Three-tier covid-19 alert

Two and Three tier architecture

COVID-19 and dermatologists

Since the beginning of COVID-19 pandemic on December 2019, challenges on economic, political, social, hygiene- therapeutic and life style have emerged in many countries. Many researches are investigating on virus characteristics and its behavior and also preventive and therapeutic measures. Despite the virus not being dermatotropic, several skin manifestations have been observed. In this review...

Three-tier replication for FT-CORBA infrastructures

Enforcing strong replica consistency among a set of replicas of a service deployed across an asynchronous distributed system in the presence of crash failures is a real practical challenge. If each replica runs the consistency protocol bundled with the actual service implementation, this target cannot be achieved, as replicas need to be located over a partially synchronous distributed system to...

Three-tier View-based Mobile Workflows

Workflow technology has recently been employed not only within businesses but also as a framework for implementing services over the Internet. With the advancement and spreading of various mobile technologies and infrastructures, there is increasing demand for mobile users to connect to workflow management systems (WFMS). The basic requirement is to support SMS, WAP and web browsers on PDAs, in...

Patterns for Three-Tier Client/Server Applications

The three-tier client/server architecture is an evolution of the traditional two-tier model, and is receiving increased interest, particularly for large business applications. The main difference is that in a three-tier architecture, most of the functionality is separated out in a middle layer, called application servers, as shown in figure 1. Also, each client can use several application serve...