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| Define ATM in context of execution period | Apply pre-committed time per facility | Apply maintenance time per facility | Apply carry-over per facility | Inspect ATM | Manual modification of ATM | Source Conflict identification in ODs | Inspection of ODs | Modification of ODs | Assign Preliminary SP | Generate reports: Facility Report, Proposal Summary | Inspect Facility Report, Proposal Summary | Inspect ADs | Approve ADs | Generate Directors' Reports |
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To determine what time is available for the new proposals, I first have to build an Available Time Model (ATM). The ATM needs to know about pre-committed time from previous approved proposals (e.g., multi-semester, monitoring), sponsored time, maintenance periods, tests, and then also carry-over from the previous semester. I want to be able to import files to specify this information, inspect the imported information, and modify it on the fly as I need. The ATM also depends on the weather and the hardware sometimes (e.g., VLA configuration).
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| As a scheduler I would like to define an available time model (ATM) for my facility so I know how much time is available for new Allocation Requests (ARs) to fill. |
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When the ATM is first defined for my facility I want it to use the execution period set in the Solicitation. | | As a scheduler I want to be able to modify the execution period the ATM uses for my facility so I can support my facility specific scheduling requirements. | | As a scheduler I want to be able to make late modifications to the execution period my facility references so I do not have to delete all of my work. | | As a VLA scheduler I want the configuration defined in the Solicitation to each have an execution period in the VLA ATM. | As a VLA scheduler I want to modify the execution periods per configuration so the available time per configuration is accounted for correctly in the VLA ATM. | | As a scheduler I want algorithms to build the ATM for my facility using facility specific constraints so I can add projects and precommitted time to it. |
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| As a scheduler I want to define pre-committed time for my facility's ATM so ADs will not be scheduled in those blocks of time. |
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| As a scheduler I want to import projects that constitute pre-committed time so the time is correctly reserved for these projects. | As a scheduler I want to manually add pre-committed time to the ATM so it is accounted for. | | As a s scheduler I want to easily discern the different types of blocked off time in the ATM so I know how the time is being accounted for.As a scheduler I want to be able to edit or delete existing pre-commited time periods. |
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| As a scheduler I want to define maintenance periods for the facility so ADs will not be scheduled in those blocks of time. |
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| As a scheduler I want to be able to upload a file with LST/GST, duration, date, and name/description that defines the maintenance periods. | As a scheduler I want to be able to manually add maintenance periods. As a scheduler I want to be able to edit or delete existing maintenance periods. |
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| As a scheduler I want to define time in the ATM for carry-over projects so ADs will not be scheduled in those blocks of time. |
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| As a scheduler I want to import the details of carry-over projects so the time is accurately accounted for in the ATM. | | As a scheduler I want to manually add the details of a carry-over time. |
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To inspect the ATM, it is most useful to use a pressure plot, which is essentially a histogram of number of the hours requested by the OSDs per time. This tells me how many hours in a certain time bin is being requested or is available. The amount available is many inputs, including weather, frequency, and pre-committed time. The amount requested depends on the OSDs of the new proposals. I need to balance the new request against what is available. To do so, I need to really understand the details of both the available time and the requested time. It would also be nice to have a calendar-like view of the ATM, as some of the pre committed time is fixed date.
Small adjustments in the ATM or and OSD can have big consequences for the available time. As a scheduler, I explore how these changes can make an efficient schedule. As there are a lot of working parts though (many proposals, many inputs to the ATM), I like to return to previous states to assess the impact of a small adjustment. I would like to be able to save a version the schedule so I can return to it later if needed. I would like a detailed version history so I can inspect many different versions if I need to.
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| As a scheduler I want to inspect the ATM so I can check it is correct. |
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| As a scheduler I would like to generate a Pressure Plot to represent the ATM so I have a holistic view of the available Time. | | As a scheduler I want to inspect the ATM in detail so I understand where it may be under or over subscribed. | | As a scheduler I want a view that is like a calendar so I can review specific days for fixed date observations of pre-committed time. |
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| As a scheduler I want to modify the ATM manually at any point so it can be accurate. |
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| As a scheduler I want to be able to edit or delete existing pre-committed time periods. | | As a scheduler I want to be able to edit or delete existing carry-over time. | | As a scheduler I want to be able to edit or delete existing maintenance periods. | | As a scheduler I want the visual tools I use to inspect the ATM to update when I change the ATM so they will be correct. | | As a scheduler I want version control on my ATM so I can easily access different versions of the ATM that I am building. |
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Now that I have the ATM, I can start to assess how the new requests will fit into it. I will need to modify the requests but I want to preserve the original request too. I likely will need to do detailed modifications, like to the sources, resources, or requested time, but sometimes I only want to do broad changes, such as total time. Sometimes these changes will have profound impacts on the intent of the request so I want to make sure I can let the PI and the TAC know about these proposed changes. My main intent is to determine preliminary scheduling priorities and to make sure the information needed for the TAC is accurate.
