Tutorial: Working with a Measurement Series 
As a rule, code coverage measurements are done repetitively. For example, your development group may measure code coverage weekly to guide test development and execution. Such series of measurements usually repeat the same configuration and measure the same entities.
The Coverage API supports regular code coverage measurement with the measurement series. A measurement series simplifies the task of performing regular measurements by allowing you to do the following:
Define default configurations for calculating coverage results
Define default sets of entities for which coverage is to be calculated
Easily execute measurements and calculate coverage results using the defaults
Manage measurements and results as chronologically ordered sets in a series.
The following tutorial sections show you how to create and use a measurement series.
Step 1: Creating or Loading a Measurement Series
Step 2: Setting Defaults for a Measurement Series
Step 3: Creating and Running a Measurement in a Measurement Series
Step 4: Calculating Coverage Results in a Measurement Series
Step 5: Saving Measurements and Results in a Measurement Series
Step 6: Finding Measurements and Results in a Measurement Series
Measurement Series Tutorial: Sample Program
Special topics relating to measurement series include these:
Handling Exceptions in the Code Coverage API