Contracts

Contracts and modifications awarded by the City of Chicago since 1993. This data is currently maintained in the City’s Financial Management and Purchasing System (FMPS), which is used throughout the City for contract management and payment. Legacy System Records: Purchase Order/Contract Numbers that begin with alpha characters identify records imported from legacy systems. Records with a null value in the Contract Type field were imported from legacy systems. "Comptroller-Other" Contract Type: Some records where the Contract Type is "COMPTROLLER-OTHER" are ordinance-based agreements and may have start dates earlier than 1993. Depends Upon Requirements Contracts: If the contract Award Amount is $0, the contract is not cancelled, and the contract is a blanket contract, then the contract award total Depends Upon Requirements. A Depends Upon Requirements contract is an indefinite quantities contract in which the City places orders as needed and the vendor is not guaranteed any particular contract award amount. Blanket vs. Standard Contracts: Only blanket contracts (contracts for repeated purchases) have FMPS end dates. Standard contracts (for example, construction contracts) terminate upon completion and acceptance of all deliverables. These dates are tracked outside of FMPS. Negative Modifications: Some contracts are modified to delete scope and money from a contract. These reductions are indicated by negative numbers in the Award Amount field of this dataset. Data Owner: Procurement Services. Time Period: 1993 to present. Frequency: Data is updated daily.芝加哥市自1993年起授予的各类合同及其变更记录。本数据集当前由芝加哥市财政管理与采购系统（Financial Management and Purchasing System, FMPS）维护，该系统为全市合同管理与款项支付业务提供全流程支撑。 遗留系统记录：以字母字符开头的采购订单/合同编号，即代表其为从遗留系统导入的记录；合同类型字段为空值的记录，同样属于遗留系统导入数据。 ‘COMPTROLLER-OTHER’合同类型：部分合同类型为‘COMPTROLLER-OTHER’的记录属于基于市政条例的协议，其起始日期可能早于1993年。 按需额度合同：若某合同的授予金额为0美元，且该合同未被取消，同时属于一揽子合同，则该合同的总授予额度为‘按需额度’。按需额度合同属于不确定数量合同，芝加哥市可根据实际需求下达采购订单，供应商不会被承诺固定的合同授予金额。 一揽子合同与标准合同的区别：仅一揽子合同（用于重复采购的合同）会在FMPS中记录结束日期；标准合同（如建筑工程合同）则在所有交付物完成并验收后即告终止，此类合同的终止日期不在FMPS中登记，而是由外部系统跟踪管理。 负面变更：部分合同会被变更以缩减服务范围与合同金额，此类金额缩减在本数据集的‘授予金额’字段中以负数形式体现。 数据归口管理部门：采购服务处 时间范围：1993年至今 更新频率：每日更新