Single V promotional videos from a varying span of time, alternate versions of the videos, often featured on the Single V that the video originally came from, and the TV spots for the singles. Although Hello! Project singles are usually accompanied by a Single V, frequently when a single is released near the same time that a Single V Clips is released, the single will not have a regular Single V. Instead, the promotional video and alternate shots of the video will appear on the Single V Clips. But no one knows what the "V" or "M" actually means. Single V A
Single source of truth Single source of truth In information systems design and theory, single source of truth (SSOT) is the practice of structuring information models and associated data schema such that every data element is stored exactly once. Any possible linkages to this data element (possibly in other areas of the relational schema or even in distant federated databases) are by reference only. Because all other locations of the data just refer back to the primary "source of truth" location, updates to the data element in the primary location propagate to the entire system without the possibility of a duplicate value somewhere being