網(wǎng)絡(luò)考試系統(tǒng)外文翻譯(共9頁)

1、精選優(yōu)質(zhì)文檔-傾情為你奉上外文資料：Regard along with the network technology daily popularization and the information construction, now the school generally all compounded the test safe monitoring equipment, and has built the management information system in this foundation, to information construction positive impet

2、us function. But has the software construction in the practical work to fall behind the phenomenon which constructs to the hardware, for example, the education administration level also pauses to examinee's inspection in the traditional test pattern, not only the efficiency is low, moreover also

3、 has many malpractices, creates the information resource the waste.Test non- paper, network, not only can effectively reduce the correlation personnel's work load, the better use computer and the network superiority, enhances the working efficiency, also can fairly cause the test, to be fair. Ba

4、sed on this kind of demand, we developed set of performance stably for the test design, safe have been reliable the network which, the ease of operation was allowed to satisfy massively simultaneously uses to take a test the system. Causes the test the security, fairness, fair greatly to enhance. Af

5、ter this system actual movement uses, effect good, not only greatly advanced the test information construction advancement, moreover causes the school to examinee's inspection more scientific, air, fair, to be highly effective and the network. The network test system should be able to satisfy th

6、e massive examinees in any place, any time all can participate in the test, and automatic judgment result. Through to the test service demand multianalysis, the main function which this system should provide as follows: 1) The examinee may on-line carry on the test, after the test had finished by co

7、mputer automatic judgment score, and the recording result, the examinee also may examine the standard answer. If the test time, the system automatic prompt completes an assignment and stops doing answers. 2) The teacher may on-line establish the revision question bank, revises the examinee individua

8、l material, and monitors the examination place situation and so on. 3) the manager may on-line establish reference material and so on the examinee, teacher, the verification question bank, arranges the examinee to take a test, revises the examinee and the examination place condition, inquires the ex

9、aminee to take a test the result, monitors the examination place situation as well as the establishment test project with tests the test question number and so on. Moreover for the guarantee test fair, is fair, the examination paper test question stochastically extracts by the computer from the ques

10、tion bank. For strictly will cease the test to cheat the behavior, the system later is best also should provide the function which the fingerprint confirmation will register. Its main flow is: After the user basis is authorized registers, the system basis user jurisdiction difference, establishes th

11、e corresponding operation. After the train attendant registers may carry on the test, operation and so on examination result and standard answer; After the teacher registers may carry on revises operation and so on examinee's individual material, revision question bank, revision user password as

12、 well as monitoring test situation; After the manager registers besides has teacher's all functions, but also may carry on the verification question bank (only has verified question bank only then to be allowed to carry on test),establishment operation and so on test time, inquiry, printing test

13、 result. Also may establish following several items: Test workstation: Carries on the test to the examinee the customer end procedure. Mainly provided has carried on according to the system disposition stochastically sets the topic of a composition, the confirmation registers, test function and so o

14、n time prompt, automatic judgment result, examination test result as well as standard answer. Test workstation divides into the customer end procedure and the Web way in the realization way, former allows the examinee (support touches screen test pattern) through the customer end procedure the way t

15、o carry on the test, latter allows the examinee to carry on the test through the test special-purpose network. The test establishes the workstation: Carries on the establishment tote test service the customer end procedure. Mainly provided the revision question bank, the verification question bank,

16、revised the examinee material, establishes the examinee/examination place condition, the inquiry/printing test result, the question bank inducts/derives function and so on function as well as monitoring test situation. Test application server: Network on-line test system application server. Mainly h

17、as realized the data cushion and the test service logic seal and duplicate uses the function, is takes a test the workstation, the test establishes the workstation and the database server connection. Has provided the rich connection using the server, may increase or the reduced service rule through

18、the module way, considered later will take a test the service promotion, also should reserve the new test type connection using the server level, will cause later the system to expand conveniently. Moreover, for guarantee test effectiveness, using server support hot backup database server pattern, n

19、amely if presently is using the database server breaks down, then in the system disposition reserve database server automatic cutover for the current database server, all these is does not know in the user with in the intervention situation carries on. Through application server level effectiveness,

20、 truly caused the test service to achieve the use easily, the function formidable, the performances table, the modular degree was strong, has satisfied the new time to an information construction higher request.Furthermore, considered the system the stability with carries out the efficiency, in the

21、analysis network configuration foundation, the system later might select distributional three C/S and B/S will mix with the overhead construction method, namely: The examinee if miscarries on the test in this section, may choose the C/S structure to touch the screen test and the examination site tes

22、t pattern; If the examinee is carries on the test in the outside areas, may choose the B/S structure the examination site test pattern.The network on-line test system needs to carry on the data through the network the transmission, therefore applies the server, the Web server and the database server

23、 security must from the system design time carries on the plan. We might use below the security measure:1) In stalls the reliable firewall, carries on the effective containment to the exterior malicious attack. 2) The server (including applies server, database server and the Web server) the hard dis

24、k district transformation is the NTFS form, open sure sportive jurisdiction according to the different demand for the user.3) May write the essential code the DLL module, not only streng the need the security, simultaneously also caused the system the modular degree to strengthen, enhanced the syste

25、m performance. 4) May carry on two times of encryptions in the database to the essential data.5) 2,000 data backups with restores the function using SQL the SERVER, guarantees the database information the integrity and the security. The current software quite popular system structural model mainly h

26、as: C/S structural model and B/S structural model. These two kinds of structures may divide into two with the multilayered overhead con saturation, the main difference lies in whether has used them idle ware (for example COM+ or CORBA) comes the overhead construction to apply the server level. This

27、structural model unified distributional multilayered C/S and the B/S merit designs, divides into the customer level, business logic level and the data level in the usual situation.Customer level: Below mainly uses for to satisfy the overall system each kind of visit demand and processes works: The r

28、eceive user's in put, carries on the analysis inspection to user's input and makes corresponding processing; Sends out the data to the server to request that, demonstrated by movement result which transmits using the server. The customer level usually is composed by the customer advancement,

29、 the customer advancement mainly includes the advancement in this model which the IE browser dynamic foundation the advancement as well as the customer end test workstation founds and so on.Business logic level: Will be responsible to receive the request which will transmit from the customer end or

30、the tour and to request will bequeath the first floor to carry on processing, simultaneously will request the processing result transmission for the customer end or the brow ser. Business logic level advancement mainly is composed by middle ware MTS/COM+ as well as some related processing advancemen

31、ts.Microsoft Corporation has promoted Windows DNA under the Windows platform (Distributed inter Net Application Architecture, distribution network application structure) strategy. Takes Windows COM+ in the DNA strategy the middleware. In the Windows 2,000 above operating systems, COM+ has become a s

32、ystem part. COM+ was the intermediate level has characteristic provided the load balance, the object pond (Object Pooling), business characteristic and so on a series of force support, and the procedure which worked in COM+ receives the operating system the protection, thus the biggest guarantee sys

33、tem security, stable and was highly effective.In this model, mainly through the ADO realization data dynamic ration, ADO is the Microsoft current mainstream data accessing module, compares with the former data accessing technology, it has provided the extremely simple object model, and has sealed th

34、e complex first floor visit technology. Data level: Mainly provides the digital data service for business logic level, like the stored datum operating result, returns to the data retrieval result and so on. This structural model has overcome two C/S malpractice, fully has used distributional multila

35、yered C/S and the multilayered B/S merit, extremely good has used the existing network resources, and is to the existing network resources effective integration, the use as well as the expansion. Then what is XML? XML (eXtended Markup Language) is one kind of mark language, likes HTML which we is fa

36、miliar with to be same, but the XML label is according to own needs to come by the people to have custom-made, in other words, any word and the character all may do for the label uses, so long as can the accurate expression data attribute. The accurate expression data meaning is the biggest advantag

37、e which XML brings. Moreover, the XML use text mode saves its form, is advantageous for between the procedure, the operating system links up, the exchange, the adapt ion at present the Internet development. XML appeared the short several years to obtain the widespread application, at present newly p

38、romotes software nearly could support XML. For example Microsoft Net series software, Office series software and so on. Does not leave for several years, XML can replace HTML to become on Internet the standard mark language? This system if introduces the XML language expression data the advantage, i

39、s causes in the system the customer end data demonstration and the system processing data separation, reduces the development system complex, reduces the system process time, reduces the network transmission quantity, thus enhances the system to carry out the efficiency. The unified modeling languag

40、e (Unified Modeling Language, UML) is the object-oriented software standardized modeling language. Because its simple, is unified, also can express in the software design the tendency and the static information, at present already became the visible modeling language in fact industry standard.From e

41、nterprise information system to base on Web distributional application, even is strict real-time inserts the type system all suitably to come in handy UML to come the modeling. This is one kind of rich expression strength language, may describe each kind of view which the development needs, then tak

42、e this as foundation assembly system. This system if introduces UML the main superiority enhances the software development efficiency, reduces the development time, saves the development cost. Take the UML language modeling should be by Rational Corporation's Rose tool as best. But Rose quite ex

43、pensive, and Rose quite is huge, uses is not too convenient. Borland Corporation produces the ModelMaker modeling tool not only supports, moreover also has its original place in the object modeling. Therefore the modeling tool selects ModelMaker. 窗體底端翻譯：隨著網(wǎng)絡(luò)技術(shù)的日益普及和信息化建設(shè)的出視，現(xiàn)在學(xué)校普遍都配制了考試安全監(jiān)控設(shè)備，并在此基礎(chǔ)上

44、搭建了管理信息系統(tǒng)，對信息化建設(shè)起到了積極的推動作用。但在實(shí)際工作中存在著軟件建設(shè)落后于硬件建設(shè)的現(xiàn)象，例如，教育管理層對考生的考核還停留在傳統(tǒng)的考試模式，不僅效率低下，而且還存在許多弊端，造成信息資源的浪費(fèi)?？荚嚨臒o紙化、網(wǎng)絡(luò)化，不僅能有效減少相關(guān)人員的工作量，較好的利用計(jì)算機(jī)與網(wǎng)絡(luò)的優(yōu)勢，提高工作效率，也能使考試更加公平、公正?；谶@種需求，我們?yōu)榭荚囋O(shè)計(jì)開發(fā)了一套性能穩(wěn)定、安全可靠、操作方便的可以滿足大量同時使用的網(wǎng)絡(luò)考試系統(tǒng)。使得考試的安全性、公平性、公正性大大提高。本系統(tǒng)實(shí)際運(yùn)行后使用后，效果良好，不僅大大推進(jìn)了考試的信息化建設(shè)進(jìn)程，而且使得學(xué)校對考生的考核更加科學(xué)化、公平化、公正化

45、、高效化和網(wǎng)絡(luò)化。網(wǎng)絡(luò)考試系統(tǒng)應(yīng)該能滿足大量考生在任何地方、任何時間都能參加考試，并自動判斷成績。通過對考試業(yè)務(wù)需求的詳細(xì)分析，本系統(tǒng)應(yīng)提供的主要功能如下：1）  考生可以在網(wǎng)上進(jìn)行考試，考試結(jié)束后由計(jì)算機(jī)自動判斷分?jǐn)?shù)，并記錄成績，考生還可以查看標(biāo)準(zhǔn)答案。如果考試時間到，系統(tǒng)自動提示交卷并停止作答。2） 教員可以在網(wǎng)上建立、修改題庫，修改考生個人資料，監(jiān)控考場情況等。3）  管理員可以在網(wǎng)上建立考生、教員等檔案資料，審核題庫，安排考生考試，修改考生和考場狀態(tài)，查詢考生考試成績，監(jiān)控考場情況以及設(shè)置考試項(xiàng)目與考試題數(shù)等。另外為保證考試的公平、公正，試卷的試

46、題由計(jì)算機(jī)隨機(jī)從題庫抽取。為嚴(yán)格杜絕考試的作弊行為，系統(tǒng)以后最好還應(yīng)該提供指紋驗(yàn)證登錄的功能。其主要流程是：用戶根據(jù)授權(quán)登錄后，系統(tǒng)根據(jù)用戶權(quán)限的不同，設(shè)置相應(yīng)的操作操作。乘務(wù)員登錄后可以進(jìn)行考試，查看成績及標(biāo)準(zhǔn)答案等操作；教員登錄后可以進(jìn)行修改考生的個人資料、修改題庫、修改用戶密碼以及監(jiān)控考試情況等操作；管理員登錄后除具有教員的一切功能外，還可以進(jìn)行審核題庫（只有審核過的題庫才可以進(jìn)行考試）、設(shè)置考試時間、查詢、打印考試成績等操作。也可以設(shè)置以下幾項(xiàng)：考試工作站：對考生進(jìn)行考試的客戶端程序。主要提供了根據(jù)系統(tǒng)配置進(jìn)行隨機(jī)出題、驗(yàn)證登錄、考試時間提示、自動判斷成績、查看考試成績以及標(biāo)準(zhǔn)答案等功

47、能。其中考試工作站在實(shí)現(xiàn)方式上又分為客戶端程序與Web方式，前者允許考生通過客戶端程序（支持觸摸屏考試模式）的方式進(jìn)行考試，后者則允許考生通過考試專用網(wǎng)進(jìn)行考試。考試設(shè)置工作站：對考試業(yè)務(wù)進(jìn)行設(shè)置的客戶端程序。主要提供了修改題庫、審核題庫、修改考生資料、設(shè)置考生/考場狀態(tài)、查詢/打印考試成績、題庫的導(dǎo)入/導(dǎo)出功能以及監(jiān)控考試情況等功能?？荚噾?yīng)用服務(wù)器：網(wǎng)絡(luò)在線考試系統(tǒng)的應(yīng)用服務(wù)器。主要實(shí)現(xiàn)了數(shù)據(jù)緩沖及考試業(yè)務(wù)邏輯的封裝與復(fù)用功能，是考試工作站、考試設(shè)置工作站與數(shù)據(jù)庫服務(wù)器的接口。應(yīng)用服務(wù)器提供了豐富的接口，可以通過模塊方式增加或者減少業(yè)務(wù)規(guī)則，考慮到以后考試業(yè)務(wù)的升級，應(yīng)用服務(wù)器層還應(yīng)預(yù)留了新

48、考試類型的接口，使得以后的系統(tǒng)擴(kuò)展較為方便。另外，為保證考試的高效性，應(yīng)用服務(wù)器支持雙機(jī)熱備份的數(shù)據(jù)庫服務(wù)器模式，即如果當(dāng)前正在使用的數(shù)據(jù)庫服務(wù)器發(fā)生故障，則系統(tǒng)配置中的后備數(shù)據(jù)庫服務(wù)器自動切換為當(dāng)前數(shù)據(jù)庫服務(wù)器，這一切都是在用戶所不知曉與干預(yù)的情況下進(jìn)行的。通過應(yīng)用服務(wù)器層的高效，真正使考試業(yè)務(wù)做到了使用簡便、功能強(qiáng)大、性能穩(wěn)定，模塊化程度強(qiáng)，滿足了新時期對信息化建設(shè)的較高要求。再者，考慮到系統(tǒng)的穩(wěn)定性與執(zhí)行效率，在分析網(wǎng)絡(luò)配置的基礎(chǔ)上，系統(tǒng)以后可采用分布式的三層C/S與B/S混用的架構(gòu)方式，即：考生如果是在本段進(jìn)行考試，可以選擇C/S結(jié)構(gòu)的觸摸屏考試和考點(diǎn)考試模式；如果考生是在外地進(jìn)行考試，可以選擇B/S結(jié)構(gòu)的考點(diǎn)考試模式網(wǎng)絡(luò)在線考試系統(tǒng)需要通過網(wǎng)絡(luò)來進(jìn)行數(shù)據(jù)的傳輸，因此可應(yīng)用服務(wù)器、Web服務(wù)器與數(shù)據(jù)庫服務(wù)器的安全性必須從系統(tǒng)設(shè)計(jì)時就進(jìn)行規(guī)劃。我們可采用了以下安全措施：1）加裝可靠的防火墻，對外部的惡意攻擊進(jìn)行有效的遏制。2）將服務(wù)器（包括應(yīng)用服務(wù)器、數(shù)據(jù)庫服務(wù)器與Web服務(wù)器）的硬盤分區(qū)轉(zhuǎn)化為NTFS格式，根據(jù)不同的需求為用戶開設(shè)各自的權(quán)限。3）將關(guān)鍵代碼可寫成DLL組件，不但增強(qiáng)了安全性，同時也使系統(tǒng)的模塊化程度加強(qiáng)，提高