Term · 9. Business Processes & Methodology
Access Matrix
Definition
Tabular representation mapping identities (rows) to resources/entitlements (columns) — cells indicate access type (read, write, execute). Classic computer security model (Lampson 1971). Real systems use sparse implementations: ACLs (column-wise) or capability lists (row-wise).
- Application
- Modern equivalent: identity graph showing principals, resources, and edges. IGA platforms generate access matrices for compliance reports («show me all access for all users to system X»). ISPM tools compute access matrices for risk analysis.
Related terms
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Access Catalog
Self-service portal where users browse available access (roles, entitlements, applications) and submit requests. Modern …
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Access Control (AC)
Mechanism that determines whether a principal is permitted to perform a specific action on a specific resource. Includes …
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Access Management (AM)
Discipline of granting and enforcing access to resources after identity has been established. Encompasses authentication …
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Attribute-Based Access Control (ABAC)
Authorization model evaluating attributes of subject (role, department, clearance), object (sensitivity, owner), action …
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Authorization (AuthZ)
Process of deciding whether an authenticated principal is permitted to perform a requested action on a resource. Distinc …
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Birthright (BR)
Baseline access granted automatically to every identity of a specific type — typically minimal access required to functi …