Systems analysis

analysissystems analystsystemsSystem analysisanalyticalInformation Systems Analyst
The Merriam-Webster dictionary defines system analysis as "the process of studying a procedure or business in order to identify its goals and purposes and create systems and procedures that will achieve them in an efficient way".wikipedia
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Robert McNamara

Robert S. McNamaraMcNamaraSecretary of Defense McNamara
The discipline of what is today known as policy analysis originated from the application of system analysis when it was first instituted by United States Secretary of Defense Robert McNamara.
McNamara was responsible for the institution of systems analysis in public policy, which developed into the discipline known today as policy analysis.

System

systemssubsystemsubsystems
The Merriam-Webster dictionary defines system analysis as "the process of studying a procedure or business in order to identify its goals and purposes and create systems and procedures that will achieve them in an efficient way".
A system comprises multiple views. Man-made systems may have such views as concept, analysis, design, implementation, deployment, structure, behavior, input data, and output data views. A system model is required to describe and represent all these views.

Policy analysis

policy analystpolicy analystspolicy
The discipline of what is today known as policy analysis originated from the application of system analysis when it was first instituted by United States Secretary of Defense Robert McNamara.
Policy analysis has its roots in systems analysis, an approach used by United States Secretary of Defense Robert McNamara in the 1960s.

Analysis

analysesanalyticalanalyze
The terms analysis and synthesis stem from Greek, meaning "to take apart" and "to put together," respectively.
Analysts in the field of engineering look at requirements, structures, mechanisms, systems and dimensions.

Systems engineering

systems engineersystemssystem engineering
System engineering is an interdisciplinary field of engineering that focuses on how complex engineering projects should be designed and managed.
Systems analysis,

Systems design

system designdesignsystems designer
Systems design
There is some overlap with the disciplines of systems analysis, systems architecture and systems engineering.

Business analyst

analystanalystsBusiness analysis
Employment utilizing system analysis include system analyst, business analyst, manufacturing engineer, system architect, enterprise architect, software architect, etc.
4) Systems analysis – the interpretation of business rules and requirements for technical systems (generally within IT)

Logico-linguistic modeling

Logico-linguistic modeling
In the first stage logico-linguistic modeling uses SSM for systems analysis.

Requirements analysis

requirementsanalysisanalysts
The field of system analysis relates closely to requirements analysis or to operations research.
Systems analysis

Data model

structured datastructureddata models
This helps produce the data model, a precursor to creating or enhancing a database.
Object-Role Modeling is a fact-oriented method for performing systems analysis at the conceptual level.

Igor Hawryszkiewycz

Hawryszkiewycz, Igor T. Introduction to system analysis and design. Prentice Hall PTR, 1994.
Igor Titus Hawryszkiewycz (born c. 1948) is an American computer scientist, organizational theorist, and Professor at the School of Systems, Management and Leadership of the University of Technology, Sydney, known for his work in the field of database systems, systems analysis, and knowledge management.

Systems architecture

system architecturearchitecturesystem architecture level
System architecture
Systems analysis

Event partitioning

Event partitioning is an easy-to-apply systems analysis technique that helps the analyst organize requirements for large systems into a collection of smaller, simpler, minimally-connected, easier-to-understand "mini systems" / use cases.

Diakoptics

In systems analysis, Diakoptics (Greek dia–through + kopto–cut,tear) or the "Method of Tearing" involves breaking a (usually physical) problem down into subproblems which can be solved independently before being joined back together to obtain an exact solution to the whole problem.

Pandora's Box (TV series)

Pandora's BoxThe League of GentlemenPandora's Box'' (TV series)
Curtis deals with, in order: Communism in the Soviet Union, systems analysis and game theory during the Cold War, economy of the United Kingdom during the 1970s, the insecticide DDT, Kwame Nkrumah's leadership in Ghana in the 1950s, and the history of nuclear power.

IPO model

input–process–output modelInput-Process-Output (IPO) model
The input–process–output (IPO) model, or input-process-output pattern, is a widely used approach in systems analysis and software engineering for describing the structure of an information processing program or other process.

Structured analysis

structured designstructured'' approaches
Structured analysis and design techniques are fundamental tools of systems analysis.

Many-to-many (data model)

many-to-manymany-to-many relationshipmany-to-many relationships
In systems analysis, a many-to-many relationship is a type of cardinality that refers to the relationship between two entities A and B in which A may contain a parent instance for which there are many children in B and vice versa.

Specification language

specificationformal specification languagespecifications
A specification language is a formal language in computer science used during systems analysis, requirements analysis and systems design to describe a system at a much higher level than a programming language, which is used to produce the executable code for a system.

Twelve leverage points

places to intervene in a systemleverage pointsLeverage Points: Places to Intervene in a System
Meadows, who worked in the field of systems analysis, proposed a scale of places to intervene in a system.

The Chalice and the Blade

The study of relational dynamics is an application of systems analysis: the study of how different components of living systems interact to maintain one another and the larger whole of which they are a part.

Software engineering

software engineerssoftware engineersoftware
as the informal contemporary term for the broad range of activities that were formerly called computer programming and systems analysis;

One-to-one (data model)

one-to-one
In systems analysis, a one-to-one relationship is a type of cardinality that refers to the relationship between two entities (see also entity–relationship model) A and B in which one element of A may only be linked to one element of B, and vice versa.

Systems analysis and design

Systems analysis, a method of studying a system by examining its component parts and their interactions