Page 763 - Cloud computing: From paradigm to operation

Video processing and storage 4

– USR-004: A VSCS system is required to support user's data uploading from a client device, including
video files, pictures and video metadata.
– USR-005: A VSCS system is required to support the user's view and downloading of stored data via
a client device, including video files, pictures and video metadata.
– USR-006: A VSCS system is recommended to support the video on demand and picture presentation
for end users.
– USR-007: A VSCS system is recommended to support information retrieval for end users.
– USR-008: A VSCS system is recommended to support flexible storage space application for end users.
– USR-009: A VSCS system is required to support the view of a user’s storage space status, including
the storage space occupancy rate, the remaining storage space.

8.1.2 Cloud storage service provider requirements
– USR-010: A VSCS system is required to support the provider's login and logout from the system
conveniently. The provider’s name and password are required when logging into the system.
– USR-011: A VSCS system is required to support the provider's view of the cloud storage system
operating status from the beginning to then-present time, including the system storage space
occupancy rate, the system’s remaining storage space, the storage space occupancy rate of
individual users, the remaining storage space of individual users, etc.
– USR-012: A VSCS system is required to support flexible storage space assignment for individual
users.

8.2 Service requirements
8.2.1 Video storage service requirements

– SER-001: A VSCS system is required to support directly writing video streams, from multiple PUs,
through the network.
– SER-002: A VSCS system is required to support video file uploading from multiple local video storage
devices through the network, including NVRs, mobile video capturing devices, etc.
– SER-003: A VSCS system is required to support video file deletion.
– SER-004: A VSCS system is required to support video file browsing and searching; the searching
conditions can be the source of video files, the capture time of video files, etc.
– SER-005: A VSCS system is required to support video file downloading through the network.
– SER-006: A VSCS system is required to support automatic video file overwriting when a user's
storage space is full; the overwriting principle is that the oldest data is replaced first.
– SER-007: A VSCS system is recommended to support video playback for end users according to the
source of the video file and the capture time of the video file. Video playback operations include
fast forward, slow forward, pause, and stop.
8.2.2 Picture storage service requirements

– SER-008: A VSCS system is required to support direct writing of pictures, from multiple PUs, through
the network.
– SER-009: A VSCS system is required to support picture uploading from multiple local video storage
devices through the network, including PCs, mobile picture capturing devices, etc.
– SER-010: A VSCS system is required to support picture deletion.
– SER-011: A VSCS system is required to support picture browsing and searching; the searching
conditions can be the source of the pictures, the capture time of the pictures, etc.
– SER-012: A VSCS system is required to support picture downloading through the network.

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