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| - | =====BON===== | ||
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| - | [[http://www.bon-method.com/index_normal.htm|BON]] - Business Object Notation. The BON method for analysis and design of object-oriented software is a means of extending the higher-level concepts of the Eiffel programming language into the realm of analysis and design aided by a graphical notation akin to but different from UML. | ||
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| - | BON provides a textual and graphical notation for modelling the static and dynamic structure of OO software: | ||
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| - | * BON has strong support for providing precise specifications of re-usable, industrial strength components via Design by Contract (preconditions, postconditions and class invariants), which includes subcontracting via the inheritance relationship. See example below. | ||
| - | * It supports a seamless method for turning software construction from specification to implementation into a single continuous process. | ||
| - | * It supports reversibility which is the ability to go back from implementation to specification. | ||
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| - | BON is described in depth in the book //Seamless Object-Oriented Software Architecture//, Prentice Hall, 1994, by Kim Waldén and Jean-Marc Nerson. The textbook is now out of print but available from the BON website as a [[https://wiki.eecs.yorku.ca/project/eiffel/_media/bon:bon-book.pdf|pdf]]. | ||
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| - | The graphical shapes of BON can be drawn using Microsoft Office Visio (available on Windows workstations in the Prism Lab or for your Laptop -- see links below). | ||
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| - | * Using the [[https://wiki.eecs.yorku.ca/project/eiffel/_media/bon:bon-stencil.zip|BON Visio Stencil]] (**Visio 2013 and later**), we can draw BON class and dynamic diagrams. A [[https://wiki.eecs.yorku.ca/project/eiffel/_media/bon:bon-visio.pdf|BON/Visio manual]] is available describing how to use Visio for the BON diagrams. | ||
| - | * This is the [[https://wiki.eecs.yorku.ca/project/eiffel/_media/bon:bon-visio-stencil-original.zip|]] for **Visio2010**. | ||
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| - | Here is an example of a contracted class CITIZEN using the BON notation: | ||
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| - | {{:bon:bon_diagram.png?200|}} | ||
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| - | ===BON Predicate Logic=== | ||
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| - | In BON diagrams, use mathematical notation to express contracts. See the BON textbook for more examples. | ||
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| - | {{:bon:bon-predicate-logic2..png?200|}} | ||
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| - | {{:bon:bon-predicate-logic1.png?200|}} | ||
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bon/start.1467916601.txt.gz · Last modified: 2016/07/07 18:36 by marina
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