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<p class="MsoNormal">Hello All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am currently part of a team developing a Task/Production Management/Work Flow Management application for a client here in Australia. The core of this application is the concept of a “task”, which is basically a set of requirements that
come in from customers (our client’s customers) and are passed around the organisation. The result of a task is one or more “products”, which are what is built in response to the customer requirements. Both tasks and products have a geospatial component,
in that they have coordinates stored against them. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have been asked to use Oracle as the DBMS and to build our application on top of TRIM.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have requirements to build a map search interface. They want a map that they can draw a bounding box on and have the application return all tasks and products that fall within that area. That geospatial search can also be combined with
a textual search (e.g. date ranges, product author etc).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">That should be enough background…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">One of the solutions I’ve been looking at is Mapserver. The web site says that data can be added via a delimited text file, and I think I’ve found examples of applications that use an index file to query against. I had envisioned something
like the following implementation:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">An index file (or files) is built when products/tasks are stored<o:p></o:p></span></p>
<p class="para01" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">This index file lists all products/tasks against a set of coordinates – it would be as simple as product/task number vs. coordinates.<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">The user draws a bounding box on the map search interface deployed via Mapserver<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">A query is made against the index file(s)<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">The returned product/task numbers are passed to TRIM<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">TRIM joins this search result with any other search criteria (e.g. date, author, title etc)<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">TRIM executes this joined query<o:p></o:p></span></p>
<p class="para01" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Tahoma","sans-serif"">The results can be returned to Mapserver somehow, so the user can see them graphically (e.g. a flag at each of the product/task locations)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does that sound sensible or is it too simplistic? Our application really is light-on when it comes to GIS content, and the other solutions I’m looking at (e.g. ArcIMS/ArcSDE, Dekho/ArcGIS Server) look to be overkill.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your time,<o:p></o:p></p>
<p class="MsoNormal">Neil<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Lucida Calligraphy";
color:blue">Neil Atherton</span></b><span style="font-size:10.0pt;font-family:
"Century Gothic","sans-serif";color:black">
<br>
</span><span style="font-size:10.0pt;color:black">Principal Engineer</span><span style="font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:black">
<br>
</span><span style="font-size:10.0pt;color:black">Lockheed Martin Australia Information Systems and Global Services (IS&GS),</span><span style="font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:black">
<br>
</span><span style="font-size:10.0pt;color:black">a division of Lockheed Martin Australia Pty Limited
</span><span style="font-size:10.0pt;font-family:"Century Gothic","sans-serif";
color:black"><br>
</span><span style="font-size:10.0pt;color:black">Ph: 0419 035 319</span><span style="font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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