diff --git a/legacyworlds-server-data/db-structure/parts/030-data/080-techs.sql b/legacyworlds-server-data/db-structure/parts/030-data/080-techs.sql
index c539ac2..a19931a 100644
--- a/legacyworlds-server-data/db-structure/parts/030-data/080-techs.sql
+++ b/legacyworlds-server-data/db-structure/parts/030-data/080-techs.sql
@@ -3,10 +3,97 @@
 --
 -- Technology definitions
 --
--- Copyright(C) 2004-2010, DeepClone Development
+-- Copyright(C) 2004-2012, DeepClone Development
 -- --------------------------------------------------------
 
 
+/*
+ * Technology definitions
+ * -----------------------
+ * 
+ * This table contains all defined technologies. It includes references to
+ * the various I18N strings used to describe the technology, as well as its
+ * cost in research points.
+ * 
+ * FIXME: for now it also includes the monetary cost, but that will go away
+ *		when the full resource system is completed.
+ */
+CREATE TABLE defs.technologies(
+	/* Name of the technology (I18N string) */
+	technology_name_id			INT NOT NULL PRIMARY KEY ,
+
+	/* Category of the technology (I18N string) */
+	technology_category_id		INT NOT NULL ,
+
+	/* Text to display when the technology is discovered (I18N string) */
+	technology_discovery_id		INT NOT NULL ,
+	
+	/* A more "factual" description of the technology (I18N string) */
+	technology_description_id	INT NOT NULL ,
+	
+	/* Monetary price of the technology - FIXME: will be removed later */
+	technology_price			INT NOT NULL
+									CHECK( technology_price > 0 ) ,
+
+	/* Cost of the technology in terms of research points */
+	technology_points			INT NOT NULL
+									CHECK( technology_points > 0 )
+);
+
+CREATE INDEX idx_techs_category
+	ON defs.technologies( technology_category_id );
+CREATE UNIQUE INDEX idx_techs_discovery
+	ON defs.technologies( technology_discovery_id );
+CREATE UNIQUE INDEX idx_techs_description
+	ON defs.technologies( technology_description_id );
+
+ALTER TABLE defs.technologies
+	ADD CONSTRAINT fk_techs_name
+		FOREIGN KEY ( technology_name_id ) REFERENCES defs.strings ,
+	ADD CONSTRAINT fk_techs_category
+		FOREIGN KEY ( technology_category_id ) REFERENCES defs.strings ,
+	ADD CONSTRAINT fk_techs_discovery
+		FOREIGN KEY ( technology_discovery_id ) REFERENCES defs.strings ,
+	ADD CONSTRAINT fk_techs_description
+		FOREIGN KEY ( technology_description_id ) REFERENCES defs.strings;
+
+
+
+/*
+ * Technology dependencies
+ * ------------------------
+ *
+ * This table list dependencies between technologies. It stores pairs of
+ * dependent / dependency references.
+ */
+CREATE TABLE defs.technology_dependencies(
+	/* Identifier of the dependency itself. Makes integrity checks easier */
+	techdep_id					SERIAL NOT NULL PRIMARY KEY ,
+	
+	/* Identifier of the dependent technology */
+	technology_name_id			INT NOT NULL ,
+
+	/* Identifier of the technology being depended on */
+	technology_name_id_depends	INT NOT NULL
+);
+
+CREATE UNIQUE INDEX idx_techdeps_techs
+	ON defs.technology_dependencies( technology_name_id , technology_name_id_depends );
+CREATE INDEX idx_techdeps_dependency
+	ON defs.technology_dependencies( technology_name_id_depends );
+
+ALTER TABLE defs.technology_dependencies
+	ADD CONSTRAINT fk_techdeps_dependent
+		FOREIGN KEY ( technology_name_id ) REFERENCES defs.technologies ,
+	ADD CONSTRAINT fk_techdeps_dependency
+		FOREIGN KEY ( technology_name_id_depends ) REFERENCES defs.technologies;
+
+
+
+/*
+ * Old B6M1 research system below.
+ */
+
 --
 -- Technology lines
 --