Welcome!

@CloudExpo Authors: Matt Brickey, Elizabeth White, Christoph Schell, Yeshim Deniz, Liz McMillan

Related Topics: @CloudExpo, Microservices Expo

@CloudExpo: Article

Software Development as a Service (DevaaS)

Agile and cloud - a winning combination

Runtime Benefits of Application Systems in the Cloud
With every major IT and telecom vendor announcing support for cloud every other day, the cloud is here to stay and no questions about it. However, most of the benefits are at runtime or when the IT applications are executed, for example:

  • We have options to consume applications from public clouds (SaaS)
  • We have options to utilize platforms of choice (PaaS)
  • We have production environments provisioned dynamically (IaaS)
  • We have environments scaled dynamically based on the usage patterns (elasticity and dynamic scaling)
  • We have metering and billing options (pay per use)
  • We share systems (multi-tenancy)

However, there aren't any case studies that show the value proposition of the cloud during the analysis, design, development and testing of IT applications.

IT Budget Allocations Waterfall vs Agile SDLC Models
Before the IT systems hit production and get the benefits of the runtime elasticity of the cloud platform, they go through a long and costly cycle of operations to get the systems to meet the needs of the business both functionally and non-functionally.

This cycle of process is generally referred to as SDLC (Software Development Life Cycle).

The IT team generally collaborates with business to obtain the budget allocation for building such systems. There are multiple ways that software systems go through their life cycle before they gets deployed to production:

Waterfall: The Waterfall Method is comprised of a series of very definite phases, each one run intended to be started sequentially only after the last has been completed, with one or more tangible deliverables produced at the end of each phase.

Essentially, it starts with a heavy, documented, requirements-planning-and-sign-off's phase that outlines all the requirements for the project, followed by sequential phases of design, coding, test-casing, optional documentation, verification (alpha-testing), validation (beta-testing), and finally deployment/release.

Agile: Agile methods break tasks into small increments with minimal planning, and do not directly involve long-term planning. Iterations are short time frames that typically last from one to four weeks. Each iteration involves a team working through a full software development cycle including planning, requirements analysis, design, coding, unit testing and acceptance testing when a working product is shown to the stake holders. This minimizes overall risk and allows the project to adapt to changes quickly. Stakeholders produce documentation as required.

Estimating The Project Size  And Budget Allocation  Waterfall Vs Agile

Waterfall

Agile

Requirements are frozen  and estimation cycles are long and detailed. Possible to predict the budget and effort.

Requirements evolve during the project and accurate estimates  and budgeting is not possible.

It is possible to identify, define, schedule,

and order all the detailed activities.

Near the beginning, it is not possible.

Adaptive steps driven by build-feedback

cycles are required.

Cloud Suitability for Waterfall SDLC

For Waterfall projects, the project resources such as:

  • Software needs
  • Hardware needs
  • Seating needs
  • Duration of the infrastructure rentals
  • Number of licensing needs

Can be predicted fairly accurately. While much of the advantages of the cloud are seen as an ‘Unpredictable' increase or decrease in needs. This theory leads us to think that adopting a Cloud platform for a Waterfall project may not produce much benefits in terms of budgetary and cost control.

Agile SDLC And Cloud

  • In agile estimating is iterative. Estimates change as more information emerges.
  • In a complex environment with frequent changes that cannot be anticipated, estimation must be done in an incremental and adaptive way.
  • Customers will have the option to scale up and scale down the
    • Number of requirements
    • Complexity of Requirements

Per iteration

The following alignment between Agile SDLC and Cloud will dramatically reduce the budgets allocated with the software development life cycle.

Software Licenses    =>   PaaS Offerings

Server, Infrastructure Needs   =>   IaaS Offerings

Productivity Tools  =>   SaaS Offerings

With a minimal team of key people involving the prime stake holders every thing else can be dynamically provisioned to support the Agile SDLC, as shown below.

The Missing Link - ‘Development as a Service'
The above diagram indicates that most of the unpredictable cost factors of the Agile SDLC (Software, Licenses, Tools, Platform and Servers) can be dynamically scaled using Cloud.

But what is missing are the resources, how an Agile organization can dynamically provision human resources to support the increase or decrease in the needs.

It brings the interesting concept of (Software) Development As A Service, so that the software development Components can be provisioned as a service, using the Cloud-based model.

The following diagram gives an outline of (Software) Development as a Service. This concept is not new, several IT Services organization have adopted Software Factories such that the if desired input is given for a software development task the same can be produced and delivered. The same concept can be extended to Cloud, in a catalogue and self service based provisioning and hence organizations adopting agile development can provision the software development needs on-demand basis.

Summary
As we have seen, the Agile SDLC method mitigates much of the risks of the  large water fall software development projects. This method also brings the  software development costs under control. With the adoption of  Cloud the cost of  Agile SDLC will go further down.

The  new thinking on DevaaS (Development As A Service), if realized can transform the way the software development can be thought out and executed.

More Stories By Srinivasan Sundara Rajan

Highly passionate about utilizing Digital Technologies to enable next generation enterprise. Believes in enterprise transformation through the Natives (Cloud Native & Mobile Native).

@CloudExpo Stories
"Outscale was founded in 2010, is based in France, is a strategic partner to Dassault Systémes and has done quite a bit of work with divisions of Dassault," explained Jackie Funk, Digital Marketing exec at Outscale, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"DX encompasses the continuing technology revolution, and is addressing society's most important issues throughout the entire $78 trillion 21st-century global economy," said Roger Strukhoff, Conference Chair. "DX World Expo has organized these issues along 10 tracks with more than 150 of the world's top speakers coming to Istanbul to help change the world."
Kubernetes is an open source system for automating deployment, scaling, and management of containerized applications. Kubernetes was originally built by Google, leveraging years of experience with managing container workloads, and is now a Cloud Native Compute Foundation (CNCF) project. Kubernetes has been widely adopted by the community, supported on all major public and private cloud providers, and is gaining rapid adoption in enterprises. However, Kubernetes may seem intimidating and complex ...
"DivvyCloud as a company set out to help customers automate solutions to the most common cloud problems," noted Jeremy Snyder, VP of Business Development at DivvyCloud, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
While the focus and objectives of IoT initiatives are many and diverse, they all share a few common attributes, and one of those is the network. Commonly, that network includes the Internet, over which there isn't any real control for performance and availability. Or is there? The current state of the art for Big Data analytics, as applied to network telemetry, offers new opportunities for improving and assuring operational integrity. In his session at @ThingsExpo, Jim Frey, Vice President of S...
"We focus on SAP workloads because they are among the most powerful but somewhat challenging workloads out there to take into public cloud," explained Swen Conrad, CEO of Ocean9, Inc., in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"As we've gone out into the public cloud we've seen that over time we may have lost a few things - we've lost control, we've given up cost to a certain extent, and then security, flexibility," explained Steve Conner, VP of Sales at Cloudistics,in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We are focused on SAP running in the clouds, to make this super easy because we believe in the tremendous value of those powerful worlds - SAP and the cloud," explained Frank Stienhans, CTO of Ocean9, Inc., in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
DX World EXPO, LLC., a Lighthouse Point, Florida-based startup trade show producer and the creator of "DXWorldEXPO® - Digital Transformation Conference & Expo" has announced its executive management team. The team is headed by Levent Selamoglu, who has been named CEO. "Now is the time for a truly global DX event, to bring together the leading minds from the technology world in a conversation about Digital Transformation," he said in making the announcement.
"Peak 10 is a hybrid infrastructure provider across the nation. We are in the thick of things when it comes to hybrid IT," explained , Chief Technology Officer at Peak 10, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"I think DevOps is now a rambunctious teenager – it’s starting to get a mind of its own, wanting to get its own things but it still needs some adult supervision," explained Thomas Hooker, VP of marketing at CollabNet, in this SYS-CON.tv interview at DevOps Summit at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We are still a relatively small software house and we are focusing on certain industries like FinTech, med tech, energy and utilities. We help our customers with their digital transformation," noted Piotr Stawinski, Founder and CEO of EARP Integration, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We've been engaging with a lot of customers including Panasonic, we've been involved with Cisco and now we're working with the U.S. government - the Department of Homeland Security," explained Peter Jung, Chief Product Officer at Pulzze Systems, in this SYS-CON.tv interview at @ThingsExpo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We're here to tell the world about our cloud-scale infrastructure that we have at Juniper combined with the world-class security that we put into the cloud," explained Lisa Guess, VP of Systems Engineering at Juniper Networks, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"I will be talking about ChatOps and ChatOps as a way to solve some problems in the DevOps space," explained Himanshu Chhetri, CTO of Addteq, in this SYS-CON.tv interview at @DevOpsSummit at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
Your homes and cars can be automated and self-serviced. Why can't your storage? From simply asking questions to analyze and troubleshoot your infrastructure, to provisioning storage with snapshots, recovery and replication, your wildest sci-fi dream has come true. In his session at @DevOpsSummit at 20th Cloud Expo, Dan Florea, Director of Product Management at Tintri, provided a ChatOps demo where you can talk to your storage and manage it from anywhere, through Slack and similar services with...
The financial services market is one of the most data-driven industries in the world, yet it’s bogged down by legacy CPU technologies that simply can’t keep up with the task of querying and visualizing billions of records. In his session at 20th Cloud Expo, Karthik Lalithraj, a Principal Solutions Architect at Kinetica, discussed how the advent of advanced in-database analytics on the GPU makes it possible to run sophisticated data science workloads on the same database that is housing the rich...
SYS-CON Events announced today that Massive Networks will exhibit at 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. Massive Networks mission is simple. To help your business operate seamlessly with fast, reliable, and secure internet and network solutions. Improve your customer's experience with outstanding connections to your cloud.
"We are an IT services solution provider and we sell software to support those solutions. Our focus and key areas are around security, enterprise monitoring, and continuous delivery optimization," noted John Balsavage, President of A&I Solutions, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
Everything run by electricity will eventually be connected to the Internet. Get ahead of the Internet of Things revolution and join Akvelon expert and IoT industry leader, Sergey Grebnov, in his session at @ThingsExpo, for an educational dive into the world of managing your home, workplace and all the devices they contain with the power of machine-based AI and intelligent Bot services for a completely streamlined experience.