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Db4o: History & Products

db4o (database for objects) was an embeddable open-source object database for Java and .NET developers. It was developed, commercially licensed and supported by Actian. In October 2014, Actian declined to continue to actively pursue and promote the commercial db4o product offering for new customers.

Language: English [EN]
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Db4o topic overview

The analysis highlights History and Products as prominent areas in the source structure around Db4o.

Related topics
51
Source areas
5
Connected nodes
56
Extracted relationships
87
Concept neighborhoods
22
Bridge connections
56

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Disadvantages · 15 topics
Portability and cross-platform deployment · 15 topics
Overview · 11 topics
Features · 8 topics
History · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developer
Actian
License
GNU General Public License (GPL) db4o Opensource Compatibility License (dOCL) Proprietary license
Operating system
Cross-platform
Stable release
8.0
Type
Object database
Written in
C#, Java

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Features

Disadvantages

Portability and cross-platform deployment

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.

How Db4o connects Entity context

The extracted context around Db4o shows recurring relationship patterns in the source. For example, Db4o → Android, BlackBerry, CDC, CLDC, Depending, Java EE, Java ME, Java SE, Java's JDK, JavaFX, MIDP, Palm OS, Personal Profile, SavaJe, Silverlight, Symbian OS, Zaurus Another extracted example is Db4o → APIs, Developers, Development, GPL, It, Java, NET, One, Opensource Compatibility License, RDBMS, Replication System, The. Use these groups to spot repeated connection types before inspecting the individual relationships.

Db4o

Top relations

related to Portability and cross-platform deployment · 17
Db4o → Android, BlackBerry, CDC, CLDC, Depending, Java EE, Java ME, Java SE, Java's JDK, JavaFX, MIDP, Palm OS, Personal Profile, SavaJe, Silverlight, Symbian OS, Zaurus
related to overview · 12
Db4o → APIs, Developers, Development, GPL, It, Java, NET, One, Opensource Compatibility License, RDBMS, Replication System, The
related to Further reading · 10
Db4o → Apress, Henrik Hörning, IBM DeveloperWorks, ISBN, Java, Jim Paterson, Neward, Reidar Hörning, Stefan Edlich, The
related to Client-server mode · 7
Db4o → Client/server, Communication, Due, Generic Reflection, However, It, TCP/IP
related to LINQ · 5
Db4o → Compact Framework, Due, IDE Intellisense, LINQ, NET
related to Object Manager · 5
Db4o → Eclipse, From, MS Visual Studio, Object Management Enterprise, OME
related to Versions · 5
Db4o → Development, Production, Stable, SVN, This
related to Documentation and support · 4
Db4o → API, For, Information, Xtreme Connect
related to External links · 4
Db4o → Article, Drdobbs, Free, RETSCAN
related to Disadvantages · 3
Db4o → Disadvantages, Object Databases, The

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

java database object also version net used commercial linq queries actian development data allows features native support system documentation open-source

Db4o relationships Subject–Predicate–Object triples

TTTA extracted 87 structured relationships around Db4o. Examples in this analysis include Db4o → Developer → Actian and Db4o → License → GNU General Public License (GPL) db4o Opensource Compatibility License (dOCL) Proprietary license. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Db4oDeveloperActian1.00infobox
Db4oLicenseGNU General Public License (GPL) db4o Opensource Compatibility License (dOCL) Proprietary license1.00infobox
Db4oOperating systemCross-platform1.00infobox
Db4oStable release8.01.00infobox
Db4oTypeObject database1.00infobox
Db4oWritten inC#, Java1.00infobox
Db4orelated to Client-server modeClient/server0.60section
Db4orelated to Client-server modeIt0.60section
Db4orelated to Client-server modeTCP/IP0.60section
Db4orelated to Client-server modeCommunication0.60section
Db4orelated to Client-server modeDue0.60section
Db4orelated to Client-server modeGeneric Reflection0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Db4o bring nearby vocabulary together. In this analysis, examples include Java, Also and Object. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Db4o
    • Java
    • Also
    • Object
    • Net
    • Version
    • Software
    • Open-source
    • Public
    • Stable
    • Support
    • Available
    • Data
  • db4o
    • Java
    • Also
    • Object
    • Net
    • Version
    • Software
    • Open-source
    • Public
    • Stable
    • Support
    • Available
    • Data
  • java
    • Net
    • Written
    • Developers
    • System
    • Features
    • Data
    • Development
    • Also
    • Object
    • Open-source
    • Public
    • Stable
  • .net
    • Developers
    • Version
    • Available
    • Class
    • Data
    • Development
    • Also
    • Object
    • Build
    • Written
    • Open-source
    • Product
  • object-oriented database model
    • Class
    • Written
    • Public
    • Java
    • Object
    • Net
    • Relational
    • Software
    • Db4o
    • Developers
    • Queries
    • Native
  • object oriented programming
    • Data
    • Native
    • Relational
    • Used
    • Written
    • Java
    • Field
    • System
    • Class
    • Linq
    • Model
    • Object-oriented
  • data model
    • Class
    • Relational
    • Replication
    • Object
    • Used
    • Software
    • Using
    • Also
    • Java
    • Net
    • Written
    • Db4o
  • object/relational impedance mismatch
    • Data
    • Using
    • Native
    • Relational
    • Used
    • Replication
    • Written
    • Java
    • Field
    • System
    • Class
    • Linq

Connections between topic areas Semantic bridges

For Db4o, one of the stronger structural bridges in this analysis connects Db4o with Disadvantages. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Db4o — Disadvantages · splits 41 ⟂ 16
Db4o — Portability and cross-platform deployment · splits 41 ⟂ 16
Db4o — Overview · splits 45 ⟂ 12
Db4o — Features · splits 48 ⟂ 9
Db4o — History · splits 54 ⟂ 3

Map overview Semantic statistics

Db4o

Nodes57
Edges56
Triples87
Avg. degree1.96
Density0.035088
Components1

Source & methodology

TTTA analyzes the structure around Db4o to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Products, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Db4o · EN edition · Analysis: TopicsToTalkAbout

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