Source material:

UI Design:
https://www.figma.com/file/E5zIAPsI2fagDc8btWGU06Ol/Challenge-Evaluation-Queue

Use case/desired behavior:
https://docs.google.com/document/d/19M9og2JW7CaG7YLNi8cCRhFuFwF-y6-nx4CJDAwr6qw/edit#heading=h.y0949lyt5na0

Motivations:

Existing Evaluations have a very inflexible way to define rounds:

{
	"name":"SubmissionQuota",
	"description":"Maximum submissions per team/participant per submission round.  If round information is omitted, then this indicates the overall submission limit per team/participant.",
	"properties":{
		"firstRoundStart": {
			"type": "string",
			"format": "date-time",
			"description": "The date/time at which the first round begins."
		},
		"roundDurationMillis":{
			"type": "integer",
			"description":"The duration of each round."
		},
		"numberOfRounds":{
			"type": "integer",
			"description":"The number of rounds, or null if there is no end."
		},
		"submissionLimit": {
			"type": "integer",
			"description":"the maximum number of submissions per team/participant per round."
		}
	}
}

The existing way to define Round limits assume that all rounds will last for the same duration and that later rounds will begin immediately as soon as the previous round ends. Users are also forced to perform unix timestamp calculations in order to set the round end datetime. There was also no fine grained submission limit control over Submission limits per user or participating team.

Proposed Changes

The goal is to provide users with more fine grained control over each Round in an Evaluation. This means:

API Schema

Evaluation
Add timeZone, rounds. Deprecate quota

timeZone will use long names (e.g. “US/Pacific”) instead of 3-letter names (e.g. PDT, PST) to account for Daylight savings

{
	"description": "An Evaluation is the core object of the Evaluation API, used to support collaborative data analysis challenges in Synapse.",
	"name": "Evaluation",
	"properties": {
	
		"....currently existing fields...":{}


		"quota": {
			"type":"object",
			"description":"DEPRECATED. Maximum submissions per team/participant per submission round",
			"$ref":"org.sagebionetworks.evaluation.model.SubmissionQuota"
		},

		"timeZone": {
			"type": "string",
			"description": "The time zone to be used for all round configurations."
		},

		"rounds": {
			"type": "array",
			"items": {
				"$ref": "org.sagebionetworks.evaluation.model.SubmissionRound"
			}
		}
	}
}

SubmissionRound (EvaluationRound?)

Defines roundStart and roundEnd dates.

Question: should roundStart and roundEnd be purely integers? or allow ISO timestamps? Other fields in Evaluation(e.g. createdOn ) use “date-time” as type so we would maintain consistency, but it makes a rather odd paring to have timeZone='US/Pacific' and roundStart='2020-08-11T16:45:10−08:00'

id can used for updates if we store rounds in a separate table

submissionLimit is used to set submission limits

{
   "name":"SubmissionRound",
   "description":"Defines the duration of a round and sets limits for maximum submissions per round",
   "properties":{
      "id": {
         "type": "string",
         "description": "The id of the SubmissionRound"
      },
      "roundStart": {
         "type": "string",
         "format": "date-time",
         "description": "The date/time at which the first round begins.",
         "required": true
      },
      "roundEnd":{
         "type": "string",
         "format": "date-time",
         "description":"The date/time at which the round ends.",
         "required": true
      },
      "submissionLimit": {
         "type": {
            "$ref": "org.sagebionetworks.evaluation.model.SubmissionRoundLimit"
         },
         "description": "Optional. Sets limits for maximum submissions in this round."
      }
   }
}

SubmissionRoundLimit

Limits for day, week, month, and total

monthlySubmissionLimit is defined in a separate object

{
   "name":"SubmissionRoundLimit",
   "description": "Sets limits for maximum submissions in a SubmissionRound",
   "properties":{
      "totalSubmissionLimit": {
         "type": "integer",
         "description": "The maximum total number of submissions per team/participant for the entirety of the round."
      },
      "dailySubmissionLimit": {
         "type": "integer",
         "description": "The maximum total number of submissions per team/participant for each day of the round."
      },
      "weeklySubmissionLimit": {
         "type": "integer",
         "description": "The maximum total number of submissions per team/participant for every 7 days of the round."
      },
      "monthlySubmissionLimit": {
         "type": {
            "$ref": "org.sagebionetworks.evaluation.model.SubmissionRoundMonthlyLimit"
         },
         "description": "The maximum total number of submissions per team/participant per month. Unlike other limits, this can be configured to reset on the n-th day of every month.",

      }
   }
}

SubmissionRoundMonthlyLimit

{
   "properties": {
      "dayOfMonth": {
         "type": "integer",
         "description": "Day of the month on which this date this limit is reset."
      },
      "limit": {
         "type": "integer",
         "description": "The maximum total number of submissions per team/participant per month."
      }
   }
}

Example Evaluation

id will be back-end generated after it has been created

{
   "....currently existing fields...":{},
   
   
   "timeZone":"US/Pacific",
   
   "rounds":[
      {
         "id":"1",
         "roundStart":1231412213213123123,
         "roundEnd":"2020-08-11T16:45:10−08:00",
         "submissionLimit":{
            "totalSubmissionLimit":20,
            "dailySubmissionLimit":2,
            "weeklySubmissionLimit":8,
            "monthlySubmissionLimit":{
               "dayOfMonth":28,
               "limit":10
            }
         }
      },
      
      
      {
         "id":"2",
         "roundStart":1231412213213123123,
         "roundEnd":"2020-08-11T16:45:10−08:00",
         "submissionLimit":{
            "totalSubmissionLimit":40,
            "dailySubmissionLimit":8,
            "weeklySubmissionLimit":12,
            "monthlySubmissionLimit":{
               "dayOfMonth":31,
               "limit":20
            }
         }
      }
      
      
   ]
}

EvaluationMaintenance

disallows all submissions
only 1 allowed per queue

{
   "properties": {
      "start": {
         "type": "string",
         "format": "date-time",
         "description": "The date/time at which the maintenance begins.",
         "required": true
      },
      "end":{
         "type": "string",
         "format": "date-time",
         "description":"The date/time at which the maintenance ends.",
         "required": true
      },
   }
}

API Endpoints

Endpoint

Request body

Return Body

Description

GET /evaluation/{evalId}

None

Evaluation

EXISTING endpoint to get evaluation

POST /evaluation

Evaluation

Evaluation

EXISTING endpoint to create an evaluation

PUT /evaluation/{evalId}

Evaluation

Evaluation

EXISTING endpoint to update evaluation

POST /evaluation/{evalId}/maintainance

EvaluationMaintenance

None or EvaluationMaintenance

Schedule a maintainance. Additional calls will override the existing maintenance window

DELETE /evaluation/{evalId}/maintainance

None

None

Delete the existing maintenance window, if any

GET /evaluation/{evalId}/maintainance

None

EvaluationMaintenance

Get info about the maintenance window. (used for UI display)

API/Database Transition

A SubmissionQuota can easily be mapped into into a list of SubmissionRounds using math, but the reverse is not true.

For the time being, I’m considering making the old deprecated quota field remain stored in the database, but enforce a rule such that user must choose between quota and rounds when configuring a Evaluation. This allows time for clients to implement support for the new rounds field.
Once we fully decide to remove SubmissionQuota, we can perform the conversion and store quotas asSubmissionRound.

Database Tables

2 Options:

evaluationId(BIGINT)(Foreign Key to Evaluations Table)

ID(BIGINT)

roundStart(TIMESTAMP)

roundEnd(TIMESTAMP)

Limits(JSON)

123

1

14312

12421

 {
         "id":"2",
         "roundStart":1231412213213123123,
         "roundEnd":"2020-08-11T16:45:10−08:00",
         "submissionLimit":{
            "totalSubmissionLimit":40,
            "dailySubmissionLimit":8,
            "weeklySubmissionLimit":12,
            "monthlySubmissionLimit":{
               "dayOfMonth":31,
               "limit":20
            }
         }
      }

123

2

123432

12351234

456

1

12343214

1234234

789

1

123421

1234234

Evaluation table

Add EVALUATION_ROUND, which is the round number during which it was submitted. This will be replicated into Submission Views.

Existing table:

ID BIGINT NOT NULL,
NAME varchar(256) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci,
EVALUATION_ID BIGINT NOT NULL,
USER_ID BIGINT NOT NULL,
SUBMITTER_ALIAS varchar(256) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci,
ENTITY_ID BIGINT NOT NULL,
ENTITY_BUNDLE mediumblob,
ENTITY_VERSION BIGINT NOT NULL,
CREATED_ON BIGINT NOT NULL,
TEAM_ID BIGINT,
DOCKER_REPO_NAME varchar(400) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci,
DOCKER_DIGEST varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci,