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   5 <TITLE>AliRoot description</TITLE>
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  27 <TD><img src="picts/MadHatter.gif" alt="ALICE Off-line Project Logo">
  28 <TD><img src="picts/manual_name.gif" alt="AliRoot description">
  29 <TD><img src="picts/AliceLogo.gif" alt="ALICE Logo">
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  32
  33 <h2>Overview of AliRoot</h2>
  34
  35
  36 <font size=+2 color=red><blink>This part is under construction.</blink>
  37 </font>
  38
  39 <h3>General AliRoot architecture</h3>
  40
  41 <p> This picure is a general schema of the AliRoot architecture.
  42
  43 <center><img src="picts/architecture.gif" height=500></center>
  44
  45 <p> The following picture shows an high-level decomposition of AliRoot
  46 into functional blocks.
  47
  48 <center><img src="picts/aliroot_schema.gif" height=400></center>
  49
  50 <h3>Virtual MonteCarlo schema</h3>
  51
  52 <p> This picture illustrates the concept of Virtual MonteCarlo schema
  53 as it is implemented by AliRoot.
  54
  55 <center><img src="picts/virtualmc.gif" height=500></center>
  56
  57 <p> This picture illustrates the stepping action mechanism for the virtual
  58 MC. Only the GEANT&nbsp;3 version is operational, while the GEANT&nbsp;4
  59 one is under testing.
  60
  61 <center><img src="picts/virtualmc2.gif" height=300></center>
  62
  63 <h3>AliRoot flow of control</h3>
  64
  65 <p> This picture illustrates the AliRoot flow of control.
  66
  67 <center><img src="picts/alirootflow.gif" height=300></center>
  68
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  70 <address>
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  75 by <a href="mailto:Federico.Carminati@cern.ch">Federico Carminati</a>
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