+CREATE TABLE process_descriptions (
+ process_id INTEGER NOT NULL,
+ timestamp TEXT NOT NULL,
+ description TEXT NOT NULL,
+ PRIMARY KEY (process_id, timestamp),
+ FOREIGN KEY (process_id) REFERENCES processes(id)
+);
+CREATE TABLE process_efforts (
+ process_id INTEGER NOT NULL,
+ timestamp TEXT NOT NULL,
+ effort REAL NOT NULL,
+ PRIMARY KEY (process_id, timestamp),
+ FOREIGN KEY (process_id) REFERENCES processes(id)
+);
+CREATE TABLE process_steps (
+ step_id INTEGER PRIMARY KEY,
+ owner_id INTEGER NOT NULL,
+ step_process_id INTEGER NOT NULL,
+ parent_step_id INTEGER,
+ FOREIGN KEY (owner_id) REFERENCES processes(id),
+ FOREIGN KEY (step_process_id) REFERENCES processes(id),
+ FOREIGN KEY (parent_step_id) REFERENCES process_steps(step_id)
+);
+CREATE TABLE process_titles (
+ process_id INTEGER NOT NULL,
+ timestamp TEXT NOT NULL,
+ title TEXT NOT NULL,
+ PRIMARY KEY (process_id, timestamp),
+ FOREIGN KEY (process_id) REFERENCES processes(id)
+);
+CREATE TABLE processes (
+ id INTEGER PRIMARY KEY
+);