All terms
Every concept and collection in one alphabetical list, with its definition,
any alternative labels, and the collections it belongs to. Collections are
marked as such; the hierarchy shows where the concepts sit.
Concepts and collections are listed together on purpose. Four collections are
not named “…Collection” — Tech Stack, Note Types, Meal Domain and Semantic Web
Standards — so scanning A–Z for one of those would otherwise mean already
knowing it was a collection.
A · B · C · D · E · F · G · H · I · K · L · M · N · O · P · Q · R · S · T · U · V · W · Y
A
- ACE Organization (also: ACE Folders) — The folders of Atlas, Calendar, and Efforts organizes our thinking in an Obsidian vault based on Ideaverse.
- Action — Something to do for an effort, project, area, or interest.
In: Note Types
- Activity Event — Something that happened related to activity or exercise.
- Add Folder (also: Obsidian Inbox, Plus Folder) — The + (Add) folder is the PKM “inbox” space for new and incoming notes.
- Advanced URI — Control Obsidian features using special URIs to automate workflows.
- Agent Event — Something that happened during agent processing.
- Alert Event — An exception condition raised by a device threshold setting, or other metric.
- App — A software application.
In: Note Types
- App Event — Something that happened during app processing.
- App Intent — A declared action the system exposes to Shortcuts, Siri, or Spotlight.
- Apple Health — Health data from Apple Health via the HealthKit framework.
- ARC Ideation (also: ARC Framework) — The stages for the natural flow of ideas in the creative process (Add, Related, Communicate).
- Archive Folder — The top-level
z folder space in Obsidian includes Archive (inactive) notes.
- Area — An ongoing sphere of responsibility or activity with a standard to be maintained over time, without a defined completion date.
In: Effort Collection, Note Types
- Atlas Folder (also: Knowledge Folder) — A major space within an Obsidian vault containing notes about knowledge (“what you know”).
B
- Base — A database with table, grid, or list views of a collection of notes with selected properties and formulas with associated query filters, group, and sort criteria.
- Bases — A core plugin that creates custom views to edit, sort, and filter files using properties.
- Blood Pressure Event (also: BP Event) — Recording of current blood pressure with systolic/diastolic readings.
- Book — A book used as a source in a PKM system.
- Book Search — Query book by title, author, publisher, or ISBN, and get book information via Google Books API for properties.
- Breakfast — The first meal of the day.
In: Meal Domain
C
- Calendar — A major space for time-based notes.
- Calendar Folder (also: Time Folder) — The Calendar (Time) folder is the PKM knowledge space for time-based notes.
- Canvas — A core plugin that enables you to arrange and connect notes on an infinite canvas.
- Claude AI — Claude AI LLM (Sonnet or Opus models) that support a PKM system.
- Claude Chat — Chat interface for Claude AI.
- Claude Cowork — Agentic interface for Claude AI that works directly with files, apps, and scheduled tasks.
- Claude Desktop — Desktop app for Claude AI.
- Clipping — A clipping captured by the Obsidian Web Clipper browser extension that was developed by Steph Ango (Obsidian CEO).
In: Note Types
- Cluster — Notes and artifacts assembled around a single subject, where each member is a part of the whole rather than one more instance of a kind.
- Concept — A unit of thought in a knowledge organization system.
In: Concept Collection, Knowledge Collection, Note Types
- Concept Collection (collection, 10 members) — The languages, standards and artifacts a concept is expressed in, rather than notes about any one concept. Cuts across the hierarchy instead of following it.
- Context Graph — A structured network of entities (nodes) and their relationships (edges), typically machine-readable, used to represent and query interconnected context.
- Cypher — A declarative query language for graph databases, used to create, read, update, and query nodes and relationships in Neo4j.
In: Concept Collection, Tech Stack
D
- Dataview — An Obsidian query language for filtering, sorting, and extracting data from Markdown pages.
- Day — A single calendar day with 24 hours, the atomic unit of the temporal hierarchy of time periods (or time horizons).
In: Day Collection
- Day Actions — A support note within a Day Cluster listing discrete Action items tracked for that day.
In: Day Collection
- Day Analysis — Overall analytical synthesis of a day across domains.
In: Day Collection
- Day Base — An Obsidian base file with multiple views for a day.
In: Day Collection
- Day Board — An Obsidian Kanban board note for the day.
In: Day Collection
- Day Canvas — An Obsidian infinite Canvas with a visual interface for notes, cards, images, groups, and/or arrow connections.
In: Day Collection
- Day Cluster — Everything the system produces about a single day, partitioned into four unlike parts: core, support, health, and visual.
In: Day Collection
- Day Cluster Core — The core set of daily notes within a Day Cluster - typically Index, Plan, Log, Journal, Review, and Analysis.
In: Day Collection
- Day Cluster Health — The health-related data and notes within a Day Cluster, capturing tracked health events for that day.
In: Day Collection
- Day Cluster Support — The supporting notes within a Day Cluster that assist the core notes, such as DayActions and DayLinks.
In: Day Collection
- Day Cluster Visual — The visual tools and generated diagrams associated with a Day Cluster, used to represent the day’s structure or data graphically.
In: Day Collection
- Day Collection (collection, 26 members) — The Day Cluster’s parts listed flat, together with Day and Day Cluster themselves. It enumerates by hand what the hierarchy already derives, and the two have drifted: 26 members against 25 concepts under Day Cluster, with DayMeeting present in the tree and absent here. Where they disagree the hierarchy is authoritative.
- Day Diabetes — The record of diabetes-relevant data for a day (glucose, insulin, carbs, events).
In: Day Collection
- Day Diabetes Analysis — Interpretation of a day’s diabetes data.
In: Day Collection
- Day Diagram — An Obsidian note that renders Mermaid diagrams using embedded code blocks.
In: Day Collection
- Day Drawing — An Obsidian Excalidraw drawing note with an infinite drawing space, tools, and plugins. embedded Base views, Dataview, and Datacore queries for a day.
In: Day Collection
- Day Health — The health-related summary for a day.
In: Day Collection
- Day Index (also: Day Hub, Day Note) — The index note that links all artifacts for a given day.
In: Day Collection
- Day Journal — Free-form reflective writing about a day.
In: Day Collection
- Day Links — A support note within a Day Cluster capturing links or references relevant to that day.
In: Day Collection
- Day Log — A chronological record of what actually happened during a day.
In: Day Collection
- Day Meal — A single planned or eaten meal within a day.
- Day Meal Plan — The planned set of meals for a single day.
In: Day Collection, Meal Domain
- Day Meeting — An event with attendees, agenda, topics, decisions, and actions.
- Day Mindmap — An Obsidian Excalidraw drawing note using the Mindmap plugin.
In: Day Collection
- Day Plan — The plan of intended activities and priorities for a day.
In: Day Collection
- Day Review — A structured retrospective evaluating a completed day.
In: Day Collection
- Day Schedule — The time-blocked calendar of appointments and commitments for a day.
In: Day Collection
- Day View — An Obsidian view note with embedded Base views, Dataview, and Datacore queries for a day.
In: Day Collection
- Decade — A ten-year span used for long-range life planning.
In: Decade Collection
- Decade Collection (collection, 1 member) — Decade alone. No decade notes are generated and no narrower concepts exist, so this records an intention rather than a grouping.
- Device Event — Something that occurred with a device.
- Dexcom Data — Diabetes data from Dexcom G7 15-day continuous glucose monitor (CGM) sensor.
- Diabetes Event — Something that happened related to Diabetes.
- Dinner (also: Supper) — The evening meal.
In: Meal Domain
- DMP Meal Plan — A weekly meal plan sourced from Diabetes Meal Plans (dmpmembers.com), a diabetes recipe and meal-plan subscription service.
In: Meal Domain
- Draft — A new draft note received from the Drafts app via the Obsidian action group pipeline.
In: Note Types
E
- Effort Cluster — Notes and artifacts assembled around a single effort, rather than every note that happens to mention it.
In: Effort Collection
- Effort Collection (collection, 5 members) — The effort vocabulary rather than one effort’s notes: the kinds of effort, the cluster that holds an effort’s notes, and the folder they live in. It holds no member of any Effort Cluster, which is why it does not resemble the period collections.
- Effort Index — The index note that links all artifacts for an effort.
- Effort Journal — Free-form reflective writing about an effort.
- Effort Log — A chronological record of what actually happened during an effort.
- Effort Plan — The plan of intended activities and priorities for an effort.
- Effort Review — A structured retrospective evaluating an effort.
- Efforts Folder (also: Effort Folder) — A unit of directed work toward an outcome, such as a project or initiative.
In: Effort Collection
- EKG Event (also: ECG Event) — Recording an EKG reading from Apple Watch EKG app or Kardia 6-lead EKG device.
- Event — Something that happened.
- Excalidraw — A sketching tool with rich capabilities for drawings with many extensions for scripts for additional features.
- Extra Folder (also: Support Folder) — The top-level
x folder space in Obsidian includes Extra or Support resources.
F
- FastAPI — A modern, high-performance Python web framework for building APIs.
In: Tech Stack
- Finance — An area that includes all aspects of your finances.
- Focus — A note or tag marking current priority attention within the PKM system.
In: Note Types
- Food — A source of nutrition for something eaten as a meal or snack.
G
- Glooko Data — Diabetes data from Insulet-provided Glooko website that contain Omnipod 5 insulin pump data that is also integrated with Dexcom data for glucose, meals, and other events.
- Glossary — A list of concept terms and definitions.
- Glucose Event — Something that happened related to Glucose.
- Graph Database — Graph databases that support a PKM system.
H
- Health — An area that includes all aspects of your health.
- Health Data — Personal health and diabetes data from websites and HealthKit collected from my wearable devices and iOS apps.
- Health Event — Something that happened related to Health.
- Hummingbird — A lightweight, Swift-native server-side web framework for building HTTP APIs and services.
In: Tech Stack
I
- Idea — An idea about something to explore curiosity, research interests, support areas, or identify opportunities.
In: Note Types, Spark Collection
- Idea Emergence — The process of how ideas you encounter go from “nothingness to somethingness”, and how they grow in richness, complexity, and meaning over time.
- Ideaverse — The universe of linked notes about knowledge, concepts, and ideas in a PKM system.
- Ideaverse Collection (collection, 2 members) — The vault as a whole and the notes inside it. Two members naming the container rather than its contents, which is a different job from every other collection here.
- Ingredient — An individual food item or component used in the preparation of a recipe.
In: Meal Domain, Recipe Collection
- Insulin Event — Something that happened related to Insulin.
- Interest — A note capturing an ongoing topic of curiosity or attention that is not (yet) an active Project or Area of responsibility.
In: Effort Collection, Note Types
- ISO Standard — A standard published by the International Organization for Standardization (ISO).
In: Semantic Web Standards
K
- Knowledge — Information, understanding, and skill acquired through experience, learning, or inference, retained and organized so it can be applied, communicated, or built upon.
In: Knowledge Collection
- Knowledge Collection (collection, 4 members) — What knowledge itself is called here, as distinct from the containers that hold it: Knowledge, the Concept and Topic it is expressed as, and the Knowledge Graph it is stored in. Cuts across the hierarchy instead of following it.
- Knowledge Graph — A structured network of entities (nodes) and their relationships (edges), typically machine-readable, used to represent and query interconnected knowledge.
In: Concept Collection, Knowledge Collection, Semantic Web Standards
- Knowledge System — A system of organization, navigation, and access for knowledge.
- Knowledge System Architecture (also: KSA) — A PKM system that integrates Obsidian Notes, Neo4j Graph Database, Claude AI, and diabetes websites with Swift and Python APIs, services, scripts, commands, and agents.
L
- Life — The full lifespan, the top temporal (time) horizon.
In: Life Collection
- Life Collection (collection, 1 member) — Life alone, the top time horizon. No narrower concepts exist, so this records an intention rather than a grouping.
- Local REST API with MCP — Support automation for notes using REST API for apps or MCP server for AI agents.
- Lunch — The midday meal.
In: Meal Domain
M
- Map (also: MOC, Map of Content) — A note used to think, plan, organize, and/or navigate a group of related notes.
- Meal — An eating occasion consisting of one or more foods or recipes consumed at a particular time.
In: Meal Domain, Note Types
- Meal Domain (collection, 16 members) — Every concept in the meal-planning domain, across both the Meal and the Recipe side: the occasion, the meal kinds, the plans at each horizon, and the parts a recipe is assembled from. Wider than any one meal plan.
- Meal Event — Something that happened related to a Meal.
- Meal Plan — A structured plan of meals over a defined period.
In: Meal Domain, Note Types
- Meditation Event — Recording information from meditation session.
- Memory Graph — A structured network of entities (nodes) and their relationships (edges), typically machine-readable, used to represent and query interconnected short-term and long-term memory.
- Menu — A curated list of dishes offered or planned.
- Metadata — Structured data that describes, identifies, or provides context for another resource, such as a note, concept, or file.
In: Concept Collection, Semantic Web Standards
- Month — A calendar month grouping weeks and days.
In: Month Collection
- Month Cluster — Everything the system produces about a single month — its plan, log, review, journal and health notes — taken as one whole rather than many notes of one kind.
- Month Collection (collection, 5 members) — Month and four of the five parts of a Month Cluster, listed flat. It enumerates by hand what the hierarchy already derives and is incomplete against it; where the two disagree the hierarchy under Month Cluster is authoritative.
- Month Health — The health-related summary for a month.
- Month Journal — Reflective writing about a month.
In: Month Collection, Quarter Collection
- Month Log — A record of what happened over a month.
In: Month Collection
- Month Plan — The plan of intended priorities for a month.
In: Month Collection
- Month Review — A structured retrospective evaluating a completed month.
In: Month Collection
- Movie — A movie used as a source in a PKM system.
N
- Neo4j — A native graph database management system that stores and queries data as nodes, relationships, and properties.
In: Tech Stack
- Neo4j Desktop — Neo4j graph database that support a PKM system.
- Note — A unit of knowledge in a PKM system.
- Note Event — Something to record related to a note associated with an event.
- Note Types (collection, 20 members) — The concepts used as note types in the vault.
- Nutrition — The nutrient content (e.g. calories, carbohydrates, fat, fiber) associated with a meal, recipe, or ingredient.
In: Meal Domain, Recipe Collection
O
- Obsidian Notes — A major PKM system for linked notes.
In: Ideaverse Collection
- Obsidian Plugin — A core or community plugin that extends available functions using JavaScript and the Obsidian API.
- Obsidian Settings — A hidden folder (
.obsidian) in every Obsidian vault that contains settings for Obsidian and its plugins.
- Obsidian Template — An Obsidian template using the Templater plugin with JavaScript that determines the structure, layout, and configuration for various types of notes in the PKM system.
- Ontology — A formal, explicit specification of a shared conceptualization - the concepts, properties, and relationships within a domain, typically expressed in a language such as OWL.
In: Concept Collection, Semantic Web Standards
- OWL — Web Ontology Language - a W3C standard for authoring ontologies with formal, machine-processable semantics for classes, properties, and logical relationships.
In: Concept Collection, Semantic Web Standards
P
- Package — A physical package of a food product.
- Periodic Notes — Manage daily, weekly, and monthly notes.
- Person — A person used as a source in a PKM system.
- PKM Meals — A SwiftUI app that manages events, recipes, and meals in a PKM system.
- PKM Neo4j Service Project (also: pkm-neo4j-service) — Python (PyCharm) project with FastAPI services, scripts, commands, and agents that support the PKM system.
- PKM Python — Python apps and services supporting PKM system.
- PKM Python Agents — Python agents supporting the PKM system.
- PKM Python API — Python FastAPI routes providing an API for PKM services.
- PKM Python Commands — Python commands supporting the PKM system.
- PKM Python Scripts — Python scripts supporting the PKM system.
- PKM Python Services — Python services supporting the PKM system.
- PKM Studio — A SwiftUI app that manages a PKM knowledge system.
- PKM Swift — Swift apps and services supporting PKM system.
- PKM Swift Services — Swift Hummingbird services that support a PKM system.
- Product — A packaged food or grocery item.
- Project — A defined, bounded effort with a specific goal and completion criteria, undertaken over a limited timeframe.
In: Effort Collection, Note Types
- PTE Meal Plan — A weekly meal plan built in Plan to Eat (PTE); a recipe, meal-planning, and shopping list subscription service.
In: Meal Domain
- Publish — A core plugin that allows you to host your notes online as a website, wiki, or documentation.
- Python — A general-purpose, interpreted programming language.
In: Tech Stack
- Python Template — A Python (Jinja2) template determines the structure, layout, and configuration for various types of notes in the PKM system.
In: Note Types
Q
- Quarter — A three-month time period used for medium-level planning.
In: Quarter Collection
- Quarter Cluster — Everything the system produces about a single quarter — its plan, log, review, journal and health notes — taken as one whole rather than many notes of one kind.
In: Quarter Collection
- Quarter Collection (collection, 6 members) — Quarter, the Quarter Cluster and three of its five parts, listed flat. Two parts are absent and one member belongs to the month rather than the quarter, which is the copy this collection was made from showing through. The hierarchy under Quarter Cluster is authoritative.
- Quarter Health — The health-related summary for a quarter.
- Quarter Journal — Reflective writing about a quarter.
- Quarter Log — A record of what happened over a quarter.
In: Quarter Collection
- Quarter Plan — The plan of intended priorities for a quarter.
In: Quarter Collection
- Quarter Review — A structured retrospective evaluating a completed quarter.
In: Quarter Collection
- QuickAdd — Extension for Obsidian that includes additional tools (choices): templates, captures, macros, and multis.
- Quote — A quote by a specific source that you want to capture and reuse.
R
- RDF — Resource Description Framework - a W3C standard model for representing data as subject-predicate-object triples, forming the graph-based foundation for SKOS, OWL, and linked data.
In: Concept Collection, Semantic Web Standards
- Recipe — A set of ingredients, instructions, nutrition, and information to prepare, cook, and eat a meal.
In: Note Types, Recipe Collection
- Recipe Collection (collection, 7 members) — Recipe and its six parts listed flat: the ingredients, nutrition, timings, servings, source and images a recipe is assembled from. It enumerates by hand what the hierarchy already derives, and currently matches it exactly.
- Recipe Images — The photo or image assets associated with a recipe.
In: Meal Domain, Recipe Collection
- Recipe Servings — The number of servings or portions a recipe yields.
In: Meal Domain, Recipe Collection
- Recipe Source — The origin or provenance of a recipe, such as the website, cookbook, or person it was sourced from.
In: Meal Domain, Recipe Collection
- Recipe Time — The time-related metadata for a recipe, such as preparation time, cook time, and total time.
In: Meal Domain, Recipe Collection
- Restaurant — A dining establishment where meals are eaten or taken out.
In: Note Types
S
- Script — A short program or set of automated instructions, typically in Python or Swift, that performs a specific task.
In: Note Types, Tech Stack
- Script Event — Something that happened during script processing.
- Semantic Web Standards (collection, 11 members) — Standards and knowledge organization artifacts underlying this vocabulary: SKOS, RDF, and OWL alongside term, taxonomy, ontology, and knowledge graph.
- Service Event — Something that happened during service processing.
- Shortcut — An Apple Shortcuts app automation - a user-defined sequence of actions run manually, scheduled, or triggered via Siri or other events.
In: Note Types, Tech Stack
- Siri — Apple’s voice-activated virtual assistant, integrated into iOS, iPadOS, and macOS.
In: Tech Stack
- SKOS — Simple Knowledge Organization System - a W3C standard data model, expressed in RDF, for representing controlled vocabularies such as thesauri, taxonomies, and classification schemes.
In: Concept Collection, Semantic Web Standards
- Sleep Event — Recording metrics from overnight sleep.
- Snack — A small meal eaten between main meals.
In: Meal Domain
- Source — A source of information from others that is used as input for developing your own ideas and knowledge in a PKM system.
- Spark — A brief, informal capture of an idea, prompt, or stimulus intended for later development.
In: Note Types, Spark Collection
- Spark Collection (collection, 2 members) — Idea and Spark, the two concepts for something newly noticed and not yet developed. Two members, and no narrower concepts beneath either, so the grouping is not yet doing work.
- Standard — A documented specification, format, or set of rules established by a recognized body, intended for consistent, repeated use.
In: Semantic Web Standards
- Swift — A general-purpose, compiled programming language developed by Apple, used primarily for iOS/macOS app development.
In: Tech Stack
- Sync — A core plugin that synchronizes your files through the Obsidian Sync service.
T
- Taxonomy — A hierarchical classification scheme that organizes concepts into broader/narrower relationships.
In: Concept Collection, Semantic Web Standards
- Tech Stack (collection, 10 members) — The languages, frameworks, and tools used to build and run the PKM system outside Obsidian: Python, Swift, Neo4j, Cypher, and Apple Shortcuts.
- Template — A template determines the structure, layout, and configuration for various types of notes in the PKM system.
- Templater — Create and use dynamic templates with a templating language that inserts variables and functions into notes, along with JavaScript code.
- Term — A word or phrase used as the preferred or alternate label for a concept in a controlled vocabulary.
In: Concept Collection, Note Types, Semantic Web Standards
- Time — A concept element representing a temporal reference point or duration.
In: Time Collection
- Time Cluster — A cluster whose subject is a single time period, at any horizon from a day to a year.
In: Time Collection
- Time Collection (collection, 2 members) — Time and the Time Cluster, and nothing else. Two members against the fifty-five concepts under Time Cluster, so this is a decision half-made rather than a facet.
- Tool — A software capability used within the PKM system.
In: Tech Stack
- Tool Event — Something that happened during processing with a tool.
- Topic — A subject or theme that content can be about.
In: Knowledge Collection
- Topic Cluster — Notes and artifacts assembled around a single topic, rather than every note that happens to mention it.
- Topic Index — The index note that links all artifacts for a topic.
- Topic Journal — Free-form reflective writing about a topic.
- Topic Log — A chronological record of what actually happened related to a topic.
- Topic Plan — The plan of intended activities and priorities for a topic.
- Topic Review — A structured retrospective evaluating a topic.
U
- User Event — Something that happened and raised by a user.
V
- Vault — A folder with all the Obsidian notes for a specific purpose, such as Ideaverse, etc.
In: Ideaverse Collection, Note Types
- View — A note that offers a view perspective of related notes as a dashboard, dynamic queries, or embedded bases.
W
- W3C Standard — A standard or recommendation published by the World Wide Web Consortium (W3C).
In: Semantic Web Standards
- Week — A seven-day time period grouping consecutive days.
In: Week Collection
- Week Analysis — A note summarizing patterns, trends, or review findings across a week’s Day Clusters.
In: Week Collection
- Week Cluster — Everything the system produces about a single week — its index, plan, log, review, journal, analysis, health and meal-plan notes — taken as one whole rather than many notes of one kind.
- Week Collection (collection, 11 members) — The ten parts of a Week Cluster listed flat, together with Week itself. It enumerates by hand what the hierarchy already derives; where the two disagree the hierarchy under Week Cluster is authoritative.
- Week Diabetes — A weekly note or artifact aggregating diabetes-related tracking data for the week.
In: Week Collection
- Week Diabetes Analysis — A note summarizing patterns or trends in diabetes-related tracked data (e.g. glucose, insulin) across a week.
In: Week Collection
- Week Health — The health-related summary for a week.
In: Week Collection
- Week Index — A hub note for a given week that links to and organizes its constituent Day Cluster notes and other weekly artifacts.
In: Week Collection
- Week Journal — Reflective writing about a week.
In: Week Collection
- Week Log — A record of what happened over a week.
In: Week Collection
- Week Meal Plan — A note representing the planned meals for a given week, aggregating daily meal plan entries.
In: Meal Domain, Week Collection
- Week Plan — The plan of intended priorities and activities for a week.
In: Week Collection
- Week Review — A structured retrospective evaluating a completed week.
In: Week Collection
- Weight Event — A record of current weight.
- Widget — A home- or lock-screen glanceable view.
- Workspaces — A core plugin that enables you to create, save, and load workspace layouts.
Y
- Year — A calendar year grouping quarters and months.
In: Year Collection
- Year Cluster — Everything the system produces about a single year — its plan, log, review, journal and health notes — taken as one whole rather than many notes of one kind.
In: Year Collection
- Year Collection (collection, 7 members) — Year, the Year Cluster and all five of its parts, listed flat. It enumerates by hand what the hierarchy already derives; where the two disagree the hierarchy under Year Cluster is authoritative.
- Year Health — The health-related summary for a year.
In: Year Collection
- Year Journal — Reflective writing about a year.
In: Year Collection
- Year Log — A record of what happened over a year.
In: Year Collection
- Year Plan — The plan of intended priorities for a year.
In: Year Collection
- Year Review — A structured retrospective evaluating a completed year.
In: Year Collection
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