System Development Life Cycle
nounid
4321·updated Aug 30, 2026verified· unreviewed
The scope of activities associated with a system, encompassing the system’s initiation, development and acquisition, implementation, operation and maintenance, and ultimately its disposal that instigates another system initiation.
MWE
Attested in
NIST SP 800-171 Rev 3 - Protecting CUI in Nonfederal Systems
03.11.01.b ¶ 103.15.02.c ¶ 103.16.01 ¶ 203.17.01.c ¶ 23.2.2 ¶ 25
Classifications
Entity Type
Process0%rule-basedmulti_axis_classifier_low_confidence.v1
Sensitivity
—90%llm-generatedllm:claude-haiku-4-5
Information Class
—95%llm-generatedllm:claude-haiku-4-5
Variants
- acronym
- SDLC
- synonym
- system design life cycle
- plural
- System Development Life Cycles
- possessive
- System Development Life Cycle's
- pluralpossessive
- System Development Life Cycles'
Framework definitions
- §1
- The phases deployed in the development or acquisition of a software system Scope Note: SDLC is an approach used to plan, design, develop, test and implement an application system or a major modification to an application system. Typical phases of SDLC include the feasibility study, requirements study, requirements definition, detailed design, programming, testing, installation and post- implementation review, but not the service delivery or benefits realization activities.
- §1
- A series of stages that the process of system development goes through in order to design and produce a system.
- §1
- A series of stages that the process of system development goes through in order to design and produce a system.
- §1
- A series of stages that the process of system development goes through in order to design and produce a system.
- §1
- The scope of activities associated with a system, encompassing the system’s initiation, development and acquisition, implementation, operation and maintenance, and ultimately its disposal that instigates another system initiation.
- §1
- The scope of activities associated with a system, encompassing the system’s initiation, development and acquisition, implementation, operation and maintenance, and ultimately its disposal that instigates another system initiation.
- §1
- The scope of activities associated with a system, encompassing the system’s initiation, development and acquisition, implementation, operation and maintenance, and ultimately its disposal that instigates another system initiation.
- §1 · attested_usage_pack_match
- No definition is given in NIST SP 800-171r3. The term is attested in use at 5 citations in that document; a definition is pending curation.Increment 2: attested in 800-171r3 without a glossary definition.
- §1 · legacy_primary
- The scope of activities associated with a system, encompassing the system’s initiation, development and acquisition, implementation, operation and maintenance, and ultimately its disposal that instigates another system initiation.DR-088 backfill from the noun definition column
Outgoing relationships
No outgoing triples
This term is not the subject of any RDF-style relationship yet.
Incoming relationships
No incoming triples
No other term currently asserts a relationship to this one.