物流管理外文翻譯--物流信息服務(wù)系統(tǒng)的優(yōu)化管理（英文）

1、 Leonardo Journal of Sciences ISSN 1583-0233 Issue 10, January-June 2007 p. 47-54 47 http://ljs.academicdirect.org The Optimal Management of Informational Servicing Logistic Systems Safwan Al SALAIMEH Department of Compu

2、ter Science, Irbid National University, Jordan, Irbid - Jordan safwan_71@yahoo.com Abstract This paper reviews optimization problems of informational servicing logistic systems (ISLS) management in problems class, which

3、 can be solved by the queuing system (QS) theory. Examples of mathematics models building and effective algorithm development for quasi-optimal management of informational servicing logistic systems are presented. Key

4、words Logistics, logistic information management, computerized administrator-coordinator, computer logistic, mathematical models, structure. The logistic systems concept The logistics, as a cognition form, is known from

5、the great antiquity. Originally, the art of rational measuring, skilled computing and logical conclusions were in its competence [1]. The logistic systems are creating for the purpose of the industrial and economic activ

6、ity and the finance-economic activity coordination, based on the united coordinated organizational, informational, hardware and software maintenance, aggregate of interconnected sub-units of integrated systems. Th

7、e logistic system of an organization-technological type includes: maintenance supply, stuff and component keeping, finished commodity production, goods shipping to intermediate warehouse, final sale and use of finished c

8、ommodity. Leonardo Journal of Sciences ISSN 1583-0233 Issue 10, January-June 2007 p. 47-54 49 The logistic systems’ structuring The ISLS structuring problem consists in mathematical models development, methods and algori

9、thms of rational analysis selection and system structure synthesis based on principals of decomposition-aggregation, identification-optimization and made rational decisions coordination for purposes of total effect recei

10、ving from the integrated system, which exceeds effect sum, taken separately from each system component. The problem of effective integrated structure forming for logistic OTS functioning in a common case belongs to the n

11、onlinear accidental programming problems class: Dk * * * i i I i S S i 1 S argextr E Q (S) Q / Q ∈ =? ? ? ? = λ ? ? ? ? ? ? ? ∑(1) where SD = feasible region, which meets to material balance equation, order of informatio

12、n transformations, stages of quasi-optimal management decisions making; Q1, Q2, Q3, = quality criterions, accordingly, for estimation of incumbent on system activities functions; fullness, reliability and timeliness of i

13、nformation receiving which needed for management tasks; total costs for concrete structure type design and exploitation; λi = criterions weights, at that i i 1 λ = ∑ ; E{?} = average of distribution operator. The formali

14、zation of problem (1) supposes the attraction of additional information about parameters and characteristics of structure synthesis process. Parameters are necessary for limits precise which aggregate determines the feas

15、ible region SD. Operational characteristics observations let to determine the empirical frequency distribution and calculate the average of distribution operator E{?}. The replacement of factual parameters and characteri

16、stics by basic data for design can give rise to sudden results. And so, in practices, the structuring is often content with reductive target settings and their decisions are finding with heuristic artificial procedures.

17、Every ISLS (system of collection, transmission and transformation of information) characterises by its integrated structure, which is described by service line number, possibility and discipline of queue formation, requi

18、rements of incoming flow number, queue service discipline. Information servicing systems are subdivided into single-line and multi-circuit systems, with waiting and breakdowns when the service line is busy, with limited