist, Professor at the University of Toronto, Canada, and at the University of Trento, Italy. He is known for his work in the field of conceptual modeling, specifically the development an agent-oriented software development methodology. called TROPOS. Biography Born in Greece in 1943, Mylopoulos in 1966 received his Bachelor of Engineering from Brown University. In 1970 he received his PhD from Princeton University under supervision of Theodosios Pavlidis with the thesis, entitled "On the Definition and Recognition of Patterns in Discrete Spaces." In 1966, he started his academic career as Assistant Professor at the University of Toronto, where he in 1971 he was appointed Professor in Computer Science. In 2009, he was also appointed Professor of Computer Science at the University of Trento. In 1986, Mylopoulos was elected President of the Greek Community of Toronto. He served for 2 years until 1988. Mylo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Fowler (software Engineer)
Martin Fowler (18 December 1963) is a British software developer, author and international public speaker on software development, specialising in object-oriented analysis and design, UML, patterns, and agile software development methodologies, including extreme programming. His 1999 book ''Refactoring'' popularised the practice of code refactoring. In 2004 he introduced a new architectural pattern, called Presentation Model (PM). Biography Fowler was born and grew up in Walsall, England, where he went to Queen Mary's Grammar School for his secondary education. He graduated at University College London in 1986. In 1994 he moved to the United States, where he lives near Boston, Massachusetts in the suburb of Melrose.Martin Fowler at martinfowler.com. Retrieved 2012-11-15. Fowler started working with software in the early 1980s. Out of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockburn, Alistair
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] |
Security
" \n\n\nsecurity.txt is a proposed standard for websites' security information that is meant to allow security researchers to easily report security vulnerabilities. The standard prescribes a text file called \"security.txt\" in the well known location, similar in syntax to robots.txt but intended to be machine- and human-readable, for those wishing to contact a website's owner about security issues. security.txt files have been adopted by Google, GitHub, LinkedIn, and Facebook.\n History \n\nThe Internet Draft was first submitted by Edwin Foudil in September 2017. At that time it covered four directives, \"Contact\", \"Encryption\", \"Disclosure\" and \"Acknowledgement\". Foudil expected to add further directives based on feedback. In addition, web security expert Scott Helme said he had seen positive feedback from the security community while use among the top 1 million websites was \"as low as expected right now\".\n\nIn 2019, the Cybersecurity and Infrastructure Security Agency ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-functional Requirement
In systems engineering and requirements engineering, a non-functional requirement (NFR) is a requirement that specifies criteria that can be used to judge the operation of a system, rather than specific behaviours. They are contrasted with functional requirements that define specific behavior or functions. The plan for implementing ''functional'' requirements is detailed in the system ''design''. The plan for implementing ''non-functional'' requirements is detailed in the system ''architecture'', because they are usually architecturally significant requirements. Definition Broadly, functional requirements define what a system is supposed to ''do'' and non-functional requirements define how a system is supposed to ''be''. Functional requirements are usually in the form of "system shall do ", an individual action or part of the system, perhaps explicitly in the sense of a mathematical function, a black box description input, output, process and control functional model or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misuse Case
Misuse case is a business process modeling tool used in the software development industry. The term ''Misuse Case'' or ''mis-use case'' is derived from and is the inverse of use case.Sindre and Opdahl (2001).Capturing Security Requirements through Misuse Cases The term was first used in the 1990s by Guttorm Sindre of the Norwegian University of Science and Technology, and Andreas L. Opdahl of the University of Bergen, Norway. It describes the process of executing a malicious act against a system, while use case can be used to describe any action taken by the system.Sindre and Opdahl (2004)Eliciting security requirements with misuse cases" Overview Use cases specify required behaviour of software and other products under development, and are essentially structured stories or scenarios detailing the normal behavior and usage of the software. A Misuse Case on the other hand highlights something that should not happen (i.e. a Negative Scenario) and the threats hence identified, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety Case
One definition of a Safety Case is that it is a structured argument, supported by evidence, intended to justify that a system is acceptably safe for a specific application in a specific operating environment. Safety cases are often required as part of a regulatory process, a certificate of safety being granted only when the regulator is satisfied by the argument presented in a safety case. Industries regulated in this way include transportation (such as aviation, the automotive industry and railways) and medical devices. As such there are strong parallels with the formal evaluation of risk used to prepare a Risk Assessment, although the result will be case specific. A vehicle safety case may show it to be acceptably safe to be driven on a road, but conclude that it may be unsuited to driving on rough ground, or with an off-center load for example, if there would then be a greater risk of danger e.g. a loss of control or an injury to the occupant. The information used to compile the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Analysis
Business analysis is a professional discipline of identifying business needs and determining solutions to business problems. Solutions often include a software-systems development component, but may also consist of process improvements, organizational change or strategic planning and policy development. The person who carries out this task is called a business analyst or BA. Business analysts do not work solely on developing software systems. But work across the organisation, solving business problems in consultation with business stakeholders. Whilst most of the work that business analysts do today relate to software development/solutions, this derives from the ongoing massive changes businesses all over the world are experiencing in their attempts to digitise. Although there are different role definitions, depending upon the organization, there does seem to be an area of common ground where most business analysts work. The responsibilities appear to be: * To investigate busin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
