softwarelifecycle.html

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<li><a href="taskfocussed.html">Task Focussed</a></li>					
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										<h1 class="no-margin">Supporting the Tasks of the Software Lifecycle</h1>
										<p>Task Focussed Development, Debug , Testing , and Change Management</p>
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						<h2>Task Focussed Development, Debug , Testing , and Change Management</h2>
						<p>Eclipse Free BIRD Tools is designed to provide maximum tool support for the common tasks in development, debug , testing , and change management of programs written with VTL and SMCubes.<br> 
<h3>Development</h3>
The  <a href="tfalm.html">task-focussed attribute lineage model</a> gives  us a fine grained view of dependencies between artifacts such as report cells and columns. <br><br>
It also allows us to exclude the hundreds or thousands of  elements (report cells, calculation, intermediate columns, input layer columns) which are not  related to our task.<br><br>

This allows us to answer questions such as <br>
<ul>
		<li>Which report cells will be affected if I change this line of VTL code?</li>					
		<li>Which report cells will be affected if  I delete or change the name of this input column?</li>

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  <br>

<h3>Debugging</h3> 
The  <a href="tfdlm.html">task-focussed data lineage model</a> gives us a fine grained view of the numbers and transactions used to calculate a value in a report cell.<br><br>
It also allows us to exclude the thousands or millions of elements (report cells, calculations, intermediate results, input layer column values) which are not relevant to our task.<br><br>
The data lineage model follows the familiar concepts of basic spreadsheets with  formula.<br><br>

This allows us to answer questions such as 
<ul>
		<li>How is the value 10 in report cell X calculated?</li>					
		<li>Which individual transactions and which numbers from those transactions went into making report cell X populated as 10? </li>
</ul>
  <br> 
<h3>Testing</h3>.
Our  <a href="testingmodels.html">testing model</a> allow us to answer  questions such as 
<ul>
		<li>Which business  concepts and scenarios are being tested by this  test?</li>					
		<li>Which sections of regulatory text are being checked in this test? </li>
		<li>What percentage of the code base are my tests covering? </li>
</ul>
<br> 
<h3>Change management</h3>
Our fine grained  <a href="tfalm.html">task-focussed attribute lineage model</a> of dependencies can be compared between versions of a program to answer questions such as 
<ul>
		<li>Which report cells have zero change in their calculation between version x and version y of a VTL program?</li>					
		<li>Did the usage of a particular  column in the input layer change between 2 versions of a VTL/SMCubes program? </li>
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