1. Nitin Reddy Katkam
nitin@knreddy.com
www.nitinkatkam.com

2.  Many different ways to go about it
 ISO 9126 standard
 OTSO
 CRE
 PORE
 Opal

3.  Focuses on
 Quality
▪ Functionality
▪ Reliability
▪ Usability
▪ Efficiency
▪ Maintainability
▪ Portability
 External & internal metrics
 Metrics themselves

4.  OTSO = Off the shelf option
 Phases
Search Screening Evaluation Analysis Deployment Assessment

5.  CRE = COTS-based Requirements
Engineering
 Phases
Identification Description Evaluation Acceptance

6.  PORE = Procurement-Oriented Requirements
Engineering
 Approach
 Iterative
 Template-based
▪ Requirements from product supplier data
▪ Requirements from supplier-led demo
▪ Requirements acquired from product exploration

7.  Phases
Identify goals Preparing
Selecting
& call for
best bid
requirements tenders