diff --git a/base_model/ddl.sql b/base_model/ddl.sql
new file mode 100644
index 0000000..97b35e9
--- /dev/null
+++ b/base_model/ddl.sql
@@ -0,0 +1,67 @@
+CREATE SCHEMA IF NOT EXISTS BASIC;
+
+CREATE TABLE BASIC.ATTRIBUTE_GROUP (
+	ID SERIAL PRIMARY KEY,
+	GROUP_TYPE VARCHAR(64) NOT NULL DEFAULT '',
+	GROUP_NAME VARCHAR(64) NOT NULL DEFAULT '',
+	IS_REQUIRED SMALLINT NOT NULL DEFAULT -1,
+
+    UNIQUE(GROUP_TYPE)
+);
+
+CREATE TABLE BASIC.DATA_TYPE (
+	ID SERIAL PRIMARY KEY,
+	DATA_TYPE VARCHAR(64) NOT NULL DEFAULT '',
+	DATABASE_TYPE VARCHAR(32) NOT NULL DEFAULT '',
+
+    UNIQUE(DATA_TYPE)
+);
+
+CREATE TABLE BASIC.ATTRIBUTE (
+	ID SERIAL PRIMARY KEY,
+	ATTRIBUTE VARCHAR(128) NOT NULL DEFAULT '',
+	DATA_TYPE_ID INTEGER NOT NULL DEFAULT -1,
+	LENGTH_PRECISION INTEGER NOT NULL DEFAULT -1,
+	SCALE INTEGER NOT NULL DEFAULT -1,
+	DEFAULT_VALUE VARCHAR(64) NOT NULL DEFAULT '',
+	VALUE_RANGE VARCHAR(128) NOT NULL DEFAULT '[,]',
+	ATTRIBUTE_GROUP_ID INTEGER NOT NULL DEFAULT -1,
+	IS_NOT_NULL INTEGER NOT NULL DEFAULT -1,
+	IS_INDEX INTEGER NOT NULL DEFAULT -1,
+
+    UNIQUE(ATTRIBUTE),
+
+	FOREIGN KEY (DATA_TYPE_ID) REFERENCES BASIC.DATA_TYPE (ID),
+	FOREIGN KEY (ATTRIBUTE_GROUP_ID) REFERENCES BASIC.ATTRIBUTE_GROUP (ID)
+);
+
+CREATE TABLE BASIC.ATTRIBUTE_TEMPLATE (
+	ID SERIAL PRIMARY KEY,
+	TEMPLATE_NAME VARCHAR(64) NOT NULL DEFAULT '',
+	DATA_TYPE_ID INTEGER NOT NULL DEFAULT -1,
+	LENGTH_PRECISION VARCHAR(16) NOT NULL DEFAULT '',
+	SCALE VARCHAR(16) NOT NULL DEFAULT '',
+	DEFAULT_VALUE VARCHAR(64) NOT NULL DEFAULT '',
+	VALUE_RANGE VARCHAR(128) NOT NULL DEFAULT '',
+	ATTRIBUTE_GROUP_ID INTEGER NOT NULL DEFAULT -1,
+	IS_NOT_NULL INTEGER NOT NULL DEFAULT -1,
+	IS_INDEX INTEGER NOT NULL DEFAULT -1,
+
+	FOREIGN KEY (DATA_TYPE_ID) REFERENCES BASIC.DATA_TYPE (ID),
+	FOREIGN KEY (ATTRIBUTE_GROUP_ID) REFERENCES BASIC.ATTRIBUTE_GROUP (ID)
+);
+
+CREATE TABLE BASIC.MODEL_ATTRIBUTE (
+	ID SERIAL PRIMARY KEY,
+	MODEL_TYPE VARCHAR(64) NOT NULL DEFAULT '',
+	ATTRIBUTE_ID INTEGER NOT NULL DEFAULT -1,
+
+	FOREIGN KEY (ATTRIBUTE_ID) REFERENCES BASIC.ATTRIBUTE (ID)
+);
+
+CREATE TABLE BASIC.MODEL_CONNECTIVITY (
+	ID SERIAL PRIMARY KEY,
+	FROM_MODEL VARCHAR (64) NOT NULL DEFAULT '',
+	TO_MODEL VARCHAR(64) NOT NULL DEFAULT '',
+	CONNECTIVITY INTEGER NOT NULL DEFAULT -1
+);
diff --git a/base_model/dml.sql b/base_model/dml.sql
new file mode 100644
index 0000000..546bb05
--- /dev/null
+++ b/base_model/dml.sql
@@ -0,0 +1,37 @@
+INSERT INTO
+	BASIC.ATTRIBUTE_GROUP (GROUP_TYPE, GROUP_NAME, IS_REQUIRED)
+VALUES
+	('base', '基础信息', 1),
+	('base_extend', '基础信息扩展', 0),
+	('rated', '额定参数', 0),
+	('setup','设定参数',0),
+	('model','模型参数',0),
+	('stable','稳定参数',0),
+	('bay','间隔信息',1),
+	('craft','工艺与负荷',0),
+	('integrity','设备完整性',0),
+	('behavior','行为信息',0);
+
+
+INSERT INTO
+	BASIC.DATA_TYPE (DATA_TYPE, DATABASE_TYPE)
+VALUES
+	('SMALLINT','postgres'),
+	('INTEGER','postgres'),
+	('BIGINT','postgres'),
+	('REAL','postgres'),
+	('DOUBLE PRECISION','postgres'),
+	('NUMERIC','postgres'),
+	('DECIMAL','postgres'),
+	('SERIAL','postgres'),
+	('BIGSERIAL','postgres'),
+	('CHAR','postgres'),
+	('VARCHAR','postgres'),
+	('TEXT','postgres'),
+	('BYTEA','postgres'),
+	('DATE','postgres'),
+	('TIME','postgres'),
+	('TIMESTAMP','postgres'),
+	('UUID','postgres'),
+	('JSON','postrges'),
+	('JSONB','postgres');
\ No newline at end of file