ISEM540_HW2_07_08_2016 - ISEM540 Homework 2 Sandeep reddy...

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ISEM540: Homework 2 Sandeep reddy kalluri ID# 170374 TOPIC: “How Did I Learn to Love Web, XML and System Integration” Problem 1: Middleware Concepts a) Search the Internet and identify a definition of Middleware that you like software that acts as a bridge between an operating system or database and applications, especially on a network. Anything between the kernel and user applications is considered middleware. Functionality such as gesture recognition or speech recognition is usually processed by some middleware, and the results are transmitted to user applications. b) Compare and contrast the definition you found with the definition in the course text/slides Enabling applications and end users to interact with each other across a network. Resides above the network and below the business-aware software. Both the Internet and the slides explains the same Middleware is a general term for software that serves to "glue together" separate, often complex and already existing, programs. Some software components that are frequently connected with middleware include enterprise applications and Web services. c) According to this definition, which ones of the following are considered as middleware (put an * next to all that apply) Router, Web Services*, Payment system, HTTP, antivirus software, cookies, proxy servers, Ajax, email, operating system, Java, inventory management system, RPC*, C#, CRM system, SOAP* d): Given the architectural client/server configurations in Figure 1 that show how applications can be split across computer1 (client) and computer2 (server), use the following table to answer the following questions: Show the middleware for each configuration. Which configuration will be most secure Which configuration will give best performance? Which configuration will minimize the network traffic?
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Presentation Logic Business logic Data Presentation Logic Business logic Presentation Logic Business logic Data Data Presentation Logic Business logic Business logic Data Presentation Logic Business logic Data Data a). Centralized (one Tier) b). Remote presentation c). Remote data d). Distributed programs e). Distributed data Computer 1 Computer 2 Terminal Emulator Figure 1: Architectural Configurations Conf a Conf b Conf c Conf d (business logic split in middle) Conf e (the data is duplicated) 1.Middleware used (e.g., RPC, RSQL) Nothing Message sql RPC RPC 2. Security (Low, Medium, High) Medium High Medium Low Medium 3. User Performance at Computer1 (Low, Medium, High) Low Low Medium Medium Low 4. Network traffic generated between computer 1 and computer2 Medium Low Medium Medium Low
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Problem2: XML, Web 2.0 and Semantic Web a) Develop XML representation of your laptop, your car, your house or any other favorite object in your life and its main features. This document should have
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