Service Definition Document for Cloud Application Development Services

Transcription

1 Service Definition Document for Cloud Application Development Services Submitted to:

2 Table of Contents 1. Overview Service Details Service Benefits... 5 Annexure... 6 Page 2 w w w. z e n s a r. c o m

3 1. Overview Cloud Computing allows development without investing in new infrastructure or licensing new software and as a pay-per-use service. Developing software can be a complex and challenging experience based on cloud computing delivery model. The custom software development leveraging cloud computing services can have a significant positive impact on business. In order to realize this gain, the cloud based software development process has to be approached in a disciplined and organized way. 2. Service Details Zensar s Cloud based Application Development based approach addresses Software Development as illustrated below: Requirement Analysis System Design Development Testing (For Cloud) Deployment Testing (In Cloud) Production Figure 1 Service Details Requirement Analysis In this process the study and analysis of the existing applications / processes is carried out to understand the business need. In case of fresh application development interviews, discussions and meetings are helpful to understand business functionality. In this phase customer business and application is analyzed with respect to cloud background and provides input on approach for cloud readiness: Identify appropriate cloud services for application development Cloud specific requirement for business and application Addressing cloud specific application risks, issues and constraints Page 3 w w w. z e n s a r. c o m

4 Application assessment using PoC to do feasibility study System Design System Design focuses on architectural design (what modules are needed and how are they going to interact), low-level design (how the individual programs are going to work) and user interface design (what are the user interfaces going to look like). During this phase, software's overall structure is defined. Key Objectives of System Design: Prepare Architectural design (Including cloud aspects such as: scalability, security, Storage, Integration, session, DR and Failover etc.) Functional design document Technical design document Screen Layouts Finalization Development & Testing (For Cloud) During this stage, the application code will be developed based on the deployment architecture selected. The code developed will ensure a flexible and scalable application. Developers will perform testing (For Cloud) locally on simulated environment before the software is ready for deployment. The major tasks involved in this phase are: Coding as per the design and coding standards. Test and capture the observed behaviour of the system developed for cloud environment Deployment & Testing (In Cloud) Once the system is ready it can be deployed on Cloud Staging environment and Testing (In Cloud) is performed to check if the system maps with the base requirements, business rules, performs in the optimum manner and meets all such areas that formed the purpose for the system development. UAT would be performed by the business users who are the end users of the system, QA specialists at customer level and the business group that initiated the project requirement if applicable. The major tasks involved in this phase are: Deployment Staging environment and Testing (In Cloud) Perform the User Acceptance Testing (UAT) Fixing the bugs Record the results Production & Warranty Page 4 w w w. z e n s a r. c o m

5 After the confirmation and receiving satisfactory feedback from testing group, software moved from staging to production environment. Many cloud vendors provides staging environment for the temporary deployment and with one click it can be moved to production environment. Post implementation support and monitoring (i.e. Warranty support) starts when the deployment phase is over. Deployment consists of all of the activities that make a software system available for business use and is currently out of scope of the work. The major tasks involved in this phase are: Post-production support and monitoring Lessons Learnt 3. Service Benefits Efficient Cloud Development lifecycle Use of RAD (Rapid Application Development) Tool for generating.net and JAVA code Use of Guidelines and Checklists Use of White Papers and Best Practices Cloud-centric architecture design (Extensive use of cloud architecture patterns) Faster time to market due to use of Reusable components and Solution accelerators Ready Infrastructure (Cloud CoE Lab) and Cloud Platforms Detailed Plan on DR and Business Continuity Page 5 w w w. z e n s a r. c o m

6 Annexure Information Assurance Disaster Recovery as supplied by Platform On-Boarding and Off Boarding Processes/Scope Pricing Refer to the Rate Card for Pricing Document Service Management Details Service Constraints None Service Levels None Financial Recompense Model for not meeting Service Levels Please refer to the Terms and Conditions document o Training For Solution / Application developed (All trainings will be provided on Train-the-trainer basis) Ordering and Invoicing Process Please refer to the Terms and Conditions document Termination Terms Please refer to the Terms and Conditions document Page 6 w w w. z e n s a r. c o m

7 Data Restoration / Service Migration Consumer Responsibilities Technical Requirements Details of any Trial Service Available Page 7 w w w. z e n s a r. c o m