Some embodiments include determination and storage of a plurality of relational database tables based on class model representing tag-based data and non-tag-based data and on a plurality of objects instantiated based on the class model. The FBAR filter comprises a first FBAR with a first resonant frequency and a second FBAR with a second resonant frequency, formed on a same substrate. The supporting cross member preferably defines holes through which the tines pass, and the distal ends of the tines are preferably free to move, being only restricted in motion by the supporting cross member. Before closing, the planning system receives estimated date related to each task.