Quality Assurance
Software quality assurance is (also known as QA) a sequence of tasks to prevent defects and ensure that the techniques, methods, approaches, and processes are designed for a specific application must be implemented correctly. This is an ongoing process within the development of a software system.
The development of units of an application is checked under the quality assurance specifications in the sequence of their development.
Quality assurance test ensures the development of high-quality software because of its main focus on the high-quality processes, good quality management system and periodic conformance audit during the development of software. It is a managerial tool includes planned and systematic activities and documentation to prevent problems related to quality.
The responsibility of quality assurance is not of any specific team, but it is a responsibility of each member of the development team.
- Quality assurance prevents defects.
- Quality assurance is process oriented.
- Quality assurance is proactive in a process and preventive in nature.
- Quality assurance is a managerial tool.
- Each developer is responsible for quality assurance.
Quality Control
Quality Control also known as QC is a sequence of tasks to ensure the quality of software by identifying defects and correction of defects in the developed software. It is a reactive process, and the main purpose of this process is to correct all types of defects before releasing the software. The process is done by eliminating sources of problems (which cause to low the quality) through the corrective tools so that software can meet customer's requirements and high quality.
The responsibility of quality control is of a specific team which is known as a testing team that tests the defects of software by validation and corrective tools.
- Quality Control provides identification of defects.
- Quality Control is product oriented.
- Quality Control is a corrective tool.
- Testing team is responsible for Quality control.
- Quality Control is a reactive process.
Difference between Quality Assurance and Quality Control
|
Points |
Quality Assurance |
Quality Control |
|
Definition |
QA is a group of
activities which ensures that the quality of processes which is used during
the development of the software always be maintained. |
QC is a group of
activities to detect the defects in the developed software. |
|
Focus |
The focus of QA is to prevent defects in the developing software by paying
attention to processes. |
The focus of QC is
to identify defects in the developed software by paying attention to testing
processes. |
|
How |
Establishment of the
high-quality management system and periodic audits for conformance of the
operations of the developing software. |
Detecting and
eliminating the quality problem elements by using testing techniques and
tools in the developed software. |
|
What |
QA ensures
prevention of quality problem elements by using systematic activities
including documentation. |
QC ensures
identification and elimination of defects by using processes and techniques
to achieve and maintain high quality of the software. |
|
Orientation |
QA is process oriented. |
QC is product oriented. |
|
Type of process |
QA is a proactive
process. It concerns to improve development so; defects do not arise in the
testing period. |
QC is a reactive
process because it concerns to identify defects after the development of
product and before its release. |
|
Responsibility |
Each and every
member of the development team is responsible for QA |
Only the specific
testing team is responsible for QC |
|
Example |
Verification is the
example of QA |
Validation is the
example of QC |
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