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Short, simple description of a feature told from the perspective of the person who desires the new capability, usually a user or customer of the system.
| # | Title | User Story | User Persona (how often) | Definition | Label | Importance | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Functionality Status of CCE | As (multiple users), I want to see the percentage of time the CCE in my facility/district/province/country is working so that I can better understand potency implications for the vaccines that are stored in them. | Percentage of cold chain equipment (CCE) operable for vaccine storage of the overall number of commissioned CCE devices in a particular area at a point in time or over a particular time period. CCE is defined as all refrigerators, fixed passive storage devices, and walk-in cold rooms and freezers designated for storing vaccines. | DISC | Must Have |
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| 2 | Temperature Alarms | As a______ I want to see | Number of times the temperature inside cold chain equipment (CCE) exceeds or drops below a reference range. The indicator is applicable where vaccines are stored and during transportation. CCE is defined as all refrigerators, freezers, fixed passive storage devices, transport vehicles, and walk-in cold rooms and freezers designated for storing vaccines. | DISC | Must Have | Used as a proxy for measuring vaccine potency and safety. Exposure to temperatures outside this range indicates a risk of heat or freeze damage to sensitive vaccines. |
Calculations, Data Needed, Data Sources
| KPI | Calculations | Data Needed | Data Sources |
|---|---|---|---|
| Functionality Status | % CCE functioning = (# functioning CCE devices) / (total # CCE devices designated for use) x 100% Both the numerator and the denominator should be collected from the same geographic area, and decommissioned equipmentshould not be counted in either the numerator or denominator. | Number of CCE devices designated for storing vaccines (including refrigerators, freezers, passive storage devices, walk-in cold rooms and walk-in freezers) in a particular geographical area. Functional status of each CCE: Functioning/Awaiting Repair/Unserviceable. Primary reason for not functioning or not in use: Needs Spare Parts/ No Finance/ No Fuel/ Surplus/ Dead/ Not Applicable. | Cold chain equipment inventories lists by location. On-site assessment of equipment functioning. Maintenance worksheet. CCE distribution plan. |
| Temperature Alarms | Temperature alarm rate = number of high and low temperature alarms per reporting period | The number of excursions or alarms outside of the designated temperature ranges is needed. This can be determined in two ways: (a) simplistic calculation of alarms by checking the temp log maintained by staff with records twice a day OR (2) remote temperature monitoring devices that continously monitor CCE and send alarms for temperature excursions and have automated reporting built in. Alarm thresholds are set by WHO: • An excursion is defined as any event during which the temperature inside the CCE goes below 2° C or above 8° C. • A high temperature alarm is defined as any event during which the temperature goes above 8° C for 10 continuous hours. • A low temperature alarm is defined as any event during which the temperature goes below -0.5° C for 1 continuous hour. | Continuous temperature recording devices, including 30-day temperature recorders [RTMs]. High/low temperature alarms (built into CCE or temperature monitoring devices). Manual recording of high/low temp alarms via a paper log maintained twice a day. Proof of Delivery (POD) for measuring temperature during transit if a temperature recording device is included. |
Diagrams
Include any business process mapping, mockups, diagrams or visual designs relating to these requirements. Describes the tasks and the personas who perform those activities. The diagram provides the context for the user stories and serves as a focal point for achieving clarity and agreement among stakeholders. Looks like a standard flow chart.
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- List the features discussed which are out of scope or might be revisited in a later release.
- List the features discussed which are out of scope or might be revisited in a later release.