Welcome!

Log Management Authors: Dana Gardner, Pat Romanski, Elizabeth White, David H Deans, Carmen Gonzalez

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).

IoT & Smart Cities Stories
Every organization is facing their own Digital Transformation as they attempt to stay ahead of the competition, or worse, just keep up. Each new opportunity, whether embracing machine learning, IoT, or a cloud migration, seems to bring new development, deployment, and management models. The results are more diverse and federated computing models than any time in our history.
At CloudEXPO Silicon Valley, June 24-26, 2019, Digital Transformation (DX) is a major focus with expanded DevOpsSUMMIT and FinTechEXPO programs within the DXWorldEXPO agenda. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive over the long term. A total of 88% of Fortune 500 companies from a generation ago are now out of business. Only 12% still survive. Similar percentages are found throug...
At CloudEXPO Silicon Valley, June 24-26, 2019, Digital Transformation (DX) is a major focus with expanded DevOpsSUMMIT and FinTechEXPO programs within the DXWorldEXPO agenda. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive over the long term. A total of 88% of Fortune 500 companies from a generation ago are now out of business. Only 12% still survive. Similar percentages are found throug...
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.
Digital Transformation is much more than a buzzword. The radical shift to digital mechanisms for almost every process is evident across all industries and verticals. This is often especially true in financial services, where the legacy environment is many times unable to keep up with the rapidly shifting demands of the consumer. The constant pressure to provide complete, omnichannel delivery of customer-facing solutions to meet both regulatory and customer demands is putting enormous pressure on...
IoT is rapidly becoming mainstream as more and more investments are made into the platforms and technology. As this movement continues to expand and gain momentum it creates a massive wall of noise that can be difficult to sift through. Unfortunately, this inevitably makes IoT less approachable for people to get started with and can hamper efforts to integrate this key technology into your own portfolio. There are so many connected products already in place today with many hundreds more on the h...
The standardization of container runtimes and images has sparked the creation of an almost overwhelming number of new open source projects that build on and otherwise work with these specifications. Of course, there's Kubernetes, which orchestrates and manages collections of containers. It was one of the first and best-known examples of projects that make containers truly useful for production use. However, more recently, the container ecosystem has truly exploded. A service mesh like Istio addr...
Digital Transformation: Preparing Cloud & IoT Security for the Age of Artificial Intelligence. As automation and artificial intelligence (AI) power solution development and delivery, many businesses need to build backend cloud capabilities. Well-poised organizations, marketing smart devices with AI and BlockChain capabilities prepare to refine compliance and regulatory capabilities in 2018. Volumes of health, financial, technical and privacy data, along with tightening compliance requirements by...
Charles Araujo is an industry analyst, internationally recognized authority on the Digital Enterprise and author of The Quantum Age of IT: Why Everything You Know About IT is About to Change. As Principal Analyst with Intellyx, he writes, speaks and advises organizations on how to navigate through this time of disruption. He is also the founder of The Institute for Digital Transformation and a sought after keynote speaker. He has been a regular contributor to both InformationWeek and CIO Insight...
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...