Research this topic
Explore the main themes, entities and connections around OPML. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Explore this topic
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
- Developed by
- UserLand
- Extended from
- XML
- Internet media type
- application/xml, text/xml, text/x-opml
- Type of format
- Outliner
- Uniform Type Identifier (UTI)
- org.opml.opml
- UTI conformation
- public.xml
Topics to explore
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.Browse the full topic structure. Each item opens a new analysis centered on that subject.
Overview
- XML
- Outlines Outline (list)
- UserLand Software
- Outliner
- Radio UserLand
- Web feeds
- Feed aggregators Feed aggregator
- RSS
- Mozilla Thunderbird
XML format
Criticism
Validation
Alternative specifications
Advanced semantic analysis
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
Map overview Semantic statistics
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.OPML
How this topic connects Entity context
Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.See the strongest relationship patterns around the current topic before diving into the raw triples.
OPML
Top relations
Important terminology Word statistics
Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
Important terminology
format xml outline feed specification userland outliner elements lists web list rfc developed application outlines document markup language attributes since
Entity relationships Subject–Predicate–Object triples
Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| OPML | Developed by | UserLand | 1.00 | infobox |
| OPML | Extended from | XML | 1.00 | infobox |
| OPML | Filename extension | .mw-parser-output .monospaced{font-family:monospace,monospace} .opml | 1.00 | infobox |
| OPML | Internet media type | application/xml, text/xml, text/x-opml | 1.00 | infobox |
| OPML | Type of format | Outliner | 1.00 | infobox |
| OPML | Uniform Type Identifier (UTI) | org.opml.opml | 1.00 | infobox |
| OPML | UTI conformation | public.xml | 1.00 | infobox |
| OPML | Website | dev.opml.org | 1.00 | infobox |
| OPML | related to Criticism | The RFC | 0.60 | section |
| OPML | related to Criticism | RFC | 0.60 | section |
| OPML | related to Criticism | In | 0.60 | section |
| OPML | related to Criticism | Due | 0.60 | section |
Related concept clusters Concept neighborhoods
Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.These clusters group vocabulary that occurs around closely connected concepts in the source material.
Connections between topic areas Semantic bridges
Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.