Raju K S R

Haridas O K

 
 

Effective Regression Strategy for Telecom Systems

    
 

The purpose of this paper is to define an effective strategy for Regression Testing for complex Telecom Systems wherein the changes going into each release are high. The complexity of the Telecom Systems is growing day by day and whenever there is a new feature or enhancement going into the product, there is a need to ensure that the legacy functionality was not broken. This is being achieved through Regression Testing. With increase in the number of versions of the product, Regression Testing becomes tedious and costlier as there is significant increase in the number of Test Cases in the Regression Suite. Through this paper, the authors attempt to create a Test Strategy that optimizes the regression Test Cases without loosing the focus of Regression testing. This does not mean the elimination of Test Cases in order to shorten the overall test cycle and reduce the cost. This strategy gives a smart solution to build an optimized and effective Regression Suite.

The key attributes for the Effective Regression Strategy are:

  • Guidelines for adding Test Cases to the Regression suite
  • Test Coverage
  • Controlling the growth of Regression Suite
  • Categorizing Test Cases inline with ODC ( Orthogonal Defect Classification )
  • Effective Test Case Selection Criteria using available tools

This paper also proposes ways to reduce Test Execution cycle time. Reduction of cycle time can be achieved through:

  • Automation of Test Setup
  • Automation of Test Case Execution
  • Verification of Test Results using Tools
  • Batch Mode Execution using the tools

This paper also proposes ways to reduce Test Execution cycle time. Reduction of cycle time can be achieved through:

  • Top to bottom
  • Bottom to top
  • Odd numbered Test Cases followed by even numbered Test Cases.
   

Speaker's Background

Raju K S R has nine years experience in the Telecom Industry which includes seven years of Telecom Testing experience. He currently works with Motorola India Electronics Ltd and is involved in the Sub System Testing of CDMA Mobility Manager. He has previously worked on Telecom systems like Ericsson’s CDMA BSC, Ericsson’s PABX –MD110, AT&T-GTE’s GTD switch, and ITI’s Cable Saver.

Haridas O K has 11 years experience in the Telecom Testing Industry. He currently works with Motorola India Electronics Ltd and is involved in the Sub System Testing of CDMA Mobility Manager. He has worked on Testing of CDoT’s Digital Switching Systems, and VoIP systems.