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An Nginx architect argued that the relevance of the Twelve-Factor app concept is somewhat specific to Heroku, while introducing their own (Nginx's) proposed architecture for microservices. [3] The twelve factors are however cited as a baseline from which to adapt or extend.
It is common for microservices architectures to be adopted for cloud-native applications, serverless computing, and applications using lightweight container deployment. . According to Fowler, because of the large number (when compared to monolithic application implementations) of services, decentralized continuous delivery and DevOps with holistic service monitoring are necessary to ...
[5] Different services can be used in conjunction as a service mesh to provide the functionality of a large software application, [6] a principle SOA shares with modular programming. Service-oriented architecture integrates distributed, separately maintained and deployed software components.
[2] [11] A growing body of research in service availability is accelerating the development of OpenSAF features supporting mission-critical cloud and microservices deployments, and service orchestration. [12] [13] OpenSAF 1.0 was released January 22, 2008. It comprised the NetPlane Core Service (NCS) codebase contributed by Motorola ECC. [14]
Microservices are often used when architecting for continuous delivery. [12] The use of Microservices can increase a software system's deployability and modifiability. The observed deployability improvements include: deployment independence, shorter deployment time, simpler deployment procedures, and zero downtime deployment.
In an environment in which data-centric microservices provide the functionality, and where the microservices can have multiple instances, continuous deployment consists of instantiating the new version of a microservice and retiring the old version once it has drained all the requests in flight. [7] [8] [9]
Software modernization [12] is a risky, difficult, long, and highly intellectual process involving multiple stakeholders. The software modernization tasks are supported by various tools related to Model-driven architecture from the Object Management Group and processes such as ISO/IEC 14764:2006 or Service-Oriented Migration and Reuse Technique ...
The WSRP specification defines a web service interface for interacting with presentation-oriented web services. Initial work was produced through the joint efforts of the Web Services for Interactive Applications (WSIA) and Web Services for Remote Portlets (WSRP) OASIS Technical Committees.