Page 203 - DCAP305_PRINCIPLES_OF_SOFTWARE_ENGINEERING

Unit 9: Metrics

The process consists of 4 main phases: Notes
1. Project Inception: Elicits the software requirements and determines the project’s goals
and scope. Sprints for executing iterations of the following three phases are defined
based on this information.
2. UxD Design: Designs the application’s human-computer interface.
3. Software Engineering: Consists of implementing the application interface and backend
(business and data management layers). This also called develop mentor implementation.
4. Quality Assurance: Performs regression and acceptance testing before customer delivery.
Software
Project Inception UxD Design Quality Assurance
Engineering
User Experience Interactive
Scope Definition Regression Tests
Design Engineering
Initial Requirements Backend
Gathering Client Signoff Development Release Acceptance

Metrics Program Design
Team members are off course responsible for collecting the data. The Scrum Master is
the person responsible for summarizing the metrics data and makes it visible to all team
members. Team members are the most important stakeholders of the metrics program, thus,
the metrics results should be presented to the team members the same way as the user stories
(requirements) are discussed and analyzed by the team.
From the metrics standpoint, Management identified two main organizational objectives:
1. Control the number of defects delivered to the customer.
2. Control project time and cost.
Based on these two goals, we used the GQM methodology to build up the Goal/Question/
Metrics trees and determine the software metrics based on organizational objectives. Figure
2 shows the ensuing metrics for the defects goal.

Control the number of defects
Goal delivered to the customer

How
Question Where is effective is How many What types
the origin the defects are of defects
of defects? injected? are injected?
testing?

Pareto
Metric Pareto # defects/ # of defects distribution
distribution of # bugs injected per of defects
defects per origin sprint
per origing

Target
Value TBD TBD TBD TBD
Questions
1. How can deign metrics program

2. Describe the related work of matrices

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