Creating High-Level Designs for Effective System Development.

Hlevel Architecture – Creating a High-Level Design

Michaela founded Hlevel Architecture to focus on unique residential design, small commercial projects and custom ADU’s with a modern holistic approach to the project’s natural context. The firm is committed to providing the best solutions specific to each project.

Interfaces should be identified and designed early. Novel interfaces may be difficult to implement and will add integration costs and schedule time.

System Requirements

A high-level design (HLD) is an overview of a system, product, or service that helps supporting components be compatible. It should describe the platform, any significant commercial, legal, environmental, safety, and security requirements and any assumptions and constraints. It should also provide brief consideration of alternative systems configurations.

HLD documents should be clear and concise, containing non-technical to mildly technical descriptions of the systems that need to be designed, their interfaces, and how they will fit together. Specifying designs too early in the project may impose unnecessary development costs or lead to obsolescence before deployment.

The HLA standard provides a framework for connecting (federating) computer simulations from different computers running different operating systems, using different programming languages, and with various architectures into a single unified simulation. It is used by the US Department of Defense to support analysis, engineering, and training in a wide range of military and civilian applications. It consists of an Interface Specification and a Federate Reference Model.

HLD Evaluation

Creating an HLD requires significant time and effort. It’s often a multi-iteration, highly customized, bespoke process that can’t be justified at this early stage of the project. Stakeholders need to be able to make a decision on the requirements, Statement of Work and scope before investing in this effort.

HLDs are usually a set of diagrams, such as block diagrams, entity-relationship diagrams or class diagrams that describe the overall architecture of the system. The HLD should be clearly linked to the system’s requirements, and provide a bird’s eye view of how the solution will function once it is implemented.

New guidelines for reprocessing flexible endoscopes in health care facilities call for sterilization rather than high-level disinfection to reliably rid the devices of dangerous microorganisms. The change could have a profound impact on the safety and quality of patient care. Previous studies of interdependent urban critical infrastructure systems (CISs) have failed to incorporate CIS domain knowledge or adequately model CISs’ interdependencies.

HLD Selection

Creating a High-Level Design is like making a big plan for how your software will work. It will help you find problems early and prevent them from becoming a big problem later on. Once the HLD is complete, you can start designing the low-level design (LLD). LLD is more detailed and focuses on how to write the code. It also includes navigational details and technical requirements.

The process of selecting an architecture is a critical step in the overall system development. The goal is to make sure the selected architecture meets all of the project’s requirements. During this step, the system engineers evaluate several alternatives using analytical tools to determine which one is best for the project. This evaluation takes into account functionality, performance, and technology constraints. The result is a detailed HLD that will guide the coding and testing phases of the project. The HLD will also include a clear path for the implementation of the system’s functionality.

HLD Implementation

In complex transformation projects it is critical to have a framework and process in place for E2E HLD deliverables. A well-defined architecture design blueprint, ideally supported by an E2E Requirements Traceability Matrix, will ensure a quality end-to-end solution that is designed and delivered in a lean and just-in-time manner.

HLD provides a broad overview of the system, including its main components and their interactions, the main algorithms that will be used, and the data structures that will be implemented. The HLD should be reviewed by the stakeholders to ensure that it is accurate, understandable, and meets the requirements of the project.

HLD can also provide useful information if the design falls short of meeting the requirements. It is important to consider this when making a decision about which architecture to carry forward, and what alternative fully-compliant designs to use instead.

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