This is a small introduction to microservices. you can find the differences between microservices and monolithic applications. You will find the pros and cons of microservices. you will also find the challenges (Business/ technical) that you may face while implementing microservices.
The document provides an overview of microservices architecture including:
- Definitions and characteristics of microservices such as componentization via services, decentralized governance, and infrastructure automation.
- Common drivers for adopting microservices like agility, safety, and scalability.
- Guidelines for decomposing monolithic applications into microservices based on business capabilities and domain-driven design.
- Discussion of differences between microservices and service-oriented architecture (SOA).
- Ecosystem of tools involved in microservices including development frameworks, APIs, databases, containers, and service meshes.
- Common design patterns and anti-patterns when developing microservices.
The introduction covers the following
1. What are Microservices and why should be use this paradigm?
2. 12 factor apps and how Microservices make it easier to create them
3. Characteristics of Microservices
Note: Please download the slides to view animations.
This document provides an overview of microservices architecture, including concepts, characteristics, infrastructure patterns, and software design patterns relevant to microservices. It discusses when microservices should be used versus monolithic architectures, considerations for sizing microservices, and examples of pioneers in microservices implementation like Netflix and Spotify. The document also covers domain-driven design concepts like bounded context that are useful for decomposing monolithic applications into microservices.
Microservices architectures are changing the way that organizations build their applications and infrastructure. Companies can now achieve new levels of scale and efficiency by disaggregating their large, monolithic applications into small, independent “micro services”, each of which perform different functions. In this session, we’ll introduce the concept of microservices, help you evaluate whether your organization is ready for microservices, and discuss methods for implementing these architectures.
This document discusses serverless computing and AWS Lambda. It provides an overview of virtual machines, containers, and serverless/functions as a service. It describes how AWS Lambda works, including how to author functions using various programming languages. It also discusses how to integrate Lambda with other AWS services like API Gateway, Step Functions, S3, DynamoDB and more. It introduces the AWS Serverless Application Repository and AWS SAM for defining serverless applications.
This document provides an introduction to microservices architecture. It discusses why companies adopt the microservices style, how to design microservices, common patterns, and examples from Netflix.
The key points are:
1) Microservices architecture breaks applications into small, independent services that communicate over well-defined interfaces. This improves modularity, scalability, and allows independent deployments.
2) When designing microservices, services should be organized around business capabilities, have decentralized governance and data, and be designed to fail independently through patterns like circuit breakers.
3) Netflix is a leader in microservices and has open sourced many tools like Hystrix for latency handling and Eureka for service discovery that
SCS 4120 - Software Engineering IV
BACHELOR OF SCIENCE HONOURS IN COMPUTER SCIENCE
BACHELOR OF SCIENCE HONOURS IN SOFTWARE ENGINEERING
All in One Place Lecture Notes
Distribution Among Friends Only
All copyrights belong to their respective owners
Viraj Brian Wijesuriya
vbw@ucsc.cmb.ac.lk
1) Event-driven microservices involve microservices communicating primarily through events published to an event backbone. This loosely couples microservices and allows for eventual data consistency.
2) Apache Kafka is an open-source streaming platform that can be used to build an event backbone, allowing microservices to reliably publish and subscribe to events. It supports streaming, storage, and processing of event data.
3) Common patterns for event-driven microservices include database per service for independent data ownership, sagas for coordinated multi-step processes, event sourcing to capture all state changes, and CQRS to separate reads from writes.
- Microservices advocate creating a system from small, isolated services that each own their data and are independently scalable and resilient. They are inspired by biological cells that are small, single-purpose, and work together through messaging.
- The system is divided using a divide and conquer approach, decomposing it into discrete subsystems that communicate over well-defined protocols. Each microservice focuses on a single business capability and owns its own data and behavior.
- Microservices communicate asynchronously through APIs and events to maintain independence and isolation, which enables continuous delivery, failure resilience, and independent scaling of each service.
An Overview of Designing Microservices Based Applications on AWS - March 2017...
Microservices are an architectural approach to decompose complex applications into smaller, independent services. AWS customers benefit from increased agility, simplified scalability, resiliency, and faster deployments by migrating from monoliths to microservices based architecture.
In this session, we will provide an overview of the benefits and challenges of microservices, and share best practices for architecting and deploying microservices on AWS. We will dive into different approaches you can take to run microservices applications at scale and explore how services like Amazon ECS, AWS Lambda, and AWS X-Ray make it simpler to design and maintain these applications.
Learning Objectives:
1. Understand the fundamentals of the microservices architectural approach
2. Learn best practices for designing microservices on AWS
3. Learn the basics of Amazon EC2 Container Service, AWS Lambda, and AWS X-Ray
YouTube Link: https://youtu.be/xuH81XGWeGQ
** Microservices Architecture Training: https://www.edureka.co/microservices-... **
This Edureka's video on Microservices Design Patterns talks about the top design patterns you can use to build applications. In this video, you will learn the following:
1:29 Why do we need Design Patterns?
3:41 What are Design Patterns?
4:28 What are Microservices?
6:00 Principles behind Microservices
10:24 Microservices Design Patterns
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
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Castbox: https://castbox.fm/networks/505?country=in
API Gateways are the well suited service for microservices architecture. It provides many security and performance related features along with reliability of the system. These slides explains what is API Gateway. What is microservices architecture, its benefits and how API Gateway empower this architecture. Further more API Gateway aggregation is explained with an example.
Microservice Architecture | Microservices Tutorial for Beginners | Microservi...
( Microservices Architecture Training: https://www.edureka.co/microservices-... )
This Edureka's Microservices tutorial gives you detail of Microservices Architecture and how it is different from Monolithic Architecture. You will understand the concepts using a UBER case study. In this video, you will learn the following:
1. Monolithic Architecture
2. Challenges Of Monolithic Architecture
3. Microservice Architecture
4. Microservice Features
5. Compare architectures using UBER case-study
This is the video capture of the meetup described at https://www.meetup.com/lifemichael/events/287981390/ This video includes the two talks the meetup included. The first one is an introductory talk for the topic. The second one covers the SAGA design pattern.
Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. It allows developers to manage multiple versions and stages of APIs, monitor access by third party developers, and handle traffic spikes without operational burden. API Gateway supports features like throttling, authorization, caching of responses, and SDK generation to make APIs easy to consume.
The microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API.
In this slide we have discussed, Monolithic application vs Microservices, applicable scenarios for adopting the architectural pattern, when we need microservices, what are the benefits, case study of an e-commerce platform by compartmentalizing the scopes into different sample microservices and Docker implementations.
The full talk has been recorded here: https://youtu.be/tNlp7HS533g
This document discusses monolithic architecture and microservices architecture. It begins by defining monolithic architecture as having a single code base with multiple components/modules. It then lists advantages like being simple to develop, test, deploy and scale, as well as drawbacks like flexibility, maintenance, reliability, and scaling challenges.
Microservices architecture is presented as a solution to problems with monolithic architecture. Each microservice has a specific focus and functionality. Benefits include improved testability, loose coupling, and ability to develop, deploy and scale services independently. Challenges include increased complexity of developing, testing and operating distributed systems.
The document provides examples and discusses strategies for migrating a monolithic system to microservices, technologies
This document provides an overview of microservices and monolithic architectures. It discusses how monolithic applications are self-contained and execute end-to-end tasks, while microservices are small, independent services that communicate to perform tasks. The document outlines characteristics of each approach and compares their advantages and disadvantages, such as improved scalability, deployment and innovation with microservices versus better performance with monolithic architectures. Examples of companies using microservices are also provided.
Presentation created for Third and Final Year students of , The Department of Information Technology, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune. Collage has invited myself for a training program on “Recent Trends in Information Technology”. I presented on topic of "Serverless Microservices". It is Level-100 Session.
This presentation is conducted on 14th Sept in Limerick DotNet User Group.
(https://www.meetup.com/preview/Limerick-DotNet/events/xskpdnywmbsb)
SlideShare Url: https://www.slideshare.net/lalitkale/introduction-to-microservices-80583928
In this presentation, new architectural style - Microservices and it's emergence is discussed. We will also briefly touch base on what are not microservices, Conway's law and organization design, Principles of microservices and service discovery mechanism and why it is necessary for microservices implementation.
About Speaker:
Lalit is a senior developer, software architect and consultant with more than 12 yrsof .NET experience. He loves to work with C# .NET and Azure platform services like App Services, Virtual Machines, Cortana, and Container Services. He is also the author of 'Building Microservices with .NET Core' (https://www.packtpub.com/web-development/building-microservices-net-core) book.
To know more and connect with Lalit, you can visit his LinkedIn profile below. https://www.linkedin.com/in/lalitkale/
This presentation will be useful for software architects/Managers, senior developers.
Do share your feedback in comments.
This document summarizes an upcoming presentation on architecting microservices on AWS. The presentation will:
- Review microservices architecture and how it differs from monolithic and service-oriented architectures.
- Cover key microservices design principles like independent deployment of services that communicate via APIs and using the right tools for each job.
- Provide example design patterns for implementing microservices on AWS using services like EC2, ECS, Lambda, API Gateway and more.
- Include a demo of microservices on AWS.
- Conclude with a question and answer session.
The document provides an overview of microservices architecture including:
- Definitions and characteristics of microservices such as componentization via services, decentralized governance, and infrastructure automation.
- Common drivers for adopting microservices like agility, safety, and scalability.
- Guidelines for decomposing monolithic applications into microservices based on business capabilities and domain-driven design.
- Discussion of differences between microservices and service-oriented architecture (SOA).
- Ecosystem of tools involved in microservices including development frameworks, APIs, databases, containers, and service meshes.
- Common design patterns and anti-patterns when developing microservices.
The introduction covers the following
1. What are Microservices and why should be use this paradigm?
2. 12 factor apps and how Microservices make it easier to create them
3. Characteristics of Microservices
Note: Please download the slides to view animations.
This document provides an overview of microservices architecture, including concepts, characteristics, infrastructure patterns, and software design patterns relevant to microservices. It discusses when microservices should be used versus monolithic architectures, considerations for sizing microservices, and examples of pioneers in microservices implementation like Netflix and Spotify. The document also covers domain-driven design concepts like bounded context that are useful for decomposing monolithic applications into microservices.
Microservices architectures are changing the way that organizations build their applications and infrastructure. Companies can now achieve new levels of scale and efficiency by disaggregating their large, monolithic applications into small, independent “micro services”, each of which perform different functions. In this session, we’ll introduce the concept of microservices, help you evaluate whether your organization is ready for microservices, and discuss methods for implementing these architectures.
This document discusses serverless computing and AWS Lambda. It provides an overview of virtual machines, containers, and serverless/functions as a service. It describes how AWS Lambda works, including how to author functions using various programming languages. It also discusses how to integrate Lambda with other AWS services like API Gateway, Step Functions, S3, DynamoDB and more. It introduces the AWS Serverless Application Repository and AWS SAM for defining serverless applications.
This document provides an introduction to microservices architecture. It discusses why companies adopt the microservices style, how to design microservices, common patterns, and examples from Netflix.
The key points are:
1) Microservices architecture breaks applications into small, independent services that communicate over well-defined interfaces. This improves modularity, scalability, and allows independent deployments.
2) When designing microservices, services should be organized around business capabilities, have decentralized governance and data, and be designed to fail independently through patterns like circuit breakers.
3) Netflix is a leader in microservices and has open sourced many tools like Hystrix for latency handling and Eureka for service discovery that
SCS 4120 - Software Engineering IV
BACHELOR OF SCIENCE HONOURS IN COMPUTER SCIENCE
BACHELOR OF SCIENCE HONOURS IN SOFTWARE ENGINEERING
All in One Place Lecture Notes
Distribution Among Friends Only
All copyrights belong to their respective owners
Viraj Brian Wijesuriya
vbw@ucsc.cmb.ac.lk
1) Event-driven microservices involve microservices communicating primarily through events published to an event backbone. This loosely couples microservices and allows for eventual data consistency.
2) Apache Kafka is an open-source streaming platform that can be used to build an event backbone, allowing microservices to reliably publish and subscribe to events. It supports streaming, storage, and processing of event data.
3) Common patterns for event-driven microservices include database per service for independent data ownership, sagas for coordinated multi-step processes, event sourcing to capture all state changes, and CQRS to separate reads from writes.
- Microservices advocate creating a system from small, isolated services that each own their data and are independently scalable and resilient. They are inspired by biological cells that are small, single-purpose, and work together through messaging.
- The system is divided using a divide and conquer approach, decomposing it into discrete subsystems that communicate over well-defined protocols. Each microservice focuses on a single business capability and owns its own data and behavior.
- Microservices communicate asynchronously through APIs and events to maintain independence and isolation, which enables continuous delivery, failure resilience, and independent scaling of each service.
An Overview of Designing Microservices Based Applications on AWS - March 2017...Amazon Web Services
Microservices are an architectural approach to decompose complex applications into smaller, independent services. AWS customers benefit from increased agility, simplified scalability, resiliency, and faster deployments by migrating from monoliths to microservices based architecture.
In this session, we will provide an overview of the benefits and challenges of microservices, and share best practices for architecting and deploying microservices on AWS. We will dive into different approaches you can take to run microservices applications at scale and explore how services like Amazon ECS, AWS Lambda, and AWS X-Ray make it simpler to design and maintain these applications.
Learning Objectives:
1. Understand the fundamentals of the microservices architectural approach
2. Learn best practices for designing microservices on AWS
3. Learn the basics of Amazon EC2 Container Service, AWS Lambda, and AWS X-Ray
YouTube Link: https://youtu.be/xuH81XGWeGQ
** Microservices Architecture Training: https://www.edureka.co/microservices-... **
This Edureka's video on Microservices Design Patterns talks about the top design patterns you can use to build applications. In this video, you will learn the following:
1:29 Why do we need Design Patterns?
3:41 What are Design Patterns?
4:28 What are Microservices?
6:00 Principles behind Microservices
10:24 Microservices Design Patterns
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
Castbox: https://castbox.fm/networks/505?country=in
API Gateways are the well suited service for microservices architecture. It provides many security and performance related features along with reliability of the system. These slides explains what is API Gateway. What is microservices architecture, its benefits and how API Gateway empower this architecture. Further more API Gateway aggregation is explained with an example.
Microservice Architecture | Microservices Tutorial for Beginners | Microservi...Edureka!
( Microservices Architecture Training: https://www.edureka.co/microservices-... )
This Edureka's Microservices tutorial gives you detail of Microservices Architecture and how it is different from Monolithic Architecture. You will understand the concepts using a UBER case study. In this video, you will learn the following:
1. Monolithic Architecture
2. Challenges Of Monolithic Architecture
3. Microservice Architecture
4. Microservice Features
5. Compare architectures using UBER case-study
This is the video capture of the meetup described at https://www.meetup.com/lifemichael/events/287981390/ This video includes the two talks the meetup included. The first one is an introductory talk for the topic. The second one covers the SAGA design pattern.
Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. It allows developers to manage multiple versions and stages of APIs, monitor access by third party developers, and handle traffic spikes without operational burden. API Gateway supports features like throttling, authorization, caching of responses, and SDK generation to make APIs easy to consume.
The microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API.
In this slide we have discussed, Monolithic application vs Microservices, applicable scenarios for adopting the architectural pattern, when we need microservices, what are the benefits, case study of an e-commerce platform by compartmentalizing the scopes into different sample microservices and Docker implementations.
The full talk has been recorded here: https://youtu.be/tNlp7HS533g
The Overview of Microservices ArchitectureParia Heidari
This document discusses monolithic architecture and microservices architecture. It begins by defining monolithic architecture as having a single code base with multiple components/modules. It then lists advantages like being simple to develop, test, deploy and scale, as well as drawbacks like flexibility, maintenance, reliability, and scaling challenges.
Microservices architecture is presented as a solution to problems with monolithic architecture. Each microservice has a specific focus and functionality. Benefits include improved testability, loose coupling, and ability to develop, deploy and scale services independently. Challenges include increased complexity of developing, testing and operating distributed systems.
The document provides examples and discusses strategies for migrating a monolithic system to microservices, technologies
This document provides an overview of microservices and monolithic architectures. It discusses how monolithic applications are self-contained and execute end-to-end tasks, while microservices are small, independent services that communicate to perform tasks. The document outlines characteristics of each approach and compares their advantages and disadvantages, such as improved scalability, deployment and innovation with microservices versus better performance with monolithic architectures. Examples of companies using microservices are also provided.
Presentation created for Third and Final Year students of , The Department of Information Technology, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune. Collage has invited myself for a training program on “Recent Trends in Information Technology”. I presented on topic of "Serverless Microservices". It is Level-100 Session.
These are my summarized notes from all the microservices session I attended at QCon 2015. These sessions had tons of learning around how to scale microservices and avoid common pitfalls
Microservices - opportunities, dilemmas and problemsŁukasz Sowa
Presentation from Warsjawa 2014 workshop "Microservices in Scala". Topics covered:
- What are microservices?
- What's the difference between them vs monolithic
architectures?
- What are the different flavours of microservices?
The document discusses transitioning from a monolithic architecture to microservices architecture for an IoT cloud platform. Some key points include:
- The goals of enabling scalability, supporting new markets, and innovation.
- Moving to a microservices architecture can help with scalability, fault tolerance, and independent deployability compared to a monolith.
- Organizational structure should also transition from function-based to product-based to align with the architecture.
- Technical considerations in building microservices include service interfaces, data management, fault tolerance, and DevOps practices.
Tokyo Azure Meetup #5 - Microservices and Azure Service FabricTokyo Azure Meetup
Azure Service Fabric is now Generally Available!
In this meetup we will start from the beginning and define what is microservice.
Next we will have a deep dive in Azure Service Fabric. Azure Service Fabric is one of the most interesting Azure service. Used internally in Microsoft for 5 years and backing up one of the most demanding Azure services today such as Azure SQL, Document DB, Cortana and Skype for Business.
We will be talking about the two models that are supported by Azure Service Fabric:
- Reliable Services (We will explore the reasons for having both stateful and stateless offerings in this model)
- Reliable Actors
Then we will talk how you can create Azure Service Fabric cluster on premise or in another cloud.
We will demo deployments in Azure for the various models.
Azure Service Fabric is the most advanced and complete offering for developing and hosting microservices in Azure. It builds on years experience Microsoft acquired running one of the most demanding services such as Azure SQL. Moreover, Azure Service Fabric solves very difficult distributed computing problems such as data synchronization, zero downtime deployment, update and rollback operations at large scale.
Join us to learn more about Azure Service Fabric and start using it immediately after the meetup!
This document discusses when a service mesh may be needed and provides an overview of the current service mesh landscape. It begins with why microservices are adopted and the challenges of operating distributed applications. It then describes a maturity journey where a service mesh is not initially needed but may become useful for applications that become more complex, distributed, and interdependent. The document outlines some current major service mesh implementations and notes that the technology is still new and changing rapidly. It recommends investigating service meshes through proof of concepts but cautions that production usage requires significant resources. It profiles F5 Aspen Mesh and NGINX solutions for service meshes and microservices.
Comparing and contrasting monolithic systems to Lego pieces (microservices) at the 50,000 foot view. In this presentation we will compare and contrast monolithic systems to microservices. We will then take a look at some of the down sides to microservices. And then we will discuss some strategies for building microservices.
This document provides an overview of microservice architecture, including its key characteristics, benefits, problems, and solutions. Microservices are small, independent services that are organized around business capabilities. They communicate through APIs and can be developed and deployed independently. Benefits include scalability, flexibility, and ease of development and testing. Challenges include configuring and monitoring distributed services. Common solutions involve service discovery, load balancing, centralized logging/monitoring, and externalizing configuration. The document also discusses architectural patterns, anti-patterns, and references further resources on microservices.
The document discusses microservices and provides information on:
- The benefits of microservices including faster time to market, lower deployment costs, and more revenue opportunities.
- What defines a microservice such as being independently deployable and scalable.
- Differences between monolithic and microservice architectures.
- Moving applications to the cloud and refactoring monolithic applications into microservices.
- Tools for building microservices including Azure Service Fabric and serverless/Functions.
- Best practices for developing, deploying, and managing microservices.
Comparing Service-Oriented Architecture (SOA), Microservices and Service-Based Architecture (SBA - SOA and Microservices Hybrid) patterns.
Also discussing coupling and cohesion concepts in relation to the systems design.
Exploring microservices in a Microsoft landscapeAlex Thissen
Presentation for Dutch Microsoft TechDays 2015 with Marcel de Vries:
During this session we will take a look at how to realize a Microservices architecture (MSA) using the latest Microsoft technologies available. We will discuss some fundamental theories behind MSA and show you how this can actually be realized with Microsoft technologies such as Azure Service Fabric. This session is a real must-see for any developer that wants to stay ahead of the curve in modern architectures.
Alex Thissen (Xpirit) - Een verschuiving in architectuur: op weg naar microse...AFAS Software
This document discusses microservices architecture as a modern approach to application development. It begins by outlining some of the challenges with monolithic architectures and how microservices address needs for scalability, agility, availability and efficiency. Key characteristics of microservices are that they are independently deployable, use lightweight protocols for communication, and are organized around business capabilities rather than technical boundaries. The document provides examples of how to decompose a monolithic application into microservices and discusses considerations for designing services, service communication, and hosting microservices using containers and orchestration platforms.
MicroserviceArchitecture in detail over Monolith.PLovababu
This document discusses microservices architecture as an alternative to monolithic architecture. It defines microservices as independently deployable services that communicate through lightweight mechanisms like HTTP APIs. The document outlines benefits of microservices like independent scalability, easier upgrades, and improved developer productivity. It also discusses prerequisites for microservices like rapid provisioning, monitoring, and continuous deployment. Examples of microservices frameworks and a demo application using Spring Boot are provided.
The document discusses microservice architecture and compares it to monolithic architecture. It describes microservices as small, discrete, isolated services that can be deployed separately. A monolith is a single application combining all business logic and data access. The document outlines characteristics of microservices such as single responsibility, statelessness, independent data management and communication through APIs or message queues. It also covers deployment, testing, monitoring, metrics and the need for automation and a culture open to change when using microservice architecture.
Microservices involve breaking up monolithic applications into smaller, independent services that work together. This allows for increased efficiency through scaling individual services as needed, easier updates by updating smaller code bases, and improved stability if one service fails. Containers are well-suited for microservices due to their lightweight nature and ability to easily move workloads.
NBFC Software: Optimize Your Non-Banking Financial CompanyNBFC Softwares
NBFC Software: Optimize Your Non-Banking Financial Company
Enhance Your Financial Services with Comprehensive NBFC Software
NBFC software provides a complete solution for non-banking financial companies, streamlining banking and accounting functions to reduce operational costs. Our software is designed to meet the diverse needs of NBFCs, including investment banks, insurance companies, and hedge funds.
Key Features of NBFC Software:
Centralized Database: Facilitates inter-branch collaboration and smooth operations with a unified platform.
Automation: Simplifies loan lifecycle management and account maintenance, ensuring efficient delivery of financial services.
Customization: Highly customizable to fit specific business needs, offering flexibility in managing various loan types such as home loans, mortgage loans, personal loans, and more.
Security: Ensures safe and secure handling of financial transactions and sensitive data.
User-Friendly Interface: Designed to be intuitive and easy to use, reducing the learning curve for employees.
Cost-Effective: Reduces the need for additional manpower by automating tasks, making it a budget-friendly solution. Benefits of NBFC Software:
Go Paperless: Transition to a fully digital operation, eliminating offline work.
Transparency: Enables managers and executives to monitor various points of the banking process easily.
Defaulter Tracking: Helps track loan defaulters, maintaining a healthy loan management system.
Increased Accessibility: Cutting-edge technology increases the accessibility and usability of NBFC operations. Request a Demo Now!
Efficient hot work permit software for safe, streamlined work permit management and compliance. Enhance safety today. Contact us on +353 214536034.
https://sheqnetwork.com/work-permit/
Software development... for all? (keynote at ICSOFT'2024)miso_uam
Our world runs on software. It governs all major aspects of our life. It is an enabler for research and innovation, and is critical for business competitivity. Traditional software engineering techniques have achieved high effectiveness, but still may fall short on delivering software at the accelerated pace and with the increasing quality that future scenarios will require.
To attack this issue, some software paradigms raise the automation of software development via higher levels of abstraction through domain-specific languages (e.g., in model-driven engineering) and empowering non-professional developers with the possibility to build their own software (e.g., in low-code development approaches). In a software-demanding world, this is an attractive possibility, and perhaps -- paraphrasing Andy Warhol -- "in the future, everyone will be a developer for 15 minutes". However, to make this possible, methods are required to tweak languages to their context of use (crucial given the diversity of backgrounds and purposes), and the assistance to developers throughout the development process (especially critical for non-professionals).
In this keynote talk at ICSOFT'2024 I presented enabling techniques for this vision, supporting the creation of families of domain-specific languages, their adaptation to the usage context; and the augmentation of low-code environments with assistants and recommender systems to guide developers (professional or not) in the development process.
React and Next.js are complementary tools in web development. React, a JavaScript library, specializes in building user interfaces with its component-based architecture and efficient state management. Next.js extends React by providing server-side rendering, routing, and other utilities, making it ideal for building SEO-friendly, high-performance web applications.
Cultural Shifts: Embracing DevOps for Organizational TransformationMindfire Solution
Mindfire Solutions specializes in DevOps services, facilitating digital transformation through streamlined software development and operational efficiency. Their expertise enhances collaboration, accelerates delivery cycles, and ensures scalability using cloud-native technologies. Mindfire Solutions empowers businesses to innovate rapidly and maintain competitive advantage in dynamic market landscapes.
CViewSurvey Digitech Pvt Ltd that works on a proven C.A.A.G. model.bhatinidhi2001
CViewSurvey is a SaaS-based Web & Mobile application that provides digital transformation to traditional paper surveys and feedback for customer & employee experience, field & market research that helps you evaluate your customer's as well as employee's loyalty.
With our unique C.A.A.G. Collect, Analysis, Act & Grow approach; business & industry’s can create customized surveys on web, publish on app to collect unlimited response & review AI backed real-time data analytics on mobile & tablets anytime, anywhere. Data collected when offline is securely stored in the device, which syncs to the cloud server when connected to any network.
Explore the rapid development journey of TryBoxLang, completed in just 48 hours. This session delves into the innovative process behind creating TryBoxLang, a platform designed to showcase the capabilities of BoxLang by Ortus Solutions. Discover the challenges, strategies, and outcomes of this accelerated development effort, highlighting how TryBoxLang provides a practical introduction to BoxLang's features and benefits.
WhatsApp Tracker - Tracking WhatsApp to Boost Online Safety.pdfonemonitarsoftware
WhatsApp Tracker Software is an effective tool for remotely tracking the target’s WhatsApp activities. It allows users to monitor their loved one’s online behavior to ensure appropriate interactions for responsive device use.
Download this PPTX file and share this information to others.
COMPSAC 2024 D&I Panel: Charting a Course for Equity: Strategies for Overcomi...Hironori Washizaki
Hironori Washizaki, "Charting a Course for Equity: Strategies for Overcoming Challenges and Promoting Inclusion in the Metaverse", IEEE COMPSAC 2024 D&I Panel, 2024.
A Comparative Analysis of Functional and Non-Functional Testing.pdfkalichargn70th171
A robust software testing strategy encompassing functional and non-functional testing is fundamental for development teams. These twin pillars are essential for ensuring the success of your applications. But why are they so critical?
Functional testing rigorously examines the application's processes against predefined requirements, ensuring they align seamlessly. Conversely, non-functional testing evaluates performance and reliability under load, enhancing the end-user experience.
What is OCR Technology and How to Extract Text from Any Image for FreeTwisterTools
Discover the fascinating world of Optical Character Recognition (OCR) technology with our comprehensive presentation. Learn how OCR converts various types of documents, such as scanned paper documents, PDFs, or images captured by a digital camera, into editable and searchable data. Dive into the history, modern applications, and future trends of OCR technology. Get step-by-step instructions on how to extract text from any image online for free using a simple tool, along with best practices for OCR image preparation. Ideal for professionals, students, and tech enthusiasts looking to harness the power of OCR.
2. Software life cycle
2 16 May 2019
Gathering requirements.
The goal of analysis is to determine where the problem is, in an attempt to fix the system.
Plan sprint to meet requirements in given time. Operations are described in detail including
business rules, process diagrams, etc. The output of this stage will describe the new
system as a collection of modules or subsystems.
The real code is written here.
All the pieces are brought together into a special testing environment, then checked for
errors, bugs, and interoperability.
Putting a release into production
Doing health checks
Checking time for requests and responses …
Plan & design
Development
Testing
Analysis
Release
Monitor
3. What is a Microservice?
• “The microservice architectural style is an approach to develop single application as a suite of small services,
each running in its own process & communication with light weight mechanism.” . James Lewis & Martin
Fowler.
• “Microservices are SMALL & AUTONOMUS services that work together”. Book - Building Microservices, Sam
Neuman.
• There is no specific technology used to build MS.
• Some Principles and architectural patterns are used to build MS.
3 16 May 2019
4. Microservice overview
Micro
• Big/small, who decide ?
• Is it the number of lines in code ?
• Is it the number of developers in
team?
• There is no universal measure . One
microservice should do ONE THING
& do it well.
• It is micro because of the scope of
functionality not line of code.
• Subdomains should be identified to
know the scope of functionality.
• Bounded context
• Should be built around business
capability
5. Microservice overview
Service
• It is an independently deployed component for bounded context.
• Interoperability.
• Uses message based communication.
• Independent from technologies.
• Simply it is SOA
6. Monolithic application
Simply a monolithic application consists of
• Model
• Single database
• User interface
• APIs can be exposed for third parties
• You can have more than one instance running behind load balancer
8. Monolithic application
Pros
• Simple to build
• Simple to test
• Simple to deploy
• Simple to scale
• Multiple instances
• Simple to develop
• Limited to one language.
Cons
• The bigger the app, the bigger the team.
• New team members productivity is low.
• Code harder to understand & modify.
• Not updated with new technologies.
• Startup of app will take long time.
• Scale for bad reasons
• Need more CPU for calculating invoices, you will
scale the whole app.
9. Monolithic application
• Taking monolithic app and dividing it to smaller services will lead to:
• Concentrating on something smaller
• Software life cycle is still the same, but moves faster.
• Smaller teams
• Small services will live side by side.
10. Moving to Microservice
• Microservice should be “Domain Driven Design”.
• Taking the monolith application and moving to domain driven design
• Domain:
• E-commerce
• Sub-domains:
• User: Auth, profile, address,…
• Order: invoices, discount,…
• Product: Prodcuts, suppliers,…
• Dependencies:
• Sub domians should be totally independent. If you find any dependencies duplicating entities is
required.
12. Moving to Microservice
• Organization
• Teams will be divided by subdomain not domain
• Right sized team for each subdomain
• Each team will be solely responsible for their final product
• Each team should be independent, but the communication between them should be
handled by management
• Each team should have their own repo.
13. Moving to Microservice
• Data store
• Each MS should have its own database
• Example:
• Product: relational database
• Order: NoSQL
• User: LDAP
• Problem ?!
• If user changes his address it should be replicated in the entity found in order sub-domain.
• In MS world there is no distributed transaction [ in same transaction you update more than 1 table in
different databases] due to performance issures
• Therefore, data is not immediately consistent.
14. Moving to Microservice
• Data store
• Solution for data sync is using change data capture or event sourcing pattern.
• Both are ways of modeling data, especially at scale, using a combination of a mutable database.
• Service publishes event when data changes and other services will consume the event and
update data.
• Kafka can be used for keeping data in sync
• UI
• Composition pattern can be used to be consistent
• Client side
• Server side
15. Moving to Microservice
• Services
• Communication
• Remote Procedure Invocation/call (RPC):
User Order Product
• Request / reply principle (purchase request product price)
• Can be sync/async
• REST or SOAP can be used
16. Moving to Microservice
• Services
• Communication
• Messaging:
• Message or events
• On broker or channel
• MS can publish an event & the MS who is in need can subscribe to broker & receive the message at a later
time
• Kafka can be used also.
User ProductOrder
Broker
17. Moving to Microservice
• Services
• Communication
• Using any of the two methods you need protocol format exchange
• Text (JSON, XML,…) readable and easy to implement
• Binary (gRPC) more compact
• MSs need contracts to know the APIs of other MSs.
• Example: WSDLs & Swagger files.
18. Moving to Microservice
• Distributed services
• MSs are deployed where there network locations are changed dynamically.
QUESTION?
How can MSs communicate with each other when there locations are changed
dynamically ?
ANSWER
Service registery
19. Moving to Microservice
• Distributed services
• Service registry
• It is a phonebook of services
• MSs should register them selves on startup and at shutdown
• You can lookup by their logical names
• Product: 127.0.0.1:8080
• Eureca can be used for this
20. Moving to Microservice
• Distributed services
• Best way for FE to call MS is putting an API gateway
Front end
user Order Product
API Gateway
21. Moving to Microservice
• Distributed services
• Best way for FE to call MS is putting an API gateway
• Unified interface
• Can control the cross cutting functionalities (Authentication, Authorization, register, …)
• API translation
22. Moving to Microservice
• Security
• Use identity and access mangement for authentication and authorization.
• Once signed in Access-token can be used to move from one MS to another
• Scalability
• You can scale one MS or more.
• Scaling can be:
• Vertical:
• adding more power to existing machine (more CPU/RAM …)
• Horizontal:
• replicate more machines. i.e. several instances
• Client load balancing will choose from registry. (using round robin for example)
Product1: x.y.z:80
Product2: a.b.c:81
23. Moving to Microservice
• Availability
• Minutes is up and operational
• We have in this architecture some single point of failures
• Broker
• API Gateway
• Registry
• ALL POF should be scaled horizontally (multiple instances) & clustered to be in sync
24. Moving to Microservice
• Monitoring
• Should be centralized
• Use log aggregation (Log stash can be used)
• Should be visual in dashboard (Splunk/ Kibana can be used)
• Health check
• Service running. Cant handle requests. Should show database status, available space,…
• Record exceptions in tracker system cyntralized
• Gather statistics (DropWizard can be used)
• Limit traffic to defend DOS attachks
• A coorelation id (transaction_id) for the journey of the request (dapper can be used)
25. Moving to Microservice
• Deployment
• Can be on physical or virtual servers (still physical but can control CPU/RAM)
• MS should be packaged with its dependencies in container image & deployed as a
container
• Images can be easily moved from one environment to another. ( Docker to be used)
• Kubernetes is used to orchestrate the contianers
• Jenkins is used for continuous delivery
• There should be an external configuration for diff environments
• Putting debug mode in dev environment only
• Activating new functionality through configuration
26. Challenges
• Business concerns
• Integration between teams is difficult
• Many trainings need to be done as different dev. Stacks
• There is no standard in MS.
• Solution will rely on some standards (HTTP,SQL,..) but not standard stack.
• There is no single framework, but there is an integration of different technologies
• No single support
• Cost
• Small team
• Cheap start, cheap deployments on cloud
• Time
• Faster to market.
27. Challenges
• Technical concerns
• Design
• How to partition the system to services (invoices could’ve been services)
• How small !?
• Technical diversity
• Choose programming language
• Right database
• Distribution
• Communication over network
• How to deal with network failures (circuit breaker)
• Data store
• Database per subdomain
• Keep data in sync
• Security
• Access token renewal
28. Challenges
• Technical concerns
• Testing
• Less code will be tested
• Test in isolation
• Integration testing is hard
• Maintenance
• Less code to maintain
• Less code to understand
• Extensibility
• New feature, new MS
29. When to use MS ?
Time to market Extensibility
Replicability Scalability