Archimate: a visual language allowing modelling of an organizations capabilities, processes, and systems.

BA: business analyst.  One who analyses organizational processes, often with a view to improving them.

BPM: business process management, through process analysis, a continuous improvement lifecycle, and the improvements or refinements that come from regular review.

BPML: business process management lifecycle, a continuous improvement cycle of iterative review and refinement.

BPMN: business process model and notation, a visual language allowing processes to be accurately and extensively modelled for analysis and improvements.

Cynefin: a management model looking at increasing levels of complexity.

DIKW: The data-information-knowledge-wisdom model.

EA: enterprise architecture, the modelling and analysis of organizational capabilities and how they are applied to create value through processes and associated systems.

ITIL: information technology infrastructure library, of best-practice standards for IT service management.

ITSM: information technology service management, usually associated with a set of best-practice standards.

PRINCE2: projects in controlled environments version 2, a project management methodology.

STEM: science-technology-engineering-mathematics disciplines and logics.

TOGAF: the Open Group Architecture Framework is a set of rules for the professional practice of enterprise architecture.

Wicked problems: Rittell & Webber’s theory of addressing complex and difficult problems with approaches other than traditional STEM logics.