Intro to Azure Api Management - With CatsXamariners
This document provides an introduction to API management. It defines an API as a set of requirements that enables one application to communicate with another. A Web API is specified as using HTTP/HTTPS, being RESTful, and using JSON or XML. API management platforms provide services like authentication, analytics, policy enforcement, and developer engagement. They allow organizations to publish and manage APIs to external developers. The document discusses how APIs have enabled companies like Uber and Airbnb to build large businesses without direct ownership of core assets. It presents Azure API Management as an example of an API management platform and demonstrates its capabilities like provisioning, analytics, testing, policies, and security features.
This document summarizes the Enterprise Integration Patterns including definitions of integration styles, messaging channels, endpoints, message routing patterns like content-based router and aggregator, and message transformation patterns like message translator and content enricher. It provides examples of these patterns in an application called Nova.
The document discusses the use of event-driven architecture (EDA) across several industries. It provides examples of how EDA is used in digital manufacturing, financial services, gaming/gambling, retail, and government. Some common technical problems addressed by EDA include large connection counts, processing data streams, ensuring zero message loss, and meeting latency requirements. The document also provides a brief quiz asking what EDA is.
Spring can integrate with WebSockets to enable asynchronous data exchange between a client and server. This overcomes limitations of synchronous HTTP. WebSockets provide a persistent connection and low overhead compared to alternatives like polling. Spring supports WebSocket through STOMP, a messaging subprotocol. It allows configuration of WebSocket endpoints in Spring MVC. However, the internal Spring architecture is not optimal if an external message broker is involved rather than using Spring's embedded broker.
SDWAN Concept - Certificate and keys Roles in Controllers and vEdge Router Au...Farooq Khan
WAN edge routers and controllers in a Cisco SD-WAN solution mutually authenticate using an authorized list model and certificates. Controllers and routers verify each other's identities by validating certificates signed by a certificate authority against the locally stored root certificate, comparing organizational names, and checking serial numbers against the authorized list. This establishes a secure DTLS/TLS tunnel between authenticated devices for network traffic forwarding.
Communication in a Microservice ArchitecturePer Bernhardt
There are many different approaches to how you let your microservices communicate between one another. Be it asynchronous or synchronous, choreographed or orchestrated, eventual consistent or distributedly transactional, fault tolerant or just a mess! In this session I will provide an overview on different concepts of microservice communication and their pros & cons. On the way I'll try to throw in some anecdotes, success stories and failures I learned from so that you can hopefully take something home with you.
The document discusses NS3's implementation of WiFi networking. It provides an overview of the WiFiNetDevice and WifiPhy models, and describes the modular implementation including the MAC high, low, and physical layers. It explains concepts like the DcfManager, DcaTxop, rate control algorithms, and provides examples of modifying the WiFi model and using trace sources.
Intro to Azure Api Management - With CatsXamariners
This document provides an introduction to API management. It defines an API as a set of requirements that enables one application to communicate with another. A Web API is specified as using HTTP/HTTPS, being RESTful, and using JSON or XML. API management platforms provide services like authentication, analytics, policy enforcement, and developer engagement. They allow organizations to publish and manage APIs to external developers. The document discusses how APIs have enabled companies like Uber and Airbnb to build large businesses without direct ownership of core assets. It presents Azure API Management as an example of an API management platform and demonstrates its capabilities like provisioning, analytics, testing, policies, and security features.
This document summarizes the Enterprise Integration Patterns including definitions of integration styles, messaging channels, endpoints, message routing patterns like content-based router and aggregator, and message transformation patterns like message translator and content enricher. It provides examples of these patterns in an application called Nova.
The document discusses the use of event-driven architecture (EDA) across several industries. It provides examples of how EDA is used in digital manufacturing, financial services, gaming/gambling, retail, and government. Some common technical problems addressed by EDA include large connection counts, processing data streams, ensuring zero message loss, and meeting latency requirements. The document also provides a brief quiz asking what EDA is.
Spring can integrate with WebSockets to enable asynchronous data exchange between a client and server. This overcomes limitations of synchronous HTTP. WebSockets provide a persistent connection and low overhead compared to alternatives like polling. Spring supports WebSocket through STOMP, a messaging subprotocol. It allows configuration of WebSocket endpoints in Spring MVC. However, the internal Spring architecture is not optimal if an external message broker is involved rather than using Spring's embedded broker.
SDWAN Concept - Certificate and keys Roles in Controllers and vEdge Router Au...Farooq Khan
WAN edge routers and controllers in a Cisco SD-WAN solution mutually authenticate using an authorized list model and certificates. Controllers and routers verify each other's identities by validating certificates signed by a certificate authority against the locally stored root certificate, comparing organizational names, and checking serial numbers against the authorized list. This establishes a secure DTLS/TLS tunnel between authenticated devices for network traffic forwarding.
Communication in a Microservice ArchitecturePer Bernhardt
There are many different approaches to how you let your microservices communicate between one another. Be it asynchronous or synchronous, choreographed or orchestrated, eventual consistent or distributedly transactional, fault tolerant or just a mess! In this session I will provide an overview on different concepts of microservice communication and their pros & cons. On the way I'll try to throw in some anecdotes, success stories and failures I learned from so that you can hopefully take something home with you.
The document discusses NS3's implementation of WiFi networking. It provides an overview of the WiFiNetDevice and WifiPhy models, and describes the modular implementation including the MAC high, low, and physical layers. It explains concepts like the DcfManager, DcaTxop, rate control algorithms, and provides examples of modifying the WiFi model and using trace sources.
Intro to Project Calico: a pure layer 3 approach to scale-out networkingPacket
Slide presentation from the April 16th, 2015 Downtown NY Tech Meetup hosted at Control Group and presented by Christopher Liljenstolpe from Project Calico (www.projectcalico.org)
Project Calico is a scale-out networking fabric for bare metal, container, VM, and hybrid environments. Project Calico leverages the same networking techniques used to scale out the Internet to present a highly scaleable, L3 network for those environments without the use of tunnels, overlays, or other complex constructs. We'll also do a demo of a Calico enabled Docker environment, and have plenty of time for q&a during and after.
About Christopher Liljenstolpe
Christopher is the original architect of Project Calico and one of the project's evangelists. In his day job, he's the director of solutions architecture at Metaswitch Networks. Prior to Calico/Metaswitch, he's designed and run some bio-informatics OpenStack clusters, done some SDN architecture work at Big Switch Networks, Run architecture at two large carriers (Telstra - AS1221, and Cable & Wireless/iMCI - AS3561) and been the IP CTO for Alcatel in Asia. He's also run networks in Antarctica (hint, bend radius becomes REALLY important at -50C), and been foolish enough to do a stint as a wg co-chair in the IETF. Occasionally you can have the (mis-)fortune of hearing him speak at conferences and the like.
Secure Kafka at scale in true multi-tenant environment ( Vishnu Balusu & Asho...confluent
Application teams in JPMC have started shifting towards building event driven architectures and real time steaming pipelines and Kafka has been at core in this journey. As application teams have started adopting Kafka rapidly, need for a centrally managed Kafka as a service has emerged. We have started delivering Kafka as a service in early 2018 and running in production for more than an year now operating 80+ clusters (and growing) in all environments together. One of the key requirements is to provide truly segregated, secured multi-tenant environment with RBAC model while satisfying financial regulations and controls at the same time. Operating clusters at large scale requires scalable self-service capabilities and cluster management orchestration. In this talk we will present - Our experiences in delivering and operating secured, multi-tenant and resilient Kafka clusters at scale. - Internals of our service framework/control plane which enables self-service capabilities for application teams, cluster build/patch orchestration and capacity management capabilities for TSE/admin teams. - Our approach in enabling automated Cross Datacenter failover for application teams using service framework and confluent replicator.
This is the Part 1 of the Azure Active Directory Topic. In this session I introduce the Azure AD and talk about what it is, how it differentiates with on-premises Active Directory Domain Services (AD DS). Further, in this session I provide demos on how to create Azure AD Users from the Azure Portal, associate Custom domains with the Azure AD tenant and the Azure AD PowerShell module. As a bonus, I also talk about and demo how to create additional Azure AD directory within the subscription.
To view recording of this webinar please use below URL:
http://wso2.com/library/webinars/2015/09/event-driven-architecture/
Enterprise systems today are moving towards being dynamic where change has become the norm rather than the exception. Such systems need to be loosely coupled, autonomous, versatile and adaptive. There arises the need to model such systems, and event driven architecture (EDA) is how such systems can be modelled and explained.
This webinar will discuss
The basics of EDA
How it can benefit your enterprise
How the WSO2 product stack complements this architectural pattern
Deploying CloudStack and Ceph with flexible VXLAN and BGP networking ShapeBlue
1) The document discusses using VXLAN, BGP and EVPN to implement a layer 3 network for a cloud deployment using Ceph and CloudStack. This allows scaling beyond the limits of layer 2 networks and VLANs.
2) Key infrastructure components discussed include Dell S5232F-ON switches running Cumulus Linux, SuperMicro hypervisors and Ceph storage servers using NVMe SSDs.
3) The deployment provides high performance private and public cloud infrastructure with scalable networking and over 650TB of reliable Ceph storage per rack.
As your service footprint grows, adding traffic control capabilities beyond stock solutions like kube-proxy becomes critical. Envoy provides fine grained routing control, load shedding, and metrics that help you scale your environment smoothly. We'll walk through several traffic control strategies using Envoy.
This document summarizes a presentation on hybrid cloud solutions given at the AWS Government, Education, and Nonprofit Symposium on June 25-26, 2015 in Washington DC. The presentation discusses how cloud computing represents a paradigm shift in IT, the growth of cloud adoption and trends like hybrid models. It outlines different hybrid architectures including performance optimization, control, and backup/disaster recovery. Common cloud use cases for government and enterprises like analytics, backup/archive and consolidation are also presented. Two hybrid cloud solutions are described, one for enabling enterprise file systems on AWS and another for seamless backup and archive to Amazon S3 and Glacier.
An Azure Virtual Network (VNet) provides logical isolation within Azure to securely communicate resources. A VNet can connect to other VNets or on-premises networks. It contains components like network security groups, load balancers, and virtual appliances to filter and optimize traffic flow. Connections to a VNet can be made through point-to-site VPNs, site-to-site VPNs, or Azure ExpressRoute for private, high-bandwidth connections.
Microservices are small, autonomous services that work together to solve business problems. NATS is a messaging system that supports inter-service communication for microservices through a simple publish-subscribe model. NATS provides high performance, lightweight messaging that is easy to use. It supports building scalable, robust applications. The document discusses using NATS to implement an outpatient department application with multiple microservices that communicate through messages. Observability is implemented through logging, metrics collection and dashboards. Microservices can integrate with other enterprise systems through an integration platform.
Apache Kafka as Message Queue for your microservices and other occasionsMichael Reinsch
This talk provides a quick intro to Apache Kafka, the basic concepts, and why it's good as a message queue.
We'll also explore the benefits and challenges of using a message queue as base of your microservices infrastructure (especially when transitioning from a monolith).
Service Mesh with Apache Kafka, Kubernetes, Envoy, Istio and LinkerdKai Wähner
Microservice architectures are not free lunch! Microservices need to be decoupled, flexible, operationally transparent, data aware and elastic. Most material from last years only discusses point-to-point architectures with inflexible and non-scalable technologies like REST / HTTP. This video takes a look at cutting edge technologies like Apache Kafka, Kubernetes, Envoy, Linkerd and Istio to implement a cloud-native service mesh to solve these challenges and bring microservices to the next level of scale, speed and efficiency.
Key takeaways:
- Apache Kafka decouples services, including event streams and request-response
- Kubernetes provides a cloud-native infrastructure for the Kafka ecosystem
- Service Mesh helps with security and observability at ecosystem / organization scale
- Envoy and Istio sit in the layer above Kafka and are orthogonal to the goals Kafka addresses
Blog post: http://www.kai-waehner.de/blog/2019/09/24/cloud-native-apache-kafka-kubernetes-envoy-istio-linkerd-service-mesh
Video recording of this slide deck: https://youtu.be/Us_C4RFOUrA
By default Azure does not provide any network traffic isolation between the subnets in VNETs. This creates a unique challenge for IT network and security professionals who have multiple subnets in Azure and would like to provide segmentation within the VNETS; an architecture that is common in on premise networks, for both physical and virtual infrastructures, for mitigating various security concerns. Azure NSGs (Network Security Groups) provides solutions for such virtual network segmentations without using any additional virtual appliances.
You will learn :
1.Azure VM traffic isolation
2.Azure VNET traffic isolation
3.Azure network segmentation through traffic isolation
4.Isolated network security zones
Easy, Secure, and Fast: Using NATS.io for Streams and ServicesNATS
Colin Sullivan presented on using NATS for streaming and services. NATS is an open source cloud native messaging system that can be used for distributed communication patterns like publish/subscribe and request/reply. It provides high performance, simplicity, security and availability. Key features include streams for fan out data flows and load balanced services. NATS supports topologies from standalone servers to global clusters and uses subjects, accounts and permissions for security and multi-tenancy. JetStream adds capabilities like at-least-once delivery and data persistence.
Are you jumping on the microservices bandwagon? When and when not to adopt micro services architecture? If you must, what are the considerations? This slidedeck will help answer a few of those questions...
Processing IoT Data from End to End with MQTT and Apache Kafka confluent
(Kai Waehner, Confluent) Kafka Summit SF 2018
This session discusses end-to-end use cases such as connected cars, smart home or healthcare sensors, where you integrate Internet of Things (IoT) devices with enterprise IT using open source technologies and standards. MQTT is a lightweight messaging protocol for IoT. However, MQTT is not built for high scalability, longer storage or easy integration to legacy systems. Apache Kafka is a highly scalable distributed streaming platform, which ingests, stores, processes and forwards high volumes of data from thousands of IoT devices.
This session discusses the Apache Kafka open source ecosystem as a streaming platform to process IoT data. See a live demo of how MQTT brokers like Mosquitto or RabbitMQ integrate with Kafka, and how you can even integrate MQTT clients to Kafka without MQTT Broker. Learn how to analyze the IoT data either natively on Kafka with Kafka Streams/KSQL or on an external big data cluster like Spark, Flink or Elasticsearch leveraging Kafka Connect.
An overview of Azure API Management, common use cases, and how it helps organizations to govern, publish, secure, analyze, and manage APIs for internal and external consumption whether their running in the cloud or on-prem.
This presentation discusses Windows Azure Blob Storage, covering from the Windows Azure Storage Overview, Blob Storage Basic Concept, Blob Storage Advanced, and finally the Tip of the day.
This presentation will discuss cloud computing at Cisco Canada, including an overview of Cloud Computing, Cisco’s cloud strategy, the unified Data Center, Cisco Solution, Cloud Case study, and advances in technology and platforms.
The document discusses the need for a 3D modeling tool based on UML for aspect-oriented software development. It notes that current UML diagrams do not adequately represent the weaving of aspects into base models. A 3D tool could represent cross-cutting concerns as a third dimension to better track how aspects affect models during development. The document also provides background on aspect-oriented programming concepts like pointcuts, advices, and weaving, and examples of how aspects can be modeled in UML.
Intro to Project Calico: a pure layer 3 approach to scale-out networkingPacket
Slide presentation from the April 16th, 2015 Downtown NY Tech Meetup hosted at Control Group and presented by Christopher Liljenstolpe from Project Calico (www.projectcalico.org)
Project Calico is a scale-out networking fabric for bare metal, container, VM, and hybrid environments. Project Calico leverages the same networking techniques used to scale out the Internet to present a highly scaleable, L3 network for those environments without the use of tunnels, overlays, or other complex constructs. We'll also do a demo of a Calico enabled Docker environment, and have plenty of time for q&a during and after.
About Christopher Liljenstolpe
Christopher is the original architect of Project Calico and one of the project's evangelists. In his day job, he's the director of solutions architecture at Metaswitch Networks. Prior to Calico/Metaswitch, he's designed and run some bio-informatics OpenStack clusters, done some SDN architecture work at Big Switch Networks, Run architecture at two large carriers (Telstra - AS1221, and Cable & Wireless/iMCI - AS3561) and been the IP CTO for Alcatel in Asia. He's also run networks in Antarctica (hint, bend radius becomes REALLY important at -50C), and been foolish enough to do a stint as a wg co-chair in the IETF. Occasionally you can have the (mis-)fortune of hearing him speak at conferences and the like.
Secure Kafka at scale in true multi-tenant environment ( Vishnu Balusu & Asho...confluent
Application teams in JPMC have started shifting towards building event driven architectures and real time steaming pipelines and Kafka has been at core in this journey. As application teams have started adopting Kafka rapidly, need for a centrally managed Kafka as a service has emerged. We have started delivering Kafka as a service in early 2018 and running in production for more than an year now operating 80+ clusters (and growing) in all environments together. One of the key requirements is to provide truly segregated, secured multi-tenant environment with RBAC model while satisfying financial regulations and controls at the same time. Operating clusters at large scale requires scalable self-service capabilities and cluster management orchestration. In this talk we will present - Our experiences in delivering and operating secured, multi-tenant and resilient Kafka clusters at scale. - Internals of our service framework/control plane which enables self-service capabilities for application teams, cluster build/patch orchestration and capacity management capabilities for TSE/admin teams. - Our approach in enabling automated Cross Datacenter failover for application teams using service framework and confluent replicator.
This is the Part 1 of the Azure Active Directory Topic. In this session I introduce the Azure AD and talk about what it is, how it differentiates with on-premises Active Directory Domain Services (AD DS). Further, in this session I provide demos on how to create Azure AD Users from the Azure Portal, associate Custom domains with the Azure AD tenant and the Azure AD PowerShell module. As a bonus, I also talk about and demo how to create additional Azure AD directory within the subscription.
To view recording of this webinar please use below URL:
http://wso2.com/library/webinars/2015/09/event-driven-architecture/
Enterprise systems today are moving towards being dynamic where change has become the norm rather than the exception. Such systems need to be loosely coupled, autonomous, versatile and adaptive. There arises the need to model such systems, and event driven architecture (EDA) is how such systems can be modelled and explained.
This webinar will discuss
The basics of EDA
How it can benefit your enterprise
How the WSO2 product stack complements this architectural pattern
Deploying CloudStack and Ceph with flexible VXLAN and BGP networking ShapeBlue
1) The document discusses using VXLAN, BGP and EVPN to implement a layer 3 network for a cloud deployment using Ceph and CloudStack. This allows scaling beyond the limits of layer 2 networks and VLANs.
2) Key infrastructure components discussed include Dell S5232F-ON switches running Cumulus Linux, SuperMicro hypervisors and Ceph storage servers using NVMe SSDs.
3) The deployment provides high performance private and public cloud infrastructure with scalable networking and over 650TB of reliable Ceph storage per rack.
As your service footprint grows, adding traffic control capabilities beyond stock solutions like kube-proxy becomes critical. Envoy provides fine grained routing control, load shedding, and metrics that help you scale your environment smoothly. We'll walk through several traffic control strategies using Envoy.
This document summarizes a presentation on hybrid cloud solutions given at the AWS Government, Education, and Nonprofit Symposium on June 25-26, 2015 in Washington DC. The presentation discusses how cloud computing represents a paradigm shift in IT, the growth of cloud adoption and trends like hybrid models. It outlines different hybrid architectures including performance optimization, control, and backup/disaster recovery. Common cloud use cases for government and enterprises like analytics, backup/archive and consolidation are also presented. Two hybrid cloud solutions are described, one for enabling enterprise file systems on AWS and another for seamless backup and archive to Amazon S3 and Glacier.
An Azure Virtual Network (VNet) provides logical isolation within Azure to securely communicate resources. A VNet can connect to other VNets or on-premises networks. It contains components like network security groups, load balancers, and virtual appliances to filter and optimize traffic flow. Connections to a VNet can be made through point-to-site VPNs, site-to-site VPNs, or Azure ExpressRoute for private, high-bandwidth connections.
Microservices are small, autonomous services that work together to solve business problems. NATS is a messaging system that supports inter-service communication for microservices through a simple publish-subscribe model. NATS provides high performance, lightweight messaging that is easy to use. It supports building scalable, robust applications. The document discusses using NATS to implement an outpatient department application with multiple microservices that communicate through messages. Observability is implemented through logging, metrics collection and dashboards. Microservices can integrate with other enterprise systems through an integration platform.
Apache Kafka as Message Queue for your microservices and other occasionsMichael Reinsch
This talk provides a quick intro to Apache Kafka, the basic concepts, and why it's good as a message queue.
We'll also explore the benefits and challenges of using a message queue as base of your microservices infrastructure (especially when transitioning from a monolith).
Service Mesh with Apache Kafka, Kubernetes, Envoy, Istio and LinkerdKai Wähner
Microservice architectures are not free lunch! Microservices need to be decoupled, flexible, operationally transparent, data aware and elastic. Most material from last years only discusses point-to-point architectures with inflexible and non-scalable technologies like REST / HTTP. This video takes a look at cutting edge technologies like Apache Kafka, Kubernetes, Envoy, Linkerd and Istio to implement a cloud-native service mesh to solve these challenges and bring microservices to the next level of scale, speed and efficiency.
Key takeaways:
- Apache Kafka decouples services, including event streams and request-response
- Kubernetes provides a cloud-native infrastructure for the Kafka ecosystem
- Service Mesh helps with security and observability at ecosystem / organization scale
- Envoy and Istio sit in the layer above Kafka and are orthogonal to the goals Kafka addresses
Blog post: http://www.kai-waehner.de/blog/2019/09/24/cloud-native-apache-kafka-kubernetes-envoy-istio-linkerd-service-mesh
Video recording of this slide deck: https://youtu.be/Us_C4RFOUrA
By default Azure does not provide any network traffic isolation between the subnets in VNETs. This creates a unique challenge for IT network and security professionals who have multiple subnets in Azure and would like to provide segmentation within the VNETS; an architecture that is common in on premise networks, for both physical and virtual infrastructures, for mitigating various security concerns. Azure NSGs (Network Security Groups) provides solutions for such virtual network segmentations without using any additional virtual appliances.
You will learn :
1.Azure VM traffic isolation
2.Azure VNET traffic isolation
3.Azure network segmentation through traffic isolation
4.Isolated network security zones
Easy, Secure, and Fast: Using NATS.io for Streams and ServicesNATS
Colin Sullivan presented on using NATS for streaming and services. NATS is an open source cloud native messaging system that can be used for distributed communication patterns like publish/subscribe and request/reply. It provides high performance, simplicity, security and availability. Key features include streams for fan out data flows and load balanced services. NATS supports topologies from standalone servers to global clusters and uses subjects, accounts and permissions for security and multi-tenancy. JetStream adds capabilities like at-least-once delivery and data persistence.
Are you jumping on the microservices bandwagon? When and when not to adopt micro services architecture? If you must, what are the considerations? This slidedeck will help answer a few of those questions...
Processing IoT Data from End to End with MQTT and Apache Kafka confluent
(Kai Waehner, Confluent) Kafka Summit SF 2018
This session discusses end-to-end use cases such as connected cars, smart home or healthcare sensors, where you integrate Internet of Things (IoT) devices with enterprise IT using open source technologies and standards. MQTT is a lightweight messaging protocol for IoT. However, MQTT is not built for high scalability, longer storage or easy integration to legacy systems. Apache Kafka is a highly scalable distributed streaming platform, which ingests, stores, processes and forwards high volumes of data from thousands of IoT devices.
This session discusses the Apache Kafka open source ecosystem as a streaming platform to process IoT data. See a live demo of how MQTT brokers like Mosquitto or RabbitMQ integrate with Kafka, and how you can even integrate MQTT clients to Kafka without MQTT Broker. Learn how to analyze the IoT data either natively on Kafka with Kafka Streams/KSQL or on an external big data cluster like Spark, Flink or Elasticsearch leveraging Kafka Connect.
An overview of Azure API Management, common use cases, and how it helps organizations to govern, publish, secure, analyze, and manage APIs for internal and external consumption whether their running in the cloud or on-prem.
This presentation discusses Windows Azure Blob Storage, covering from the Windows Azure Storage Overview, Blob Storage Basic Concept, Blob Storage Advanced, and finally the Tip of the day.
This presentation will discuss cloud computing at Cisco Canada, including an overview of Cloud Computing, Cisco’s cloud strategy, the unified Data Center, Cisco Solution, Cloud Case study, and advances in technology and platforms.
The document discusses the need for a 3D modeling tool based on UML for aspect-oriented software development. It notes that current UML diagrams do not adequately represent the weaving of aspects into base models. A 3D tool could represent cross-cutting concerns as a third dimension to better track how aspects affect models during development. The document also provides background on aspect-oriented programming concepts like pointcuts, advices, and weaving, and examples of how aspects can be modeled in UML.
want to learn about Aspect-Oriented Software Development with Use Cases. These ppts will help you . Still need more info or help with any assignment related to use case visit http://www.myassignmenthelp.net/uml-assignment-help.php
Evolutionary Problems In Aspect Oriented Software Developmentkim.mens
This document discusses evolutionary problems in aspect-oriented software development. It identifies three main categories of challenges: aspect exploration, which involves discovering potential aspects in a system; aspect extraction, which involves migrating code to an aspect-oriented solution; and aspect evolution, which involves maintaining and evolving an aspect-oriented system over time. Each category presents open research problems regarding how to effectively discover, extract, and manage crosscutting concerns through the use of aspects. The document argues that addressing these problems will be important for achieving widespread adoption of aspect-oriented software development.
This document defines key concepts related to aspect-oriented programming (AOP) such as concerns, core concerns, cross-cutting concerns, aspects, and separation of concerns. It explains that AOP is a technique that supports cleanly separating concerns through modularization and loosely coupling components. It also discusses that aspect-oriented software development is a combination of mechanisms and methodologies to separate concerns at different abstraction levels using a combination of language, environment, and methods.
The document discusses various static and dynamic techniques for aspect mining, which is the process of identifying crosscutting concerns in existing source code. Static techniques discussed include fan-in analysis, clustering methods, clone detection, natural language processing analysis, and formal concept analysis. Dynamic techniques discussed include analyzing execution patterns in traces from program executions and applying formal concept analysis to execution traces. The goal of aspect mining is to facilitate migrating existing code to an aspect-oriented paradigm by identifying crosscutting concerns.
Introduction to Aspect Oriented Software Developmentmukhtarhudaya
The document outlines a course on aspect oriented software development, including an introduction and overview of aspect-oriented programming concepts, separation of concerns, and case studies of aspects in enterprise software. It provides details on course organization, topics that will be covered, assignments, evaluation criteria, and contact information for questions.
Aspect-Oriented Software Development (AOSD) is a programming methodology that addresses limitations in object-oriented programming for modularizing cross-cutting concerns. AOSD uses aspects to encapsulate cross-cutting concerns so they can be separated from the core functionality. Aspects are automatically incorporated into the system by a weaver. This improves modularity and makes software easier to maintain and evolve over time.
Aspect-oriented software development (AOSD) seeks to modularize software systems by isolating secondary concerns from the main program's logic. AOSD allows multiple concerns to be expressed separately and then automatically unified. It focuses on identifying, specifying, and representing cross-cutting concerns as separate, modular units that can be composed into a working system. Aspects encapsulate concerns and are composed of pointcuts and advice bodies. Pointcuts define where advice code should be executed.
This document summarizes key points from a lecture on aspect-oriented software development:
1. Aspect-oriented development supports separating concerns by representing cross-cutting concerns as aspects. This allows individual concerns to be understood, reused, and modified without changing other parts of the program.
2. Viewpoint-oriented requirements engineering focuses on stakeholder concerns and identifies cross-cutting concerns that affect all viewpoints.
3. Designing aspect-oriented systems involves identifying core functionality, aspects, and where aspects should be composed with the core. Testing aspect-oriented programs poses challenges around program inspection and deriving tests.
ابزار حاسبسيستم در طراحي و پيادهسازي سيستمهاي اطلاعاتي: DMS
شركت حاسبسيستم با بهرهگيري از ابزار DMS به طراحي و پيادهسازي سيستمهاي اطلاعاتي سازمانها ميپردازد. DMS ابزاري است جهت توسعه سيستمهاي مبتني بر داده كه با دارا بودن اكثر امكانات لازم براي طراحي و ساخت يك نرم افزار، به تولید نرم افزار در كمترين زمان ممكن ميپردازد.
قلاب سازی در تحلیل بدافزارهاHooking in Malware AnalysisM Mehdi Ahmadian
قلاب سازی ، یک مفهوم برای به دست آوردن کنترل جریان اجرایی برنامه بدون تغییر و کامپایل مجدد کد منبع آن است .
توسط متوقف سازی فراخوانی تابع و هدایت مجدد آن به کد سفارشیشده ، به دست میآید.
با تزریق کد سفارشی ، هر عملیاتی را میتوان اجرا نمود . پسازآن ، قابلیتهای اصلی تابع می تواند اجراشده و نتیجه میتواند یا بهسادگی برگشت داده شود و یا تغییر داده شود
محمد مهدی احمدیان
BPMN استانداردی برای مدل سازی فرایندهای کسب وکارRayBPMS
بی پی ام ان استانداردی برای مدلسازی و نمایش فرایندهای کسبوکار است و ابزار اصلی در تکنولوژی مدیریت فرآیندهای کسبوکار محسوب میشود. در واقع میتوان گفت مزیت اصلی استفاده از تکنولوژی مدیریت فرایند کسب و کار، وجود زبان استانداردی به نام بی پی ام ان است.
ویژگیهای داکر که میتواند فاصله بین نوشتن برنامه تا لحظه قرارگیری برنامه در محیط عملیاتی را به میزان قابل توجهی کاهش دهد و قابلیت تحویل سریعتر نرم افزار را بسیار افزایش دهد.
سرفصل مباحث:
- معرفی مفهوم Container و Containerization
- معرفی Docker - مزایا و معایب Docker
- چالش ها و فرصت های استفاده از Docker
- معرفی اولیه مفهوم CI/CD
3. نمونههای روشهای توسعه نرمافزار
Waterfall
V
Spiral
Evolutionary Prototyping
Scrum
Unified Process
Extreme Programming
4. CONCERN
• قسمتی از سیستم که مورد توجّه قرار میگیرد.
• معیار اولیه برای تجزیهی نرمافزار به قسمتهای کوچکتر، قابل مدیریت و قابل درک
(text,picture,video,exceptionhandling,…)
5. SEPRATIONOF CONCERNS
• بر تقسیم نرمافزار به قسمتهای مجزا تمرکز دارد که تا حد امکان از نظر
کارکرد تداخلی نداشته باشند.
6. CROSS-CUTTING CONCERN
• متشکل از کارکردهای مشترک است. (CommonFunctionality)
• جزء نیازهای کاربردی نیست.
• نمیتوان آن را به طور مشخص در یک دسته بندی عمومی گنجاند.از جمله
(Object,method,API,…)
7. مشکلات CROSSCUTTING CONCERNS
پراکندگی
( Scattering )
• هر گاه کد پیادهسازی دغدغه بین چند
ماژول پخش شده باشد.
پیچیدگی
( Tangling )
• هر گاه کد پیادهسازی یک دغدغه با کد
یک دغدغه دیگر مخلوط شده باشد.
8. ASPECT
قسمتی از برنامه که شامل تلاقی (Cross-Cut) چندین دغدغه (Concern)
جدا از هم است.
حکم کلاس را در برنامهنویسی شیگرا
دارد.
9. تعریف AOSD
• تکنولوژی توسعه نرم افزارجنبه گرا، به تازگی در حال ظهور است .
• روشی است برای رسیدن به پیمانه بندی (modularization) جدید و
ساخت برنامه از ابتدا تا زمان انتشار آن.
• اجازه میدهد تا چند دغدغه به طور جداگانه مطرح شود.
10. هدف AOSD
شناسایی ) identification )
تشخیص (specification)
ارائه ) representation )
Cross
cutting concerns
با تقسیم بندی modularization به واحدهای عملیاتی
جداگانه و ترکیب خودکار آنها در داخل سیستم
11. JOINPOINT
نقاط قابل توجّهی در چرخهی حیات برنامه
که ممکن است چندین دغدغه (concern)
ایجاد شود. به عنوان مثال نقطه فراخوانی متد
12. POINTCUT
در AOP نیاز است نقاطی که موجب فراخوانی یک جنبه میشوند تعریف
گردند، در حقیقت pointcut یک مجموعه از joinpoint ها را تعریف میکند.
13. ADVICE
کد تکمیلی که به سیستم اضافه
میشود تا کارهای مربوط به یک
دغدغه را انجام دهد.
15. ASPECT ORIENTED PROGRAMMING (AOP)
• تکنیکی که به برنامهنویس کمک میکند به طور مشخص، اجزاء و جنبه ها را
از یکدیگر جدا کند.
• توجه اصلی ماژول بندی کد:
ارائه مکانیزم برای جداکردن
دغدغههای متقاطع
(cross-cuttingconcerns)
در سطح کد
1. public aspect CheckInCustomer{
2. ...
3. public void Room.assignCustomer()
4. {
5. // code to check in customer
6. }
7. public void Reservation.consume()
8. {
9. // code to consume reservation
10. }
11. public void Payment.createBill()
12. {
13. // code to generate an initial outstanding bill
14. }
15. ...
16. }
16. مزایای AOP
• تقسیمبندی بخشهای مختلف به نحوی ساده میشود که برطرفکردن
دغدغهها باعث پیچیدگی زیادی نمیشود.
• طراحی، فهم و نگهداری سیستم را راحتتر میکند.
• باعث تولید محصولاتی با بهرهوری بالاتر،کیفیت بهتر و امکان اضافه کردن
قابلیتهای بیشتری میشود.
• بهتر میتوان از تداخل دغدغهها جلوگیری کرد.
17. AOP چگونه کار میکند؟
دغدغههای مختلف به صورت مستقل و با ارتباط و وابستگی پایین پیادهسازی
میشوند
با ترکیب این پیادهسازیها سیستم نهایی را آماده میکند
19. معایب AOP
• قدرت و توانائی زبان برنامهنویسی جنبهگرا در ایجاد کدهای غیرقابل اشکالزدائی
• برنا مهنویسی جنبهگرا سعی میکند که جزئیات فراخوانی متدها را نادیده بگیرد.
• میزان امنیت ترکیب جنبهها در زمان اجرا، کامپایل یا بارگذاری و تأثیرات جانبی
ناشی ازتغییر نام یک تابع
20. چه کاربردی برای شما دارد؟؟؟
• کد کمتری مینویسید )نقصکمتر(
• کد کمتری میخوانید.
• مختصر و فهم آسان
• توجه بیشتر
• بهرهوری بیشتر
• هزینه توسعه و نگهداری کاهشمیدهد.