Question

Develop a rough system design that implements a messaging application. Document your design in writing. An appropriate system design for this assignment includes no more than 10 components. (70 points)

Answer 1

SQLite DB :

SQLite is a relational database administration framework contained in a C programming library. As opposed to numerous other database administration frameworks, SQLite isn't a customer server database motor. Or maybe, it is installed into the end program.

SQLite is ACID-consistent and executes the vast majority of the SQL standard, utilizing a progressively and feebly composed SQL linguistic structure that does not ensure the space respectability.

SQLite is a well-known decision as inserted database programming for neighborhood/customer stockpiling in application programming, for example, internet browsers. It is ostensibly the most generally conveyed database motor, as it is utilized today by a few across the board programs, working frameworks, and implanted frameworks, (for example, cell phones), among others. SQLite has ties to many programming dialects.

XMPP:-

Extensible Messaging and Presence Protocol (XMPP) is a communication protocol for message-arranged middleware dependent on XML (Extensible Markup Language).[1] It empowers the close ongoing trade of organized yet extensible information between any at least two system entities.[2] Originally named Jabber,[3] the protocol was produced by the Jabber open-source network in 1999 for close continuous texting (IM), presence data, and contact list support. Intended to be extensible, the protocol has been utilized additionally for distributing buy in frameworks, motioning for VoIP, video, document exchange, gaming, the Internet of Things (IoT) applications, for example, the shrewd lattice, and person to person communication administrations.

In contrast to most texting protocols, XMPP has characterized in an open standard and utilizations an open frameworks approach of improvement and application, by which anybody may actualize an XMPP benefit and interoperate with other associations' usage. Since XMPP is an open protocol, executions can be produced utilizing any product permit and numerous server, customer, and library usage are dispersed as free and open-source programming. Various freeware and business programming usage additionally exist.

HTTP:- HTTP is known as a stateless protocol on the grounds that each direction is executed autonomously, with no information of the directions that preceded it. This is the primary reason that it is hard to execute Web locales that respond keenly to client input. This weakness of HTTP is being tended to in various new advancements, including ActiveX, Java, JavaScript, and treats.

Mnesia:- Mnesia is a disseminated, delicate ongoing database administration framework written in the Erlang programming dialect. It is dispersed as a feature of the Open Telecom Platform. Mnesia was produced by Ericsson for delicate continuous circulated and high-accessibility figuring business related to telecoms. It was not expected as a general office-based information handling database administration framework, nor to supplant SQL-based frameworks. Rather, Mnesia exists to help Erlang, where DBMS-like perseverance is required. It shares more for all intents and purpose with embeddable DBMS, for example, Berkeley DB than with any SQL database server.

Ejabbered clustering:- The reason for ejabberd clustering is to have the capacity to utilize a few servers for a solitary or little gathering of huge spaces, for fault-tolerance and scalability.

YAWS server:- Yaws is a web server written in Erlang by Claes Wikström. Yaws can be installed into other Erlang-based applications or keep running as a normal independent web server. Since Yaws utilizes Erlang's lightweight threading framework, it performs well under high simultaneousness

Riak:- Riak is a circulated NoSQL key-esteem information store that offers high accessibility, fault tolerance, operational effortlessness, and scalability. Notwithstanding the open-source variant, it arrives in a bolstered venture form and a distributed storage rendition

GCM:- Google Cloud Messaging (usually alluded to as GCM) is a versatile warning administration created by Google that empowers outsider application designers to send notice information or data from engineer run servers to applications that objective the Google Android Operating System, and also applications or augmentations produced for the Google Chrome web program. It is accessible to designers for nothing out of pocket. The GCM Service was first declared in June 2012 as a successor to Google's presently old Android Cloud to Device Messaging (C2DM) benefit, refering to enhancements to verification and conveyance, new API endpoints and messaging parameters, and the expulsion of impediments on API send-rates and message sizes. It has been supplanted by Google's Firebase Cloud Messaging (FCM).

CDN:-

A content delivery network or content dissemination network (CDN) is a topographically circulated network of intermediary servers and their server farms. The objective is to convey benefit spatially with respect to end-clients to give high accessibility and elite. CDNs serve a vast part of the Internet content today, including web objects (content, designs and contents), downloadable articles (media records, programming, reports), applications (web based business, gateways), live gushing media, on-request spilling media, and online networking destinations.

CDNs are a layer in the web biological system. Content proprietors, for example, media organizations and web based business sellers pay CDN administrators to convey their content to their end clients. Thus, a CDN pays ISPs, bearers, and network administrators for facilitating its servers in their server farms.