Object-modeling technique
Encyclopedia
The object-modeling technique (OMT) is an object modeling language
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 was developed as an approach to software development
. The purposes of modeling according to Rumbaugh are:
OMT has proposed three main types of models:
OMT is a predecessor of the Unified Modeling Language
(UML). Many OMT modeling elements are common to UML.
Functional Model in OMT:
In brief, a functional model in OMT defines the function of the whole internal processes in a model with the help of "Data Flow Diagrams (DFD's). It details how processes are performed independently.
Object modeling language
Object Modeling Language is a modeling language based on a standardized set of symbols and ways of arranging them to model an object oriented software design or system design....
for software
Computer software
Computer software, or just software, is a collection of computer programs and related data that provide the instructions for telling a computer what to do and how to do it....
modeling and designing. It was developed around 1991 by Rumbaugh
James Rumbaugh
James E. Rumbaugh is an American computer scientist and object methodologist who is best known for his work in creating the Object Modeling Technique and the Unified Modeling Language .- Biography :...
, Blaha, Premerlani, Eddy and Lorensen as a method to develop object-oriented systems and to support object-oriented programming
Object-oriented programming
Object-oriented programming is a programming paradigm using "objects" – data structures consisting of data fields and methods together with their interactions – to design applications and computer programs. Programming techniques may include features such as data abstraction,...
.
OMT was developed as an approach to software development
Software development
Software development is the development of a software product...
. The purposes of modeling according to Rumbaugh are:
- 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. Main concepts are classes and associations with attributes and operations. Aggregation and generalization (with multiple inheritance) are predefined relationships.
- Dynamic model: The dynamic model represents a state/transition view on the model. Main concepts are states, transitions between states, and events to trigger transitions. Actions can be modeled as occurring within states. Generalization and aggregation (concur-rency) are predefined relationships.
- Functional model: The functional model handles the process perspective of the model, corresponding roughly to data flow diagrams. Main concepts are process, data store, data flow, and actors.
OMT is a predecessor of the Unified Modeling Language
Unified Modeling Language
Unified Modeling Language is a standardized general-purpose modeling language in the field of object-oriented software engineering. The standard is managed, and was created, by the Object Management Group...
(UML). Many OMT modeling elements are common to UML.
Functional Model in OMT:
In brief, a functional model in OMT defines the function of the whole internal processes in a model with the help of "Data Flow Diagrams (DFD's). It details how processes are performed independently.
Further reading
- James RumbaughJames RumbaughJames E. Rumbaugh is an American computer scientist and object methodologist who is best known for his work in creating the Object Modeling Technique and the Unified Modeling Language .- Biography :...
, Michael Blaha, William Premerlani, Frederick Eddy, William Lorensen (1990). Object-Oriented Modeling and Design. Prentice Hall. ISBN 0-13-629841-9
- Terri Quatrani, Michael Jesse Chonoles (1996). Succeeding With the Booch and OMT Methods: A Practical Approach. Addison Wesley. ISBN 0-8053-2279-56