Search results
Results from the WOW.Com Content Network
A systems development life cycle is composed of distinct work phases that are used by systems engineers and systems developers to deliver information systems.Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed expectations, based on requirements, by delivering systems within scheduled time frames and cost estimates. [3]
In computer science and computer engineering, computer architecture is a description of the structure of a computer system made from component parts. [ 1] It can sometimes be a high-level description that ignores details of the implementation. [ 2] At a more detailed level, the description may include the instruction set architecture design ...
A content delivery network or content distribution network ( CDN) is a geographically distributed network of proxy servers and their data centers. The goal is to provide high availability and performance ("speed") by distributing the service spatially relative to end users. CDNs came into existence in the late 1990s as a means for alleviating ...
Publish–subscribe is a sibling of the message queue paradigm, and is typically one part of a larger message-oriented middleware system. Most messaging systems support both the pub/sub and message queue models in their API; e.g., Java Message Service (JMS). This pattern provides greater network scalability and a more dynamic network topology ...
In complex continuous delivery environments and/or software as a service system, differently-configured versions of the system might even exist simultaneously in the production environment for different internal or external customers (this is known as a multi-tenant architecture), or even be gradually rolled out in parallel to different groups ...
The von Neumann architecture —also known as the von Neumann model or Princeton architecture —is a computer architecture based on a 1945 description by John von Neumann, and by others, in the First Draft of a Report on the EDVAC. [ 1] The document describes a design architecture for an electronic digital computer with these components: The ...
Service-oriented architecture. In software engineering, service-oriented architecture ( SOA) is an architectural style that focuses on discrete services instead of a monolithic design. [ 1] SOA is a good choice for system integration. [ 2] By consequence, it is also applied in the field of software design where services are provided to the ...
The NIST Enterprise Architecture Model is a five-layered model for enterprise architecture, designed for organizing, planning, and building an integrated set of information and information technology architectures. The five layers are defined separately but are interrelated and interwoven. [2] The model defined the interrelation as follows: [3 ...