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Software Engineering: 12
Software Process Metrics
Prof Neeraj Bhargava
Vaibhav Khanna
Department of Computer Science
School of Engineering and Systems Sciences
Maharshi Dayanand Saraswati University Ajmer
Process Metrics
• Software quality metrics are a subset of software
metrics that focus on the quality aspects of the
product, process, and project.
• Process Metrics are metrics that pertain to Process
Quality. They are used to measure the efficiency and
effectiveness of various processes.
• These characteristics can be used to improve the
development and maintenance activities of the
software.
• Process metrics pay particular attention on enhancing
the long term process of the team or organization.
• KLOC — classic metric that measures the size
of software by thousands of code lines.
• Number of function points (NFP) — a
measure of the development resources
(human resources) required to develop a
program, based on the functionality specified
for the software system.
• Software process quality metrics
– Error density metrics
– Error severity metrics
• Software process timetable metrics
• Software process error removal effectiveness
metrics
• Software process productivity metrics
NCE = The number of code errors detected by code inspections and testing.
NDE = total number of development (design and code) errors) detected in the development process.
WCE = weighted total code errors detected by code inspections and testing.
WDE = total weighted development (design and code) errors detected in development process.
NCE = The number of code errors detected by code inspections and testing.
NDE = total number of development (design and code) errors detected in the
development process.
WCE = weighted total code errors detected by code inspections and testing.
WDE = total weighted development (design and code) errors detected in
development process.
MSOT = Milestones completed on time.
MS = Total number of milestones.
TCDAM = Total Completion Delays (days, weeks, etc.) for all
milestones.
NDE = total number of development (design and code) errors) detected in the
development process.
WCE = weighted total code errors detected by code inspections and testing.
WDE = total weighted development (design and code) errors detected in
development process.
NYF = number software failures detected during a year of maintenance service.
WYF = weighted number of software failures detected during a year of maintenance
service.
DevH = Total working hours invested in the development of the software system.
ReKLOC = Number of thousands of reused lines of code.
ReDoc = Number of reused pages of documentation.
NDoc = Number of pages of documentation.
Assignment
• Explain the concept of Software Process
metrics
• Thank You

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Software engineering 12 process quality metrics

  • 1. Software Engineering: 12 Software Process Metrics Prof Neeraj Bhargava Vaibhav Khanna Department of Computer Science School of Engineering and Systems Sciences Maharshi Dayanand Saraswati University Ajmer
  • 2. Process Metrics • Software quality metrics are a subset of software metrics that focus on the quality aspects of the product, process, and project. • Process Metrics are metrics that pertain to Process Quality. They are used to measure the efficiency and effectiveness of various processes. • These characteristics can be used to improve the development and maintenance activities of the software. • Process metrics pay particular attention on enhancing the long term process of the team or organization.
  • 3. • KLOC — classic metric that measures the size of software by thousands of code lines. • Number of function points (NFP) — a measure of the development resources (human resources) required to develop a program, based on the functionality specified for the software system.
  • 4. • Software process quality metrics – Error density metrics – Error severity metrics • Software process timetable metrics • Software process error removal effectiveness metrics • Software process productivity metrics
  • 5. NCE = The number of code errors detected by code inspections and testing. NDE = total number of development (design and code) errors) detected in the development process. WCE = weighted total code errors detected by code inspections and testing. WDE = total weighted development (design and code) errors detected in development process.
  • 6. NCE = The number of code errors detected by code inspections and testing. NDE = total number of development (design and code) errors detected in the development process. WCE = weighted total code errors detected by code inspections and testing. WDE = total weighted development (design and code) errors detected in development process.
  • 7. MSOT = Milestones completed on time. MS = Total number of milestones. TCDAM = Total Completion Delays (days, weeks, etc.) for all milestones.
  • 8. NDE = total number of development (design and code) errors) detected in the development process. WCE = weighted total code errors detected by code inspections and testing. WDE = total weighted development (design and code) errors detected in development process. NYF = number software failures detected during a year of maintenance service. WYF = weighted number of software failures detected during a year of maintenance service.
  • 9. DevH = Total working hours invested in the development of the software system. ReKLOC = Number of thousands of reused lines of code. ReDoc = Number of reused pages of documentation. NDoc = Number of pages of documentation.
  • 10. Assignment • Explain the concept of Software Process metrics • Thank You