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Difference between ISO9000 and SEI-CMM.
ISO 9000 and SEI-CMM are both quality standards used to assess and improve organizational processes. ISO 9000 is a general-purpose quality management standard applicable across industries, while SEI-CMM is specifically designed for software organizations to measure process maturity.
ISO 9000
ISO 9000 is an international standard for quality management and quality assurance, published by the International Organization for Standardization. It certifies that companies are documenting and following the quality system elements needed to run an efficient and quality-driven system. ISO 9000 is universally accepted across many countries and industries.
The ISO 9000 family consists of several related standards −
SEI-CMM
SEI-CMM (Software Engineering Institute − Capability Maturity Model) is specifically designed for software organizations. It certifies at which maturity level an organization follows and maintains quality standards. CMM defines five maturity levels, each representing a higher degree of process discipline −
Key Differences
| Feature | ISO 9000 | SEI-CMM |
|---|---|---|
| Target Industry | All industries (manufacturing, services, etc.) | Software industry specifically |
| Focus | Customer-supplier relationship, consistent delivery | Improving software development processes |
| Recognition | Universally accepted across many countries | Primarily used in the USA and software firms |
| Maturity Levels | Single acceptance level (pass/fail) | Five levels: Initial, Repeatable, Defined, Managed, Optimized |
| Approach | Guidelines on principles and safeguards | Specifies what to follow at each maturity level |
| Validity | Certificate valid for 3 years | Certificate valid for 3 years |
| Objective | Ensure consistent quality delivery | Continuous process improvement |
Conclusion
ISO 9000 is a broad quality management standard applicable to any industry, focusing on consistent delivery and customer satisfaction. SEI-CMM is specific to software organizations, providing a five-level maturity framework for continuous process improvement. Both certifications are valid for three years and help organizations demonstrate their commitment to quality.
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