Assay modules, preferably assay cartridges, are described as are reader apparatuses which may be used to control aspects of module operation. A dedicated load process is instantiated at a transaction broker for each of the multiple transaction data sources. The frame further includes two cylindrical holes provided to receive two fixing elements, the holes extending in the longitudinal plane of the frame and their respective axes being spaced from one another by a value E of between about 164 mm and 170 mm, more particularly equal to about 167 mm. The images having location coordinates within a predefined range of geographic coordinates is displayed to the user. The bar code is applied to the order form and both are transmitted to a vendor via mail, facsimile; upon receipt the vendor reads the bar code to enter the order information. The touch gesture recognition method recognizes touch gestures using the diagonal-line length of a bounding box created based on touch location information and variations in the diagonal-line length.