【正文】 點(diǎn)較低 的弱點(diǎn)，不再需要一步步周密細(xì)致地調(diào)查分析，并逐步整理出文字檔案。面向?qū)ο蠓椒ū粩U(kuò)展到各個領(lǐng)域，如面向?qū)ο蟮捏w系結(jié)構(gòu)、面向?qū)ο蟮挠布С?、面向?qū)ο蟮能浖_發(fā)環(huán)境、面向?qū)ο髷?shù)據(jù)庫、面向?qū)ο蟪绦蛟O(shè)計語言等。精確的講，對象是一些屬性及專用服務(wù)的封裝體，它是問題空間中一些東西的抽象。 具體說來人事檔案管理系統(tǒng)在功能上應(yīng)該具備以下這些特點(diǎn)： ，可以隨時對記錄進(jìn)行增加，修改，更新，刪除，瀏覽等編輯操作。在系統(tǒng)開始設(shè)計的時候應(yīng)該盡量考慮全面，尤其應(yīng)該仔細(xì)考慮用戶的各種需求。39。39。39。39。39。39。 通過系統(tǒng)的開發(fā)，我對面向?qū)ο蟮某绦蛟O(shè)計方法又有了更加深刻的認(rèn)識，對 Microsoft 公司出品的 Visual Fox Pro 的功能特性有了更多的了解。s go take a look. Cirocco rummaged through her locker and found a peagreen shipsuit that smelled as good as any of them. Most of the handy velcro patches were peeling. Her room was at the bottom of the carousel, midway between ladders three and four. She followed Gaby around the curving floor, then pursued her up the ladder. Each rung was a little easier than the last until, at the hub, they were weightless. They pushed off from the slowly rotating ring and drifted down the central corridor to the science module. SCIMOD in NASAese. It was kept dar k to make the instruments easier to read, and was as colourful as the inside of a juke box. Cirocco liked it. Green lights blinked and banks of television screens hissed white noise through confetti clouds of snow. Ugene Springfield and the Polo sisters floated around the central holo tank. Their faces were bathed in the red glow. Gaby handed the plates to the puter, punched up an imageintensifying program, and indicated the screen Cirocco should watch. The pictures were sharpene d, bined, then rapidly alternated. Two miniscule dots blinked, not far from each other. There it is, Gaby said proudly. Small proper motion, but the plates are only twenty three hours apart. Gene called to them. Orbital elements are ing in, he said. Gaby and Cirocco joined him. Cirocco glanced down and saw his arm go possessively around Gaby39。d see that. Gaby chewed a knuckle. Yet if it was formed with the others, it ought to be less eccentric. The Polo shrugged. 39。re giving me enough reason? she countered, a little breathlessly. But the truth was she had been thinking of how amusing the four of them must have looked to Bill, who had stayed out of the shuffle of bodies. That seemed to be his style, to sit back and let people sort themselves out, then move in when it began to be depressing. Calvin had certainly been depressed. So had Cirocco. Whether from preoccupation with Gaby or just inexperience, Calvin had not been much of a lover. Cirocco thought it was a little of both. He was quiet, shy, and bookish. His records showed he had spent most of his life in school, carrying an academic load that left little room for fun. Gaby just didn39。s Third Law of Motion, the one that used to refer to , action and reaction. Cirocco had done some calculations on the matter, and had found that the force of ejaculation was not nearly enough to account for the asmic acceleration she always observed at that moment. The cause was certainly spasms of the large muscles of the leg, but the effect was beautiful and a little frightening, as though they had bee big, fleshy balloons losing air, forced away from each other at the moment of closest approach. They would careen and carom, and finally e to rest together again. Bill felt it building, too. He grinned, and the hydroponic lamps made his crooked teeth luminescent. PUBIREL DISPATCH 0056 5112125 DSV RINGMASTER (NASA 447D, LS/1, HOUSTONCOPER NICUS GCR BASELINE) IONES, CIROCCO, MISCOM FOR PARAPHRASING AND IMMEDIATE RELEASE BEGINS: Gaby has settled on Themis as the name for the new moon. Calvin agrees with her, though they arrived at the name from different directions. Gaby mentions the alleged sighting of (what would have been) a tenth moon of Saturn by William Henry Picketingdiscoverer of Phoebe, Saturn39。 se e PU BIREL DI SPATCH 0009,113124) and a sixth is called Titan. Themis was a Titan, so Calvin39。t seem to care, either. Cirocco sent out signals that could have drawn her five to We if the FCC had known about them, but Gene wasn39。s tongue had started at Cirocco39。s affairs. Saturn sat in the middle of the tank, fat and brassy. Eight blue circles were drawn around it, each larger than the last, eac h in the equatorial plane of the rings. There was a sphere on each circle, like a single pearl on a string, and beside the pearls were names and numbers: Mnemosyne, Janus, Mimas, Enceladus, Tethys, Dione, Rhea, Titan, and Hyperion. Far beyond those orbits was a tenth one, visibly tilted. That was Iapetus. Phoebe, the most distant, could not be shown on the scale they were using. Now another circle was drawn in. It was an eccentric ellipse, almost tangent to the orbits of Rhea and Hyperion, cutting right across the circle that represented Titan. Cirocco studied it, then straightened. Looking up, she saw deep lines etched on Gaby39。我參考了許多 相關(guān)的書籍和文獻(xiàn)資料，例如： １９９６年７月５日第八屆全國人民代表大會常務(wù)委員會第二十次會議通過的 《中華人民共和國檔案法》修正案、 勞動部 和 國家檔案局 的 《企業(yè)職工檔案管理工作規(guī)定》 、《人事檔案管理工作制度》、《某國有大中型企業(yè)人事檔案借閱查詢的規(guī)定》、 《數(shù)據(jù)庫技 術(shù)及開發(fā)教程（修訂版）》 、 《 管理信息系統(tǒng)概論 》 、 《 SQL Server 2020》 教程 、 《 Visual Fox Pro中文版數(shù)據(jù)庫編程實(shí)戰(zhàn)訓(xùn)練 》 。39。39。39。39。39。39。 1． 數(shù)據(jù)庫概念結(jié)構(gòu)設(shè)計 員工號 姓名 家庭出身 政治面目 文化程度 民族 籍貫 出生日期 出生日期 健康狀況 婚姻狀況 性別 員工基本情況 2．?dāng)?shù)據(jù)庫邏輯結(jié)構(gòu)設(shè)計 在 上面的數(shù)據(jù)庫 概念結(jié)構(gòu) 設(shè)計的基礎(chǔ)上，把實(shí)體與屬性之間的關(guān)系 轉(zhuǎn)化為 Visual fox Pro ，并 形成數(shù)據(jù)庫中的表格 。 數(shù)據(jù)庫表 之間 的任意組合條件 查詢 ， 便于在實(shí)際檔案管理操作中對 某 種情況，多種條件下的人員情況進(jìn)行統(tǒng)計查看。這些操作是對象的行為，通過它們改變對象的狀態(tài)（即屬性值）。 面向?qū)ο蠓椒ㄕJ(rèn)為，客觀世界是由各種各樣的對象組成。實(shí)現(xiàn)原型方法的關(guān)鍵是能否提供一個合適的軟件開發(fā)環(huán)境和一套高級的軟件工具，能否根據(jù)需求說明轉(zhuǎn)換成現(xiàn)實(shí)系統(tǒng)。人事檔案管理系統(tǒng)也不例外，良好的總體規(guī)劃 ，可以使系統(tǒng)有明確的戰(zhàn)略目標(biāo)和科學(xué)的開發(fā)計劃，使系統(tǒng)有較強(qiáng)的適應(yīng)性及較高的可靠性，此外，還可以降低開發(fā)成本，減少開發(fā)時間。面向?qū)ο蠓椒ǖ睦^承性體現(xiàn)了概念分離抽象，便于軟件演化后的擴(kuò)充。它強(qiáng)調(diào)直接以問題域（客觀世界）中的事物為中心來思考問題，認(rèn)識問題，并根據(jù)這些事物的本質(zhì)特征，把他們抽象的表式為系統(tǒng)的對象，作為系統(tǒng)的基本單位。在這種結(jié)構(gòu)中，數(shù)據(jù)庫系統(tǒng)，包括應(yīng)用程序、數(shù)據(jù)庫管理系統(tǒng)、數(shù)據(jù)等都集中存放在主機(jī)上，所有處理任務(wù)都由主機(jī)來完成?？傊?，數(shù)據(jù)庫的一切操作都是通過數(shù)據(jù)庫管理系統(tǒng)來實(shí)現(xiàn)的。目前，各種領(lǐng)域?qū)?shù)據(jù)管理的需求越來越多，各行各業(yè)的信息系統(tǒng)都離不開數(shù)據(jù)庫的支持。例如：檢索迅速、查找方便、可靠性高、存儲量大、保密性好、壽命長、成本低等。 管理信息信息系統(tǒng)的總體結(jié)構(gòu)如下圖所示： 管理信息系統(tǒng)結(jié)構(gòu)圖 4． 管理信息系統(tǒng)在企業(yè)管理工作中的重要性