Cooperative Information Systems are defined as numerous, diverse systems, distributed over large, complex computer and communication networks which work together to request and share information, constraints, and goals. The problem of data quality becomes crucial when huge amounts of data are exchanged and distributed in such an intensive way as in these contexts. In this paper we make some pro...

The paper describes how multimedia technology and cooperative learning are used to teach an online course at the junior level covering signal processing techniques in communications. Students study online presentations enhanced by multimedia animations and perception quizzes, discuss problems using an asynchronous conferencing system, and meet weekly on campus for a cooperative laboratory sessi...

Active database management systems(ADBMS) uses Event-Condition-Action rules (ECA rules). Each ECA rule speciies what action to be taken when an event occurs and the speciied condition is satissed. In this paper, we introduce a concurrency control scheme for handling nested cooperative transactions using detached mode ECA rules of an ADBMS. A state transition model has been proposed to specify d...

This paper describes the realisation of and experiences with two complementary tools for the support of cooperative processes: electronic circulation folders and shared workspaces. Circulation folders support structured work processes, shared workspaces provide a working environment for less structured processes. Both approaches are complementary and their combined usage provides new and very f...

considering the efficiency studies play a role in making available the revise in relative importance, policy reforms and resource management, this study has been accomplished in fish beach seine cooperative companies located in golestan province and used dea approach to measure the technical efficiency (te) and factor effects. the survey data were gathered from 20 farms, which selected via cens...

Cooperatives in order to improve the welfare of their members form a savings and loan unit. However, its development, existence Jombang branch Delta Surya Purnama Savings Loans Cooperative often experiences problems risk management bad credit. Based on faced by Loan Cooperative, purpose this Community Service activity is provide socialization assistance preparing Risk credit so as minimize The ...

Cooperative applications require advanced transactional services that make the sharing and exchange of information as natural as possible while preserving a notion of consistency. Conventional transaction models that were based on the ACID properties do not meet the typical requirements of cooperative applications. The CoAct model [RKT95, WK96] is designed for supporting cooperative work in int...

The study assessed beneficiaries’ satisfaction in the management of loag-contract components by cooperatives involved in the farm credit delivery in Edo State. The objective was to identify the components of the farm loan contract, examine the management strategies and rate the beneficiaries’ satisfaction of such management strategies. This was done by purposively selecting 40 cooperatives invo...

Abstract   Vertical cooperative (co-op) advertising is typically a cost sharing mechanism and coordinated effort by the channel’s members in order to increase demand and overall profits. In this marketing strategy, the manufacturer shares a fraction of the retailer’s advertising investment. This paper studies the advertising and pricing decisions in a retailer-manufacturer supply chain in which...

Reading comprehension has recently been reconceptualized in EFL reading instruction to foreground the importance of putting a social perspective on learning. Developed as a crucial aspect of Vygotskian sociocultural theory, activity theory views reading as a socially-mediated activity, for which the prerequisite cognitive processes are distributed among teacher, individual reader, other student...