Welcome!

Microservices Expo Authors: Aruna Ravichandran, Elizabeth White, Liz McMillan, Pat Romanski, Cameron Van Orman

Related Topics: Microservices Expo, @CloudExpo

Microservices Expo: Blog Feed Post

Microservices: New SOA or Buzzword? | @CloudExpo [#Microservices #API]

Microservices is a new architectural style based upon independent services

Capability Analysis
Source: English Wikipedia

Microservices is a new architectural style based upon independent services.

The terms Microservices and Microservices Architecture are often used. It is an architecture based on independent relatively small components named Micro Services.

Some people may think that Microservices Architecture is a new and improved Service Oriented Architecture (SOA). It is not.

Martin Fowler is the first name mentioned in articles about Micro Services. Fowler is a British Software Engineer specialized in Software development.

I read the article: Microservices in Fowler's Web site. I am more confused about Microservices characteristics after reading the article.

The article was written by James Lewis and Martin Fowler.

What Microservice Architecture is and what Microservice is?
The articles discussed the following characteristics of Microservice Architecture and Microservices:

1. It is a new Architectural style

OK, let's understand what is new and what is its Value Proposition.

2. "approach to developing a single application as a suite of small services"

Nothing to write home about. Remember Cool:Gen?

A leading Client/Server IDE. It was a leading Component Based Development (CBD) tool. Its first version was launch in 1987. It is easy to find other IDE tools which were available 15 years or twenty years ago and were based on CBD methodology.

The Services granularity is small, unlike the coarse grained granularity of SOA Services.

3. "each running in its own process and communicating with light weight mechanism, often an HTTP resource API."

This is a performance issue: is the Overhead of many Microservices small enough?

I am sure that for large applications it is not, unless light weight communication mechanism is used.

Similarly, REST is preferred over SOAP because of better Performance and reduced Complexity.

4. The Microservices are "independently deployable by fully automated deployment machinery"

It could be a good technical approach for Deployment and for Change Management.

5. Monolithic applications run a in a single process they are scaled by multiple instances. Each Microservice is deployed under a different process. No need to multiple instances, so Change Management is simpler and less error prawn.

Monolithic Applications are not Silo Systems or Monolithic Applications in SOA context. In this article they refer to Server Side only applications, while in SOA context they include all layers: Server as well as Clients and Middleware.

As in previous section the focus is technical. By running each Micro Process under different process, Performance could be improved and Deployment and Change Management of each Micro Service is less dependent on other Micro Services.

6. "These services are build around Business Capabilities"
Now I am really confused. How componentization of Application could be related to Business Capabilities?

Capabilities and SOA Services
Capabilities are defined as Coarse grained Business elements. Capability Analysis is used for bridging between Business Architecture and Service Oriented Architecture.

Capabilities are Business entities defining what and not How the Organization could do something Valuable.

System Analysis in Service Oriented Architecture could use Capability Analysis. After defining the Capabilities, you could map each Capability to Services i.e. according to the frequently used definition of Capabilities, a Capability is more Coarse Grained than a Service.

How could a Capacity will be related to a Fine Grained entity such as Microservice?

What is the relationship between an Inter-Application entity (Micro Service) and a Business Entity (Capability)?

I do not have adequate answers to those questions.

Even if you define Capability as a smaller Business entity mapped  Many to One to SOA Service, i.e. few capabilities included in a Service, I am still confused about its relationship to Micro Services.

It should be noted, that some companies, defined Capability as a less Coarse Grained entity than a SOA Service.

The Bottom Line
Microservice Architecture is a new architectural style using terminology and approach resembling Service Oriented Architecture. However, the scope of Micro Service Architecture is Inter-Application.

SOA scope is Enterprise and Virtual Enterprise. Virtual Enterprise may refer to Public Clouds and Hybrid Clouds, as well as other types of implementing some of the Applications or some of the Services outside the Enterprise boundaries.

SOA Services are defined by Business Services  boundaries. The alignment of Micro Services to Business Services is not well defined.

My Take
Microservice Architecture could be useful. It is a small scale SOA like Architecture within an Application. It should be compared to other approaches to defining and managing Application Components.

Service Oriented Architecture is defined in another level and is orthogonal to Inter-Application Architectural styles such as: Microservices Architecture or OMG's CBD model.

Micro Service Architecture could be useful for Agile Software Development Methodologies. It completes the methodology by adding a development and deployment style.  

More Stories By Avi Rosenthal

Ari has over 30 years of experience in IT across a wide variety of technology platforms, including application development, technology selection, application and infrastructure strategies, system design, middleware and transaction management technologies and security.

Positions held include CTO for one of the largest software houses in Israel as well as the CTO position for one of the largest ministries of the Israeli government.

@MicroservicesExpo Stories
Digital transformation leaders have poured tons of money and effort into coding in recent years. And with good reason. To succeed at digital, you must be able to write great code. You also have to build a strong Agile culture so your coding efforts tightly align with market signals and business outcomes. But if your investments in testing haven’t kept pace with your investments in coding, you’ll lose. But if your investments in testing haven’t kept pace with your investments in coding, you’ll...
In his session at 21st Cloud Expo, Michael Burley, a Senior Business Development Executive in IT Services at NetApp, will describe how NetApp designed a three-year program of work to migrate 25PB of a major telco's enterprise data to a new STaaS platform, and then secured a long-term contract to manage and operate the platform. This significant program blended the best of NetApp’s solutions and services capabilities to enable this telco’s successful adoption of private cloud storage and launchi...
DevOps at Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to w...
Enterprises are adopting Kubernetes to accelerate the development and the delivery of cloud-native applications. However, sharing a Kubernetes cluster between members of the same team can be challenging. And, sharing clusters across multiple teams is even harder. Kubernetes offers several constructs to help implement segmentation and isolation. However, these primitives can be complex to understand and apply. As a result, it’s becoming common for enterprises to end up with several clusters. Thi...
Containers are rapidly finding their way into enterprise data centers, but change is difficult. How do enterprises transform their architecture with technologies like containers without losing the reliable components of their current solutions? In his session at @DevOpsSummit at 21st Cloud Expo, Tony Campbell, Director, Educational Services at CoreOS, will explore the challenges organizations are facing today as they move to containers and go over how Kubernetes applications can deploy with lega...
Today most companies are adopting or evaluating container technology - Docker in particular - to speed up application deployment, drive down cost, ease management and make application delivery more flexible overall. As with most new architectures, this dream takes significant work to become a reality. Even when you do get your application componentized enough and packaged properly, there are still challenges for DevOps teams to making the shift to continuous delivery and achieving that reducti...
Is advanced scheduling in Kubernetes achievable? Yes, however, how do you properly accommodate every real-life scenario that a Kubernetes user might encounter? How do you leverage advanced scheduling techniques to shape and describe each scenario in easy-to-use rules and configurations? In his session at @DevOpsSummit at 21st Cloud Expo, Oleg Chunikhin, CTO at Kublr, will answer these questions and demonstrate techniques for implementing advanced scheduling. For example, using spot instances ...
SYS-CON Events announced today that Cloud Academy has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Cloud Academy is the leading technology training platform for enterprise multi-cloud infrastructure. Cloud Academy is trusted by leading companies to deliver continuous learning solutions across Amazon Web Services, Microsoft Azure, Google Cloud Platform, and the most...
The last two years has seen discussions about cloud computing evolve from the public / private / hybrid split to the reality that most enterprises will be creating a complex, multi-cloud strategy. Companies are wary of committing all of their resources to a single cloud, and instead are choosing to spread the risk – and the benefits – of cloud computing across multiple providers and internal infrastructures, as they follow their business needs. Will this approach be successful? How large is the ...
DevOps is often described as a combination of technology and culture. Without both, DevOps isn't complete. However, applying the culture to outdated technology is a recipe for disaster; as response times grow and connections between teams are delayed by technology, the culture will die. A Nutanix Enterprise Cloud has many benefits that provide the needed base for a true DevOps paradigm. In their Day 3 Keynote at 20th Cloud Expo, Chris Brown, a Solutions Marketing Manager at Nutanix, and Mark Lav...
Many organizations adopt DevOps to reduce cycle times and deliver software faster; some take on DevOps to drive higher quality and better end-user experience; others look to DevOps for a clearer line-of-sight to customers to drive better business impacts. In truth, these three foundations go together. In this power panel at @DevOpsSummit 21st Cloud Expo, moderated by DevOps Conference Co-Chair Andi Mann, industry experts will discuss how leading organizations build application success from all...
DevSecOps – a trend around transformation in process, people and technology – is about breaking down silos and waste along the software development lifecycle and using agile methodologies, automation and insights to help get apps to market faster. This leads to higher quality apps, greater trust in organizations, less organizational friction, and ultimately a five-star customer experience. These apps are the new competitive currency in this digital economy and they’re powered by data. Without ...
With the modern notion of digital transformation, enterprises are chipping away at the fundamental organizational and operational structures that have been with us since the nineteenth century or earlier. One remarkable casualty: the business process. Business processes have become so ingrained in how we envision large organizations operating and the roles people play within them that relegating them to the scrap heap is almost unimaginable, and unquestionably transformative. In the Digital ...
These days, APIs have become an integral part of the digital transformation journey for all enterprises. Every digital innovation story is connected to APIs . But have you ever pondered over to know what are the source of these APIs? Let me explain - APIs sources can be varied, internal or external, solving different purposes, but mostly categorized into the following two categories. Data lakes is a term used to represent disconnected but relevant data that are used by various business units wit...
The nature of the technology business is forward-thinking. It focuses on the future and what’s coming next. Innovations and creativity in our world of software development strive to improve the status quo and increase customer satisfaction through speed and increased connectivity. Yet, while it's exciting to see enterprises embrace new ways of thinking and advance their processes with cutting edge technology, it rarely happens rapidly or even simultaneously across all industries.
With the rise of DevOps, containers are at the brink of becoming a pervasive technology in Enterprise IT to accelerate application delivery for the business. When it comes to adopting containers in the enterprise, security is the highest adoption barrier. Is your organization ready to address the security risks with containers for your DevOps environment? In his session at @DevOpsSummit at 21st Cloud Expo, Chris Van Tuin, Chief Technologist, NA West at Red Hat, will discuss: The top security r...
Most of the time there is a lot of work involved to move to the cloud, and most of that isn't really related to AWS or Azure or Google Cloud. Before we talk about public cloud vendors and DevOps tools, there are usually several technical and non-technical challenges that are connected to it and that every company needs to solve to move to the cloud. In his session at 21st Cloud Expo, Stefano Bellasio, CEO and founder of Cloud Academy Inc., will discuss what the tools, disciplines, and cultural...
Enterprises are moving to the cloud faster than most of us in security expected. CIOs are going from 0 to 100 in cloud adoption and leaving security teams in the dust. Once cloud is part of an enterprise stack, it’s unclear who has responsibility for the protection of applications, services, and data. When cloud breaches occur, whether active compromise or a publicly accessible database, the blame must fall on both service providers and users. In his session at 21st Cloud Expo, Ben Johnson, C...
21st International Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Me...
‘Trend’ is a pretty common business term, but its definition tends to vary by industry. In performance monitoring, trend, or trend shift, is a key metric that is used to indicate change. Change is inevitable. Today’s websites must frequently update and change to keep up with competition and attract new users, but such changes can have a negative impact on the user experience if not managed properly. The dynamic nature of the Internet makes it necessary to constantly monitor different metrics. O...