Metasafe Architecture

Metasafe - an erDBMS (i.e. a Database Management System based on the Entity-Relatinship Model.
explained using the definition of a DBMS as published by Wikipedia
Logical Architecture Logical architecture describes the construction of Metasafe in four layers of abstraction from the top M3 core layer down to the M0 instance level.
Functional Architecture describes the construction from a service point of view. It shows how applications can access the tools and core services of Metasafe.
Technical Architecture explains the single and multi-user-version and the operating environment.

Toolset

metaModeler is the tool to develop and document "information models". The metaModeler is a tool to manage information-models and submodels in a multi-user environment to create a viable dictionary of the information assets and a base for application acquisition or development.
metaEditor is a generic tool to browse, search, update the content of the database. The tool consitst of a set of Eclipse plugins.
metaEXL provides the means to import / export data from and to Excel. This is especially helpful to replace some Exel-based applicaitons or to provide an initial load of data
erSQL: the access language of metasafe is a powerful and still easy to use query language. The language describes how to navigate through the relationships of the repository (instead of JOINing tables).
BIRT-Interface opens the functionality of the Business Intelligence and Reporting Tool for broader use. The combination of BIRT and the erSQL-query opens a completely new possibilities for powerusers and developers.

API - the Application Programming Interface provides a direct access to the services of the Metasafe repository for Java applications or tools developers.