Service-Oriented Architecture (SOA): A Deep Dive
Introduction to Service-Oriented Architecture (SOA)
Originally authored by Raghu Kodali (Original Article)
Translated by Mario Alberto La Menza
Summary
Service-Oriented Architecture (SOA) represents the cutting edge of software engineering and is a frequent topic of discussion among development teams. This document introduces SOA, discusses the business needs it addresses, defines what a service-oriented architecture entails, and clarifies common myths and realities surrounding SOA.
What is SOA?
A service-
Read MoreObject-Oriented Programming and PC Architecture
Object-Oriented Programming
Purpose: To manage complex data structures and programs within an organized framework. A data object is not simple; it contains several well-structured components.
Class
Classes are object declarations, also definable as object abstractions. A class is a static construct describing common behavior and attributes. It’s formalized through a data structure, including data and functions called methods. Methods define behavior. Every class has two key methods:
- Constructor: Called
Essential C++ Algorithm Examples
Kadane’s Max Sum Subarray
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int maxSubarraySum(vector<int>& arr) {
int maxSoFar = arr[0], currentMax = arr[0];
for (int i = 1; i < arr.size(); i++) {
currentMax = max(arr[i], currentMax + arr[i]);
maxSoFar = max(maxSoFar, currentMax);
}
return maxSoFar;
}
int main() {
vector<int> arr = {-2, 1, -3, 4, -1, 2, 1, -5, 4};
cout << maxSubarraySum(
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Disk Organization and Operating System Fundamentals
Disk Organization
A disk comprises several disks or plates that store information on their surfaces. This information is organized in concentric tracks, further divided into sectors. Tracks are arranged in cylinders, where a cylinder consists of all tracks occupying the same position across various plates. Reading all tracks within a cylinder avoids head movement, which is time-consuming.
The drive reads/writes data to a disk sector by sector, storing the data in a buffer. Interleaving, a technique
Read MoreMultimedia Fundamentals: Formats and Applications
Multimedia
A system using multiple communication means to present information, such as text, animation, images, video, and sound.
Benefits
- Improved Attention
- Enhanced Understanding
- Effective Learning
Hypermedia
The result of merging hypertext and multimedia.
Multimedia Applications
- Art
- Education
- Entertainment
- Engineering
- Medicine
- Mathematics
- Business
- Scientific Research
Multimedia in Education
Used for computer-based learning courses, reference books, and encyclopedias. MMS (Multimedia Messaging Service) enables
Read MoreUnderstanding the Transport Layer and Its Protocols
The Transport Layer is the layer at end hosts. It lies between the application and network layer and allows communication between processes on hosts using a transport protocol. A process is an instance of an application, e.g., browser, Netflix client, etc. The network layer allows communication between hosts. Transport Protocols provide logical communication between processes. Common transport protocols are TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). TCP provides connection-
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