Requirement Specification Statement
(Redirected from Single Requirement Specification)
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A Requirement Specification Statement is an atomic formal Requirement Specification that expresses a single requirement with specific conditions and measurable criteria.
- AKA: Individual Requirement, Atomic Requirement, Requirement Statement, Single Requirement Specification, Requirement Item.
- Context:
- It can typically express Requirement Intent through shall statements and must statements.
- It can typically define Requirement Conditions through preconditions and postconditions.
- It can typically establish Requirement Criteria through acceptance thresholds and performance metrics.
- It can typically ensure Requirement Clarity through unambiguous languages and precise terminologys.
- It can typically enable Requirement Testability through verifiable conditions and measurable outcomes.
- It can typically support Requirement Traceability through unique identifiers and reference links.
- It can typically maintain Requirement Atomicity through single-concept focuses and indivisible statements.
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- It can often include Requirement Priority through importance levels and urgency indicators.
- It can often specify Requirement Source through stakeholder references and origin documentations.
- It can often define Requirement Type through functional classifications and quality attributes.
- It can often establish Requirement Dependency through prerequisite references and related requirements.
- It can often contain Requirement Rationale through justification texts and business reasons.
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- It can range from being a Simple Requirement Specification Statement to being a Complex Requirement Specification Statement, depending on its requirement statement complexity.
- It can range from being a Functional Requirement Specification Statement to being a Non-Functional Requirement Specification Statement, depending on its requirement statement type.
- It can range from being a Mandatory Requirement Specification Statement to being a Optional Requirement Specification Statement, depending on its requirement statement priority.
- It can range from being a User Requirement Specification Statement to being a System Requirement Specification Statement, depending on its requirement statement level.
- It can range from being a Natural Language Requirement Specification Statement to being a Formal Language Requirement Specification Statement, depending on its requirement statement notation.
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- It can be part of Requirement Specification Documents through requirement sections and requirement lists.
- It can connect to Test Cases through verification mappings and validation procedures.
- It can interface with Design Elements through implementation mappings and solution traceabilitys.
- It can communicate with Change Requests through modification trackings and impact analysises.
- It can synchronize with Requirement Management Tools through database entrys and attribute trackings.
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- Example(s):
- Functional Requirement Specification Statements defining system behaviors, such as:
- User Authentication Requirement Specification Statement: "The system shall authenticate users using two-factor authentication within 3 seconds."
- Data Processing Requirement Specification Statement: "The system shall process incoming transactions at a rate of 1000 per second."
- User Interface Requirement Specification Statement: "The system shall display error messages in red text for 5 seconds."
- Performance Requirement Specification Statements establishing quality metrics, such as:
- Response Time Requirement Specification Statement: "The system shall respond to user queries within 200 milliseconds."
- Throughput Requirement Specification Statement: "The system shall handle 10,000 concurrent users."
- Availability Requirement Specification Statement: "The system shall maintain 99.9% uptime."
- Security Requirement Specification Statements defining protection measures, such as:
- Encryption Requirement Specification Statement: "The system shall encrypt all data at rest using AES-256."
- Access Control Requirement Specification Statement: "The system shall enforce role-based access control."
- Audit Requirement Specification Statement: "The system shall log all administrative actions."
- Constraint Requirement Specification Statements imposing design limitations, such as:
- Platform Requirement Specification Statement: "The system shall run on Linux Ubuntu 20.04 or later."
- Integration Requirement Specification Statement: "The system shall integrate with SAP ERP via REST API."
- Compliance Requirement Specification Statement: "The system shall comply with GDPR regulations."
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- Functional Requirement Specification Statements defining system behaviors, such as:
- Counter-Example(s):
- Requirement Specification Documents, which are document collections rather than individual statements.
- User Storys, which are narrative descriptions rather than formal requirement statements.
- Design Decisions, which specify solution choices rather than requirement conditions.
- Implementation Details, which describe how to build rather than what to build.
- See: Requirement Specification, Requirement Specification Document, Functional Requirement, Non-Functional Requirement, Requirement Attribute, Requirement Template, Requirement Pattern.