[
    {
        "name":"computer",
        "columns":
            {
                "id":"integer",
                "name":"varchar(255)|comment",
                "description":"varchar(1000)",
                "os":"varchar(255)"
            }
    },
    {
        "name":"software",
        "columns":
            {
                "id":"integer",
                "name":"varchar(255)|comment",
                "description":"varchar(1000)",
                "licenseend":"date",
                "support":"varchar(255)",
                "company":"varchar(255)"
            }
    },
    {
        "name":"software_computer",
        "columns":
            {
                "id":"integer",
                "computer_id":"integer",
                "software_id":"integer"
            }
    },
    {
        "name":"person",
        "columns":
            {
                "id":"integer",
                "name":"varchar(255)",
                "firstname":"varchar(255)",
                "email":"varchar(255)",
                "mobile":"varchar(255)"
            }        
    },
    {
        "name":"entity",
        "columns":
            {
                "id":"integer",
                "name":"varchar(255)",
                "type":"varchar(255)",
                "startdate":"date",
                "enddate":"date"
            }        
    },
    {
        "name":"timetracking",
        "columns":
            {
                "id":"integer",
                "day":"date",
                "morning_entity_id":"integer",
                "afternoon_entity_id":"integer",
                "person_id":"integer",
                "comment":"varchar(255)"
            }        
    }
]