Glossary of terms used in the BTABoK.
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BTABoK glossary is a table containing a set of definitions for terms which are commonly used in the BTABoK. The glossary contains terms which are defined by IASA and terms which IASA use but may be defined by other organisations or persons. The source column in the table identifies the organisation or person the definition originates from.

Term Definition Related Concepts
Agility The ability to adapt quickly to change, and thus take advantage of the opportunities that change brings.  
Architecturally Significant Requirement    
Architecture Pattern A re-usable design often used in the context of a particular architecture style.  
Architecture Review Board    
Architecture Style The fundamental principles for designing a particular architecture. For example, multi-layered, service-oriented, domain-driven.  
ATAM Architecture Trade-off Analysis Method  
Balanced Scorecard (BSC) A a strategic planning and management system.  
Business Capability A particular ability or capacity that a business may possess or exchange to achieve a specific purpose or outcome.
Ulrich Homann, “A Business-Oriented Foundation for Service Orientation”, Feb. 2006
Business Model    
Business Requirement A statement which describes what a business needs in order to succeed in a given business context.  
Business Service    
CBAM Cost Benefit Analysis Method  
Component A part of a system, or a larger component.  
Continuous Deployment (CD)    
Continuous Integration (CI)    
Design Pattern    
Iron Triangle A well-known project management concept which shows the relationship between cost, time and scope.  
Legacy System    
Minimum Viable Product (MVP)    
Plan-Do-Check-Adjust (PDCA)    
Practice A practice is a group of professionals, most of whom are reasonably junior, who grow through learning a particular set of skills and apply those skills to create something of value.  
Product Owner    
Project Management Office (PMO)    
Quality Attributes    
Regression Test    
Risk Matrix    
SAAM Software Architecture Analysis Method  
Scrum Master    
SEI Software Engineering Institute at Carnegie Mellon University  
Service Contract    
SOA Service Oriented Architecture  
Strategic Roadmap    
Technical Debt    
Technical Service    
User Story    
Value Stream    
View A representation of one or more aspects of an architecture that illustrates how the architecture addresses the concerns held by one or more of its stakeholders.  
Viewpoint A collection of patterns, templates, and conventions for constructing one type of view. It defines the stakeholders whose concerns are reflected in the viewpoint and the guidelines, principles, and template models for constructing its views.  
Architecture Maturity    
Return of Investment (ROI)    
Total Cost of Ownership (TCO)    
Robot Process Automation (RPA) A technique used to automate manual processes performed on a software user interface.  
DevOps A set of practices intended to reduce the time between committing a change to a system and the change being placed into normal production, while ensuring high quality.  
Enterprise Resource Management (ERP)    
Capital Expenditure (CAPEX) Capital expenditures (CapEx) are funds used by a company to acquire, upgrade, and maintain physical assets such as property, plants, buildings, technology, or equipment.
Operational Expenditure (OPEX) Operating expenses are the costs that a company incurs for running its day-to-day operations. As such, they don’t apply to any costs related to the production of goods and services.
Rapid Value Management An iterative approach to continual value realization to ensure programs and projects are on-track to meet the objective they target.  
Non-Governmental Organization (NGO) A group that functions independently of any government. It is usually non-profit. NGOs, sometimes called civil society organizations, are established on community, national, and international levels to serve a social or political goal such as a humanitarian cause or the protection of the environment.
Business As Usual (BAU)    
Heat Map A visual representation of data which uses colors to indicate different values.  
CRUD Short hand for Create, Read, Update and Delete. Often used in reference to data.  
Unit of Competitive Advantage (UCA)    
Unit Cost A unit cost is a total expenditure incurred by a company to produce, store, and sell one unit of a particular product or service.
Customer Segment A categorization of customers into specific groups based on shared characteristics, behaviors, or preferences.  
Operating Model    
Business Unit    
Organizational Network Analysis (ONA) A structured way to visualize how communications, information, and decisions flow through an organization.
Architecture Practice    
Center of Excellence    
Competency Pillar    
Competency Model    
European e-CF An IT skills framework which lists architecture as a set of skills aligned with a plan, build, run, manage philosophy.  
Innovation The desire and understanding of trying new things with the shared understanding that many, if not most, will fail.  
Motivation How staff is rewarded, punished, and influenced. The primary driver for positive culture is that self-motivation of employees is respected and acted upon.  
Risk-Tolerance The level of risk that is acceptable in any aspect of work in the organization.  
SATIR Change Model    
Cultural Archetype    
Westrum Culture Diagnostic (WCD) A tool used to understand culture  from a information sharing, learning, responsibility, collaboration, failure and ideas perspective.  
Culture Map A tool to help understand the dynamics and implementation of culture.  
Customer Journey    
Customer Experience    
Architecturally Significant Decision (ASD)    
Module A sub-component of a system.  
Cognitive Bias The ways in which human biases impact decisions.  
Technical Product Owner    
Decision Registry   Decisions
Architecture Deliverable   Deliverables
Artifact   Deliverables
Architecture Methodology    
Value Model    
Capability Map    
Business Case   Objectives, Investment Planning
Target State    
Principle   Principles
Request for Information (RFI) A formal process for gathering information from potential suppliers of a good or service.
Request for Proposal (RFP) A business document that announces a project, describes it, and solicits bids from qualified contractors to complete it.
Request for Quote (RFQ) A process in which a company solicits select suppliers and contractors to submit price quotes and bids for the chance to fulfill certain tasks or projects.
Request for Tender (RFT) An invitation to bid for a project. Tendering usually refers to the process whereby governments and financial institutions invite bids for large projects that must be submitted within a finite deadline.
SAFe Scaled Agile Framework.  
YAGNI Short for You Aren’t Going to Need It  
SOLID Design principles based on Single responsibility, Open/closed, Liskov substitution, Interface segregation and Dependency inversion  
Feedback Loop    
System Mapping    

BTABoK 3.0 by IASA is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Based on a work at