| 1 | <html> |
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| 2 | <BODY BACKGROUND="../icons/backg.jpg"> |
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| 3 | <BR> |
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| 4 | <H1 ALIGN="CENTER"> <IMG SRC="http://cern.ch/geant4/images/g4_small.gif" ALT="GEANT4"> </H1> |
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| 5 | <H1 ALIGN="CENTER">Object Oriented</H1> |
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| 6 | <H1 ALIGN="CENTER">Analysis and Design</H1> |
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| 7 | <p> |
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| 8 | <p>Geant4 exploits advanced software engineering techniques based on the Booch/UML |
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| 9 | Object Oriented Methodology and follows the evolution of the ESA Software Engineering |
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| 10 | Standards for the development process. The "spiral" (iterative) approach has |
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| 11 | been adopted; <A HREF="URD.pdf">User Requirements</A> were collected in the initial phase and Problem |
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| 12 | Domain Decomposition, Object Oriented Methods and CASE tools have been employed |
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| 13 | for the Analysis and Design, giving a clear <a href="class_category_diagram/architecture.html">hierarchical |
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| 14 | structure</a> of sub-domains linked by a uni-directional flow of dependencies. |
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| 15 | This leads to a software product which is modular and flexible (a toolkit) and |
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| 16 | in which the physics implementation is transparent and open to the user validation |
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| 17 | of the physics predictions. It allows the user to understand, customise |
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| 18 | and extend the toolkit in all the domains; at the same time the modular architecture |
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| 19 | allows the user to load only needed components. |
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| 20 | <h2 align="left">Analysis Documents</h2> |
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| 21 | <ul> |
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| 22 | <li><A HREF="analysis/class_diags/index.html">Class diagrams</A> |
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| 23 | <li><A HREF="analysis/class_spec/index.html">Class specifications</A> |
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| 24 | <li><A HREF="analysis/scen_diagrams/index.html">Scenario diagrams</A> |
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| 25 | </ul> |
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| 26 | <h2 align="left">Design Documents</h2> |
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| 27 | <ul> |
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| 28 | <li>Class category diagram |
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| 29 | <ul> |
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| 30 | <li><a href="class_category_diagram/architecture.html">Architecture</a> |
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| 31 | (also available as <a href="class_category_diagram/architecture.ps">Postscript</a>) |
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| 32 | </li> |
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| 33 | <li><a href="class_category_diagram/detailed.ps">Details</a> including sub-categories |
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| 34 | (only as Postscript) </li> |
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| 35 | </ul> |
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| 36 | </li> |
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| 37 | <LI><A HREF="design/class_diags/index.html">Class diagrams</A> |
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| 38 | <LI><A HREF="design/class_spec/index.html">Class specifications</A> |
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| 39 | <LI><A HREF="design/scen_diagrams/index.html">Scenario diagrams</A> |
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| 40 | </ul> |
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| 41 | <hr> |
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| 42 | <i>Tuesday, 8 October 2002 |
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| 43 | - <i><a href="http://consult.cern.ch/xwho/people/20341">GC</a>, |
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| 44 | <a href="http://consult.cern.ch/xwho/people/1342">GF</a></i> |
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| 45 | </body> |
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| 46 | </html> |
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