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A high-level design provides an overview of a system, product, service, or process. Such an overview helps supporting components be compatible to others. The highest-level design should briefly describe all platforms, systems, products, services, and processes that it depends on, and include any important changes that need to be made to them.
Low-level design (LLD) is a component-level design process that follows a step-by-step refinement process. This process can be used for designing data structures , required software architecture , source code and ultimately, performance algorithms .
High-level and low-level, as technical terms, are used to classify, describe and point to specific goals of a systematic operation; and are applied in a wide range of contexts, such as, for instance, in domains as widely varied as computer science and business administration.
An example is that a normalization function for the LatitudeDimension could map a latitude value ranging from -90.0 to +90.0 to an integer in the range 0..179. A normalization function for the CarBrandDimension could map a set of car brands Kia, Ford, BMW and Peugeot to an integer in the range 0..3.
SystemC is an example of such—embedded system hardware can be modeled as non-detailed architectural blocks (black boxes with modeled signal inputs and output drivers). The target application is written in C or C++ and natively compiled for the host-development system; as opposed to targeting the embedded CPU, which requires host-simulation of ...
An example of both of these trends is the SAFE [4] project. Compare language-based systems , where the software (especially operating system) is based around a safe, high-level language, though the hardware need not be: the "trusted base" may still be in a lower level language.
Microsoft founder Bill Gates is telling his “origin story” in his own words with the memoir Source Code, being released on Feb. 4 "My parents and early friends put me in a position to have a ...
LLD usually refers to Legum Doctor (LL.D.), a doctorate-level academic degree in law. LLD may also refer to: Ladin language, ISO 639-3 code lld; Leg length discrepancy; lld, the subproject of the LLVM compiler infrastructure project; Loan Level Data, collected by the ABS Loan Level Initiative; Low-level design of software components