數據實體 的英文怎麼說
中文拼音 [shǔjùshítǐ]
數據實體
英文
data entity-
Detailed description of the data items of each data entity is provided, and the primaryalternateforeign keys are also identified and documented
本文件亦會詳盡描述每個數據實體的數據項目，並認定及記錄其主關鍵碼備用鍵碼外鍵碼。There is at least one create event for each entity
每個數據實體最少要有一項建立的事件。Every entity has a unique name, which is a singular noun
每個數據實體須有獨特的名稱，名稱必須是單數名詞。To give a value to a data object at the beginning of its lifetime
在某一數據實體的生命期開始時，給它一個值。Specific character data entity
特定字元數據實體A short description of the data items of each data entity is also provided
本文件亦會簡單描述每個數據實體的數據項目。Character data entity
字元數據實體All data items of an entity are defined in the entity description part ii
數據實體的所有數據項目是在數據實體描述的第ii部分界定的。Entity descriptions define the volumetric, data items and keys of each entity
數據實體描述以界定每個數據實體的容積、數據項目及關鍵碼Note that the xml schema collection is a metadata entity like a table in the database
請注意， xml架構集合是一個類似於數據庫表的元數據實體。Stand - alone entities are examined carefully to make sure that they are really required
獨立存在的數據實體須經仔細審查，以確定它們實在是必需的。Entity access matrix documents the effects of each event on the data entities in logical data model
實體接達矩陣記錄每項事件對邏輯數據模型內數據實體所產生的影響。Current logical data model provides a logical representation of the relationships between the key entities in the current environment
現時邏輯數據模型邏輯性地表達現時環境內主要數據實體之間的關系。For sa & d projects, all the relationships among data entities defined in lds are supported by foreign keys in entity description part iii
對于系統分析及設計的計劃，所有在邏輯數據結構內界定的數據實體之間的關系，應得到在實體描述第iii部分內的外鍵碼所支援。For sa & d projects, all foreign keys are identified and marked in the entity description part iii ( entity key description ). for sa & d projects, all entities are in third normal form ( 3nf )
對于系統分析及設計的計劃，所有外鍵碼須經認定，並且在數據實體描述的第iii部分（數據實體關鍵碼描述）界定。Entity behaviour modelling looks at the system from the event point of view, so as to validate the high level processing and data views of the system and at the same time identify further detailed processing and data requirements
數據實體行為模型從"事件的觀點"來了解整個系統，以核證系統的高層次程序及數據觀點，並同時認定更加詳細的程序及數據需求。Then it presents the function of the input information such as mps ( master production schedule ), bom ( bill of material ). finally, it gives all kinds of ways to optimize the computing of mrp, then presents the optimized mrp computing scheme. in chapter 3, after making a detailed investigation into manufacturing industry, it analyzes the function demand of mrp and design the function accordingly
第三章在對我國製造企業的充分調研的基礎上，分析了物料需求計劃子系統的功能需求；根據系統的功能需求，用分層數據流圖分析了數據間的復雜關系，給出了相應的e ? r圖，並設計了相關的數據實體；該章的最後，結合我國製造企業生產管理的實際情況，對物料需求計劃子系統進行功能設計，使物料需求計劃子系統可以適合各種生產類型的製造企業對於物料需求計劃功能的需求。Consistency with other products all entities should be mapped to a data store of the required system dfd and documented in the required system logical data storeentity cross reference
所有數據實體應與所需系統數據流程圖的一個數據儲存處聯系，及在所需系統邏輯數據儲存處數據實體對照表加以證明。Add state indicator to elh. this is optional but definitely beneficial because the defined sequence of events can be enforced and current state of a particular entity occurrence can be pinpointed
加進狀態指標並不是必須的，但這個做法肯定是有用的，因為能加強事件次序，和準確地指出個別數據實體具體值的現狀。The description in part i can describe the entity and explain the jargons, if any. all volumetric information are reasonable ( e. g. a one - to - one optional detail relationship must have the number of entity occurrence in master entity greater than that of the detail entity )
所有與數據量有關的資料均是合理的（例如：就一對一的非強制數據實體的關系來說，主數據實體具體值的數目，必須較詳細數據實體的數目為大） 。分享友人