Effective management of system capability is crucial for business success and sustenance of competitive advantage. System Architecture needs to maintain a balance across multiple factors, viz. rapidly evolving technology, dynamic business scenarios, and integration with diverse systems, without increasing the cost of software development and the complexity of software systems.
Enterprise System Architecture needs to be expressed effectively for addressing key business concerns such as the following:
- Modernizing the hardware and software environments (reduce the complexity of IT infrastructure)
- Meeting quality attribute goals of applications such as but not limited to availability, scalability, performance, reliability, portability, and maintainability
- Addressing the security challenges associated with the integration of multiple applications, devices, and data sources
The practice of systematic development can provide benefits in terms of quality and cost gains by adherence to architectural guidelines. A key premise of this logic is that important decisions may be made early in system development in a manner similar to the development of civil architecture projects.
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OUR APPROACH
Tactility recommends an approach based on the generally accepted practices for architectural description and provides a technical framework for further evolution in this area. We initiate a criteria-based selection approach to describe how the system or product will be constructed; what the critical components would be; and their applicability from a high-level, logical perspective.
Mapping such a selection against the available templates helps to leverage architecture principles for defining the system architecture, which addresses the visibility, changeability, and collaborative aspects to meet defined quality expectations of the customers.
KEY ACTIVITIES
Analysis of System and Product Scenarios
- Domain, industry practices, and statistics
- Tools and technology usage
- Costs and timelines
- Learnings from a similar system
Identification of key parameters
- Architectural principles applicable
- Best practices to be followed
- Quality of Service (QoS) to be achieved
- Integration need
- Commercial off-the-shelf (COTS) product consideration
Creating System Architecture document
- Standard architectural details along with key constraints, assumptions, and risks
- Detailed mapping metrics addressing stakeholder concerns
- Rationale behind the selection of architectural principles and tradeoff considerations
- Metrics about the expected and targeted quality if architecture description is followed
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