<text>Level the ground where the house is to stand, lay forms for the foundation and pour concrete. Estimated time to completion is shown in the value pane of the math window. After the foundtion is complete, the next task &BuildUpperStructure can begin.</text>
<val>3.3</val></cell>
<cell>
<cname>BuildUpperStructure</cname>
<text>Frame the walls, hang the ceiling joists, and rafters. Install siding and insulation, add the roof. After this task is done, three tasks may be started:
&ElectricalWork
&PlumbingWork
&CompleteExterior</text>
<val>17.5</val></cell>
<cell>
<cname>ClearLand</cname>
<text>Remove everything from the site that is not rooted in the ground. Time to complete is shown in the value pane in days.
Once the land is cleared, go perform the task called &BuildFoundation.</text>
<val>1.5</val></cell>
<cell>
<cname>CompleteExterior</cname>
<text>Lay brick, paint siding and exterior trim. Install garage door, exterior doors, skyectrical outlet and switch plates, and household computer. Install carpet, tile, and interior window treatments.
When this task is done go to &JobDone</text>
<val>12</val></cell>
<cell>
<cname>CompleteInterior</cname>
<text>Install drywall, interior trim, cabinets, countertops, stairwell, appliances, trim and caulk sinks, showers, and tubs. Install interior plumbing and light fixtures, electrical outlet and switch plates, and household computer. Install carpet, tile, and interior window treatments.
When this task is done go to &JobDone</text>
<val>10</val></cell>
<cell>
<cname>CriticalPath</cname>
<text>This cell compute the time taken by the longest (in terms of days) path through the project.</text>
<val>45.3</val>
<form>max(path1,path2,path3)</form></cell>
<cell>
<cname>ElectricalWork</cname>
<text>Install wiring, switch boxes, outlets, room light sockets, attic fan, network cable, and connectors, and inlet panel. Connect house to temporary power. When this task is done, the task &CompleteInterior may be begun (assuming other necessary prerequisites are met).</text>
<val>9</val></cell>
<cell>
<cname>home</cname>
<text>This web describes the activities involved in building a small house, and computes the time necessary to build the house, assuming some of the activities may take place in parallel.
The relationship between tasks is described by this web. Each task contains hypertext links to those tasks which may be started once the present task is done. The final task is a purely formal one which takes no time and is called &JobDone.
By following hypertext links starting with &ClearLand, it is posssible to take three different paths to &JobDone.
The time required to complete each path is computed in three cells called &path1, &path2, and &path3.
The so-called critical path is the one with the largest value after calculation. The cell &CriticalPath contains the time necessary to complete the longest path.</text>
<val>1.234</val></cell>
<cell>
<cname>JobDone</cname>
<text>Ready to move in!</text></cell>
<cell>
<cname>Landscaping</cname>
<text>This task includes hauling in soil for the yard, planting trees and shrubs, berming the road access, acquiring and laying the flagstoon walk, preparing the garden soil, and digging, lining, and planting the borders of the pond.
When landscaping is done, go to &JobDone.</text>
<val>11</val></cell>
<cell>
<cname>path1</cname>
<text>The cells traversed in a trace of path1 are:
ClearLand
BuildFoundation
BuildUpperStructure
ElectricalWork
CompleteInterior
JobDone</text>
<val>41.3</val>
<form> ClearLand+
BuildFoundation+
BuildUpperStructure+
ElectricalWork+
CompleteInterior
</form></cell>
<cell>
<cname>path2</cname>
<text>The cells traversed in path two are:
ClearLand
BuildFoundation
BuildUpperStructure
PlumbingWork
CompleteInterior
JobDone</text>
<val>40.3</val>
<form> ClearLand+
BuildFoundation+
BuildUpperStructure+
PlumbingWork+
CompleteInterior
</form></cell>
<cell>
<cname>path3</cname>
<text>Path three includes the following cells:
ClearLand
BuildFoundation
BuildUpperStructure
CompleteExterior
Landscaping
JobDone</text>
<val>45.3</val>
<form> ClearLand+
BuildFoundation+
BuildUpperStructure+
CompleteExterior+
Landscaping
</form></cell>
<cell>
<cname>PlumbingWork</cname>
<text>Lay water supply pipes, drain pipes, hot water heater, install sinks, showers, tubs, and connect to pipes, trench and connect to sewer. Install hot water baseboard heating, connect thermostats. When this work is done, the &CompleteInterior work may begin.</text>
